Mt Simulation Examination 1

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  • 1/122 Questions

    Dermatophytosis refers to fungal diseases

    • That resists antibiotic treatment
    • Of the hair, skin and nails
    • That spreads to the internal organs
    • That accompanies predisposing factors
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About This Quiz

This is a Simulated Examination for Gulf Medtech/Labtech Examinations taken from Last Month's HAAD Feedbacks.
This examination contains 100 of the most UPDATED EXAMS from Abu Dhabi, KSA, and UAE.
Take this examination for 120 minutes. You need to get 86% to pass the HAAD. 60% to pass MOH, DHA, or Prometrics.
Please text 0919-286-29-29 in the See morePhilippines or visit our website www. Rtonline. Weebly. Com THIS IS YOUR ASSESSMENT FOR ANY GULF RT EXAMINATIONS INCLUDING HAAD MT, SAUDI PROMETRICS, DUBAI DHA, AND UAE MOH. THE QUESTIONS HERE ARE TAKEN FROM THIS ACTUAL EXAMINATIONS, SO PASSING THIS ASSESSMENT EXAM WILL GIVE YOU A HIGH PROBABILITY OF PASSING THE SAID EXAMINATIONS

Mt Simulation Examination 1 - Quiz

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  • 2. 

    SARS is caused by a 

    • Coronavirus

    • Paramyxovirus

    • Herpesvirus

    • Retrovirus

    Correct Answer
    A. Coronavirus
    Explanation
    SARS, or Severe Acute Respiratory Syndrome, is caused by a coronavirus. Coronaviruses are a type of virus that can cause respiratory illnesses in humans and animals. They are named after their crown-like appearance under a microscope, with spike proteins protruding from their surface. The SARS coronavirus was first identified in 2003 during an outbreak in Asia and is known to cause severe respiratory symptoms such as fever, cough, and difficulty breathing. Other types of coronaviruses, such as the one responsible for COVID-19, can also cause similar respiratory illnesses.

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  • 3. 

    The person who studies fungi

    • Must be highly trained in zoology

    • Is called a mycologist

    • Is called a phycologist

    • Must be highly trained in anatomy

    Correct Answer
    A. Is called a mycologist
    Explanation
    A person who studies fungi is called a mycologist. This term specifically refers to individuals who have expertise and knowledge in the field of mycology, which is the scientific study of fungi. Mycologists are highly trained in various aspects related to fungi, including their classification, identification, ecology, and physiology. They study the structure, growth, and reproduction of fungi, as well as their interactions with other organisms and their roles in ecosystems. Therefore, it is accurate to say that a person who studies fungi is called a mycologist.

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  • 4. 

    Aspergillus flavus is a special problem in agriculture because

    • Is contaminates grapes

    • It lessens the yield of wheat by causing rust diseases

    • It produces aflatoxins in agriculture products

    • It contaminates potatoes

    Correct Answer
    A. It produces aflatoxins in agriculture products
    Explanation
    Aspergillus flavus is a special problem in agriculture because it produces aflatoxins in agricultural products. Aflatoxins are toxic substances produced by certain molds, including Aspergillus flavus, and can contaminate a wide range of crops such as corn, peanuts, cottonseed, and tree nuts. These toxins are harmful to both humans and animals, as they can cause liver damage, cancer, and other health issues. Therefore, the production of aflatoxins by Aspergillus flavus poses a significant threat to the safety and quality of agricultural products.

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  • 5. 

    Organisms that are normally and consistently found in or on the body in the absence of disease

    • Normal Flora

    • Symbiosis

    • Commensalism

    • Mutualism

    • Parasitism

    Correct Answer
    A. Normal Flora
    Explanation
    Normal flora refers to the microorganisms that live on or in the body without causing disease. These organisms are typically found in specific areas of the body, such as the skin, mouth, and intestines. They have a mutually beneficial relationship with the host, as they provide certain benefits such as aiding in digestion and preventing the growth of harmful bacteria. The presence of normal flora is essential for maintaining the overall health and balance of the body.

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  • 6. 

    The sporozoite merozoite, and gametocyte are all stages of

    • The ciliate that causes balantidiases

    • The amoebia that causes PAM

    • The arthropod that transmits babesiosis

    • Plasmodium that invades red blood cells

    Correct Answer
    A. Plasmodium that invades red blood cells
    Explanation
    The correct answer is Plasmodium that invades red blood cells. The sporozoite, merozoite, and gametocyte are all different stages of the Plasmodium parasite, which is responsible for causing malaria. The sporozoite is the infective stage that is transmitted to humans through the bite of an infected mosquito. Once inside the human body, the sporozoites invade liver cells and multiply, forming merozoites. The merozoites then infect red blood cells, where they multiply further and cause the characteristic symptoms of malaria. Gametocytes are the sexual stage of the parasite, which can be taken up by mosquitoes during a blood meal, completing the life cycle of the Plasmodium parasite.

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  • 7. 

    Which is an oppurtunistic mold, saprophytic, monomorphic mold that causes superficial infections of the outer ear?

    • Tinea Faciei

    • Otomycosis

    • Pityriasis (Tinea) Versicolor

    • Tinea Capitis Ectothrix

    • Tinea Barbae

    Correct Answer
    A. Otomycosis
    Explanation
    Otomycosis is an opportunistic mold that causes superficial infections of the outer ear. It is characterized by the growth of molds such as Aspergillus and Candida in the ear canal. This condition is commonly seen in individuals with a history of frequent water exposure, such as swimmers or individuals who use hearing aids. Otomycosis can cause symptoms such as itching, pain, discharge, and hearing loss. Treatment usually involves antifungal medications to eliminate the fungal infection.

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  • 8. 

    Itching, pain, inflammation, loss of hearing and serous secretions of a chronic infection of the external ear is characterized by?

    • Otomycosis

    • Tinea Faciei

    • Tinea Barbae

    • Tinea Favosa

    • Histoplasmosis

    Correct Answer
    A. Otomycosis
    Explanation
    Otomycosis is a fungal infection of the external ear. It is characterized by symptoms such as itching, pain, inflammation, loss of hearing, and serous secretions. This condition is caused by the invasion of fungi, usually Aspergillus or Candida species, into the ear canal. Treatment typically involves antifungal medications to eliminate the infection and alleviate the associated symptoms.

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  • 9. 

    Oncogens are genes that

    • Transform normal cells to cancer cells

    • Influence ongoing protein production

    • Encourage recombinations in bacteria

    • The virus uses to replicate itself

    Correct Answer
    A. Transform normal cells to cancer cells
    Explanation
    Oncogenes are genes that have the ability to transform normal cells into cancer cells. They can cause uncontrolled cell division and growth, leading to the development of tumors. When these oncogenes are activated or mutated, they can disrupt the normal regulation of cell growth and division, resulting in the transformation of healthy cells into cancerous cells. This transformation process is a key characteristic of oncogenes and their role in the development of cancer.

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  • 10. 

    The triatomid bug is best known as the

    • Vector of South American sleeping sickness

    • Insect that harbors balantidium species

    • Arthropod that transmits toxoplasmosis

    • Mosquito that carries malaria

    Correct Answer
    A. Vector of South American sleeping sickness
    Explanation
    The correct answer is "vector of South American sleeping sickness." The triatomid bug, also known as the "kissing bug," is responsible for transmitting Trypanosoma cruzi, the parasite that causes South American sleeping sickness. This disease is prevalent in Latin America and can lead to serious health complications if left untreated. The triatomid bug feeds on the blood of humans and animals, and during the feeding process, it can transmit the parasite through its feces. The bug is often found in rural areas, where it typically lives in cracks and crevices of poorly constructed houses.

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  • 11. 

    A sexually transmitted protozoal disease is

    • African trypanosomiasis

    • Trichomoniasis

    • American trypanosomiasis

    • Toxoplasmosis

    Correct Answer
    A. Trichomoniasis
    Explanation
    Trichomoniasis is a sexually transmitted protozoal disease caused by the parasite Trichomonas vaginalis. It is primarily transmitted through sexual intercourse and affects both men and women. Symptoms include itching, burning, and discharge in women, while men may experience irritation and discharge from the penis. If left untreated, trichomoniasis can lead to complications such as pelvic inflammatory disease in women and prostate issues in men. It can be diagnosed through laboratory tests and is treated with prescription medications. Safer sexual practices, such as using condoms, can help prevent the transmission of trichomoniasis.

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  • 12. 

    What is caused by Malassezia furfur?

    • Tinea Faciei

    • Otomycosis

    • Pityriasis (Tinea) Versicolor

    • Tinea Capitis Ectothrix

    • Tinea Barbae

    Correct Answer
    A. Pityriasis (Tinea) Versicolor
    Explanation
    Malassezia furfur is a type of fungus that causes Pityriasis (Tinea) Versicolor. This condition is characterized by the development of discolored patches on the skin, usually on the chest, back, and upper arms. The fungus disrupts the normal pigmentation of the skin, leading to the appearance of lighter or darker patches. Pityriasis Versicolor is not contagious but can be recurrent and is commonly seen in warm and humid climates. Treatment usually involves the use of antifungal medications, such as topical creams or oral medications, to eliminate the fungus and restore the normal color of the skin.

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  • 13. 

    The MMR immunization program has significantly affected the annual incidence of all the following disease except

    • Rubella

    • Mumps

    • Measles

    • Chickenpox

    Correct Answer
    A. Chickenpox
    Explanation
    The MMR immunization program has had a significant impact on the annual incidence of rubella, mumps, and measles. These diseases have seen a decline in cases due to the vaccination program. However, the program has not had the same effect on chickenpox. Chickenpox is caused by the varicella-zoster virus and is not included in the MMR vaccine. Therefore, the annual incidence of chickenpox has not been significantly affected by the MMR immunization program.

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  • 14. 

    Ontrolled byEpidemics of African trypanosomiasis may be c

    • Eliminating infestations of tsetse flies

    • Treting infections in pigs

    • Filtering the local water supplies

    • Cooking beef thoroughly before cooking

    Correct Answer
    A. Eliminating infestations of tsetse flies
    Explanation
    African trypanosomiasis, also known as sleeping sickness, is a parasitic disease transmitted by tsetse flies. These flies are the primary vectors for the disease, so eliminating their infestations would help control the spread of the disease. By reducing the population of tsetse flies, the chances of humans and animals getting infected with the parasite decreases significantly. Therefore, eliminating infestations of tsetse flies is an effective measure to prevent the spread of African trypanosomiasis.

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  • 15. 

    Which of the following is not a characteristic of giardiases

    • It is caused by a flagellated protozoan

    • Diarrhea is a notable sign

    • Outbreaks have been reported in mountainous areas of the US

    • Transmission occurs by tick bites

    Correct Answer
    A. Transmission occurs by tick bites
    Explanation
    Giardiasis is a parasitic infection caused by a flagellated protozoan. One of the notable signs of giardiasis is diarrhea. Outbreaks of giardiasis have been reported in mountainous areas of the US. However, transmission of giardiasis does not occur through tick bites. Therefore, "transmission occurs by tick bites" is not a characteristic of giardiasis.

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  • 16. 

    I am an African American woman and I present with pinkish-white patches on the skin of my upper body. What do I have?

    • Pityriasis (Tinea) Versicolor

    • Tinea Favosa

    • Otomycosis

    • Tinea Barbae

    • Tinea Capitis Ectothrix

    Correct Answer
    A. Pityriasis (Tinea) Versicolor
    Explanation
    The pinkish-white patches on the skin of the upper body are indicative of Pityriasis (Tinea) Versicolor. This condition is a fungal infection caused by the yeast Malassezia furfur. It commonly affects individuals with oily skin and is more prevalent in hot and humid climates. The patches may be more noticeable in individuals with darker skin tones, such as African Americans. Treatment typically involves antifungal medications, such as topical creams or oral medications, to eliminate the yeast and restore the normal color of the skin.

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  • 17. 

    Type of symbiosis in which both host and parasite benefit.

    • Normal Flora

    • Symbiosis

    • Commensalism

    • Mutualism

    • Parasitism

    Correct Answer
    A. Mutualism
    Explanation
    Mutualism is a type of symbiosis in which both the host and the parasite benefit. In this relationship, both organisms rely on each other for survival and gain advantages from the interaction. Unlike parasitism, where one organism benefits at the expense of the other, mutualism is a cooperative relationship where both parties benefit. Normal flora refers to the microorganisms that live on or inside the body without causing harm, while commensalism is a type of symbiosis where one organism benefits while the other is unaffected.

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  • 18. 

    Which one of the following applies to the fungus Cryptococcus neoformans

    • The organism belongs to the phylum Ascomycota

    • The organism grows in the dropping of pigeons

    • The organism is an anaerobic fungus

    • The organism is normally found in the human intestine

    Correct Answer
    A. The organism grows in the dropping of pigeons
    Explanation
    The correct answer is "The organism grows in the dropping of pigeons". This is because Cryptococcus neoformans is commonly found in the droppings of pigeons and other birds. It is a fungus that can cause infections in humans, particularly those with weakened immune systems.

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  • 19. 

    The TORCH diseases are those that

    • Are associated with high fever syndromes

    • Pass from a pregnant woman to the developing fetus

    • Cause the body to burn with fever

    • Can be treated with antibiotics

    Correct Answer
    A. Pass from a pregnant woman to the developing fetus
    Explanation
    TORCH diseases refer to a group of infections that can be transmitted from a pregnant woman to her developing fetus. These infections include toxoplasmosis, rubella, cytomegalovirus, and herpes simplex virus. They can cause serious health issues in the fetus, including birth defects, developmental delays, and even fetal death. Treatment options for TORCH infections vary depending on the specific infection, but antibiotics may be used in some cases.

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  • 20. 

    A drug thought to inhibit viral disease because it is a base analog substitute is

    • Acyclovir

    • Zanamivir

    • Amanitadine

    • TORCH

    Correct Answer
    A. Acyclovir
    Explanation
    Acyclovir is a drug that is commonly used to treat viral infections, particularly those caused by herpes viruses. It is a base analog substitute, meaning that it is structurally similar to the building blocks of DNA. By mimicking these building blocks, acyclovir can be incorporated into the viral DNA during replication, causing premature termination of the DNA chain and preventing the virus from replicating further. This inhibition of viral replication helps to control and reduce the symptoms of viral diseases caused by herpes viruses.

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  • 21. 

    Chitin is a component of the fungal

    • Cytoplasm

    • Krebs cycle where energy is formed

    • Cell wall

    • Cell nucleus

    Correct Answer
    A. Cell wall
    Explanation
    Chitin is a component of the fungal cell wall. The cell wall provides structural support and protection to the fungal cell. Chitin is a tough and flexible polysaccharide that is found in the cell walls of fungi, as well as in the exoskeletons of arthropods. It helps to maintain the shape and integrity of the cell, and also provides a barrier against harmful substances. Therefore, the correct answer is cell wall.

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  • 22. 

    Infection of Pityriasis (Tinea) Versicolor are most common between?

    • Adolescence and Elderly

    • Adolescence and Middle Age

    • Middle Age and Elderly

    • Neonates and Adolescence

    • Middle Age and Neonates

    Correct Answer
    A. Adolescence and Middle Age
    Explanation
    Pityriasis (Tinea) Versicolor is a fungal infection that is caused by the overgrowth of a type of yeast on the skin. It is most commonly seen in individuals who have oily skin or live in hot, humid climates. Adolescence and middle age are the periods of life when hormonal changes occur, leading to increased oil production in the skin. This excess oil provides an ideal environment for the yeast to grow and cause an infection. Therefore, the infection of Pityriasis (Tinea) Versicolor is most common between adolescence and middle age.

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  • 23. 

    KOH/PAS staining of skin scrapings show short, stubby hyphae and globose budding yeast cells (spaghetti and meatballs)

    • Tinea Favosa

    • Tinea Faciei

    • Otomycosis

    • Pityriasis (Tinea) Versicolor

    • Tinea Barbae

    Correct Answer
    A. Pityriasis (Tinea) Versicolor
    Explanation
    The given answer, Pityriasis (Tinea) Versicolor, is correct because the description of "short, stubby hyphae and globose budding yeast cells" is characteristic of this fungal infection. Pityriasis versicolor is caused by the yeast Malassezia furfur and typically presents with hypo- or hyperpigmented patches on the skin. The "spaghetti and meatballs" appearance refers to the combination of hyphae and yeast cells seen on microscopic examination, which is a distinguishing feature of this condition.

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  • 24. 

    Histoplasmosis is primarily a disease of

    • The lungs

    • Soldiers and other military personnel

    • The winter months

    • Oak trees and grape vines

    Correct Answer
    A. The lungs
    Explanation
    Histoplasmosis is primarily a disease that affects the lungs. It is caused by inhaling spores of a fungus called Histoplasma, which is commonly found in soil contaminated with bird or bat droppings. When these spores are inhaled, they can cause an infection in the lungs. This respiratory infection can range from mild to severe, and in some cases, it can spread to other parts of the body. Therefore, the correct answer is the lungs.

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  • 25. 

    This is a monomorphic mold that causes cutaneous mycoses of the glaborus skin of the face. Doesn't involve the hair on the face.

    • Tinea Faciei

    • Otomycosis

    • Tinea Corporis

    • Tinea Barbae

    • Tinea Capitis Ecothothrix

    Correct Answer
    A. Tinea Faciei
    Explanation
    Tinea Faciei is the correct answer because it refers to a fungal infection that affects the glabrous skin of the face. Glabrous skin refers to the smooth, hairless skin found on the face, as opposed to the hairy areas such as the scalp or beard. This infection is caused by a monomorphic mold and is characterized by red, scaly patches on the face. The other options, such as Otomycosis (fungal infection of the ear), Tinea Corporis (fungal infection of the body), Tinea Barbae (fungal infection of the beard), and Tinea Capitis Ecothothrix (fungal infection of the scalp), do not specifically involve the glabrous skin of the face.

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  • 26. 

    I am a pale white person and I present with red, brownish, blotchy, scaly, painless, hypopigmented or hyperpigmented patches on the skin of my upper body? What do I have?

    • Tinea Capitis Endothrix

    • Tinea Favosa

    • Tinea Faciei

    • Pityriasis (tinea) versicolor

    • Otomycosis

    Correct Answer
    A. Pityriasis (tinea) versicolor
    Explanation
    The correct answer is Pityriasis (tinea) versicolor. Pityriasis versicolor is a common fungal infection of the skin caused by the yeast Malassezia. It typically presents with red, brownish, blotchy, scaly, painless, hypopigmented or hyperpigmented patches on the upper body, especially the chest and back. The condition is more common in individuals with oily skin or in hot and humid climates. Treatment usually involves antifungal medications applied topically or taken orally.

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  • 27. 

    Chloroquine, primaquine, and quinine are of value for the treatment eof

    • Urinary tract infections

    • Cases of malaria

    • Infections cause by bacteria of the intestinal tract

    • Fungal diseases

    Correct Answer
    A. Cases of malaria
    Explanation
    Chloroquine, primaquine, and quinine are medications that are commonly used for the treatment of malaria. Malaria is a parasitic infection caused by the bite of infected mosquitoes. These drugs work by targeting the parasite and preventing its growth and replication within the body. Therefore, they are specifically indicated for cases of malaria and not for urinary tract infections, bacterial infections of the intestinal tract, or fungal diseases.

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  • 28. 

    A patient comes into the doctor's office and their external auditory meatus contains large masses of epithelial debris containing fungi and/or bacteria and fungi. What does the patient have?

    • Otomycosis

    • Tinea Favosa

    • Pityrasis (tinea) versicolor

    • Tina Capitis Ectothrix

    • Tinea Capitis Endothrix

    Correct Answer
    A. Otomycosis
    Explanation
    The patient has otomycosis, which is a fungal infection of the external auditory meatus. This is indicated by the presence of large masses of epithelial debris containing fungi and/or bacteria and fungi. Otomycosis commonly occurs due to the overgrowth of Candida or Aspergillus species in the ear canal. It can cause symptoms such as itching, pain, discharge, and hearing loss. Treatment typically involves the use of antifungal medications to eliminate the infection.

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  • 29. 

    One of the limitations of the autoclave is that

    • Some plasticware melts in the high heat

    • Glassware melts in the high heat

    • Endospores are not destroyed

    • Protozoal cysts are not destroyed

    Correct Answer
    A. Some plasticware melts in the high heat
    Explanation
    The autoclave uses high heat and pressure to sterilize equipment and materials. However, some plasticware is not able to withstand the high temperatures and can melt or deform under these conditions. This limits the use of the autoclave for sterilizing certain types of plasticware, as they may become damaged or unusable in the process.

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  • 30. 

    German measles is similar to measles because

    • Both diseases are caused by the same virus

    • The gastrointestinal tract is involved in both diseases

    • A skin rash occurs in both diseases

    • Both diseases lead to Reyes syndrome

    Correct Answer
    A. A skin rash occurs in both diseases
    Explanation
    German measles, also known as rubella, is similar to measles because both diseases cause a skin rash. While they are caused by different viruses, the presence of a skin rash is a common symptom in both cases. This rash typically starts on the face and spreads to the rest of the body. Other symptoms may also be present, such as fever, sore throat, and swollen lymph nodes. However, it is important to note that German measles and measles are distinct diseases caused by different viruses.

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  • 31. 

    The gas used in municipal water supplies to keep bacterial populations low is

    • A phenol derivative

    • Also used to preserve food

    • Chlorine

    • Silver

    Correct Answer
    A. Chlorine
    Explanation
    Chlorine is used in municipal water supplies to keep bacterial populations low. It is a commonly used disinfectant that effectively kills bacteria and other microorganisms present in water. Chlorine is also used to preserve food due to its antimicrobial properties. It helps to prevent the growth of bacteria and extend the shelf life of food products.

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  • 32. 

    The malaria attack coincides with

    • The bite of the moswuito

    • Entry of the parasites to the liver

    • The release of parasites from infected red blood cells

    • Destruction of the spleen in the body

    Correct Answer
    A. The bite of the moswuito
    Explanation
    The correct answer is "the bite of the mosquito". Malaria is a disease caused by parasites that are transmitted to humans through the bite of infected mosquitoes. When an infected mosquito bites a person, it injects the malaria parasites into their bloodstream. These parasites then travel to the liver, where they multiply and mature. Eventually, the parasites are released into the bloodstream, infecting red blood cells. The destruction of the spleen is not directly related to the initial transmission of the disease.

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  • 33. 

    Silver nitrate may be used to

    • Kill coliform bacteria in polluted water

    • Rinse pasteurization tubes

    • Sterilize plastics

    • Prevent gonorrhea in the eyes of newborns

    Correct Answer
    A. Prevent gonorrhea in the eyes of newborns
    Explanation
    Silver nitrate is commonly used as a prophylactic treatment for newborns to prevent gonorrhea infection in their eyes. This is because silver nitrate has antimicrobial properties and can effectively kill or inhibit the growth of bacteria, including the bacteria responsible for gonorrhea. The application of silver nitrate in the eyes of newborns helps to prevent the transmission of the infection from the mother to the baby during childbirth.

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  • 34. 

    An obligatory relationship in which one organism, the parasite, is metabolically dependent on another organism, the host. The host is usually harmed.

    • Normal flora

    • Symbiosis

    • Commensalism

    • Mutualism

    • Parasitism

    Correct Answer
    A. Parasitism
    Explanation
    Parasitism is the correct answer because it describes a relationship in which one organism, the parasite, depends on another organism, the host, for its metabolic needs. In this relationship, the host is usually harmed. This distinguishes it from other options like symbiosis, commensalism, and mutualism, which do not necessarily involve harm to the host.

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  • 35. 

    The close association or living together of organisms of different species.

    • Normal flora

    • Symbiosis

    • Commensalism

    • Mutualism

    • Parasitism

    Correct Answer
    A. Symbiosis
    Explanation
    Symbiosis refers to the close association or living together of organisms of different species. It is a relationship where both organisms benefit from each other. This can include mutualism, where both organisms benefit, or commensalism, where one organism benefits while the other is unaffected. It can also involve parasitism, where one organism benefits at the expense of the other. Symbiosis is a broad term that encompasses various types of interactions between different species.

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  • 36. 

    The cytopathic effect (CPE)

    • Are replicating in tissue culture cells

    • Have induced cells to produce interferons

    • Are forming new capsid proteins

    • Have entered the state of lysogeny with host cells

    Correct Answer
    A. Are replicating in tissue culture cells
    Explanation
    The correct answer is "are replicating in tissue culture cells". The cytopathic effect (CPE) refers to the visible changes that occur in cells when they are infected with a virus. These changes can include cell rounding, detachment from the surface, cell death, and the formation of syncytia. These changes are a result of the virus replicating within the tissue culture cells, leading to cell damage and ultimately cell death.

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  • 37. 

    A human form of BSA is called

    • Scrapie

    • Wasting disease

    • Variant CJD

    • TSE

    Correct Answer
    A. Variant CJD
    Explanation
    Variant CJD (Creutzfeldt-Jakob disease) is a human form of Bovine Spongiform Encephalopathy (BSA), commonly known as "mad cow disease." It is a rare and fatal neurodegenerative disorder caused by abnormal proteins called prions. Variant CJD is believed to be contracted by consuming contaminated beef products from cows infected with BSA. The disease affects the central nervous system, causing rapid mental deterioration, muscle stiffness, and eventually leading to death. Therefore, variant CJD is the correct answer as it accurately represents the human form of BSA.

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  • 38. 

    Which is not true of the transmission of Tinea Capitis Ectothrix?

    • Can be transmitted from person to person

    • Can be transmitted by contaminated fomites

    • Can be transmitted by non-human mammals

    • Can be transmitted by aerial dissemination

    • Can be transmitted by kissing

    Correct Answer
    A. Can be transmitted by kissing
    Explanation
    Tinea Capitis Ectothrix cannot be transmitted by kissing. This type of fungal infection is typically transmitted from person to person, through contaminated fomites (objects or materials that can carry the infection), and through aerial dissemination (inhalation of fungal spores in the air). It can also be transmitted by non-human mammals, such as cats and dogs. However, kissing is not a known mode of transmission for this infection.

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  • 39. 

    This protozoan can cause serious problems if a pregnant woman becomes infected. The fetus may become infected because the parasites pass across the placenta. They may cause brain and eye damage, lensions of the visceral organs, or spontaneous abortion.

    • Toxoplasma gondii

    • Trypanosoma brucei

    • Trypanosoma cruzi

    • Trichomonas vaginalis

    Correct Answer
    A. Toxoplasma gondii
    Explanation
    Toxoplasma gondii is the correct answer because it is a protozoan that can cause serious problems if a pregnant woman becomes infected. This is because the parasites can pass across the placenta and infect the fetus, leading to potential brain and eye damage, lesions of the visceral organs, or even spontaneous abortion.

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  • 40. 

    A type of symbiosis where a parasite is benefited and the host is neither benefited nor harmed by the relationship

    • Normal flora

    • Symbiosis

    • Commensalism

    • Mutualism

    • Parasitism

    Correct Answer
    A. Commensalism
    Explanation
    Commensalism is a type of symbiotic relationship where one organism, in this case the parasite, benefits while the host is neither benefited nor harmed. In commensalism, the parasite benefits by using the host for resources or shelter without causing any harm or benefit to the host. This relationship is characterized by one-sided benefits, with the parasite benefiting and the host remaining unaffected.

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  • 41. 

    Two important means for contracting toxoplasmosis are

    • Inhaling protozoa and an arthropod bite

    • An arthropod bite and consuming rare beef

    • Consuming rare beef and contact with a cat

    • Contact with a cat and inhaling protozoa

    Correct Answer
    A. Consuming rare beef and contact with a cat
    Explanation
    Toxoplasmosis is a parasitic infection caused by the Toxoplasma gondii parasite. Consuming rare beef can be a means of contracting toxoplasmosis because the parasite can be present in undercooked or raw meat. Contact with a cat is also a common means of contracting toxoplasmosis because cats are the primary host for the parasite and can shed the infectious form of the parasite in their feces. Therefore, consuming rare beef and contact with a cat are both important means for contracting toxoplasmosis.

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  • 42. 

    Quinine is effective in the treatment of disease caused by members of the genus

    • Plasmodium

    • Toxoplasma

    • Giardia

    • Leishmania

    Correct Answer
    A. Plasmodium
    Explanation
    Quinine is effective in the treatment of diseases caused by members of the genus Plasmodium. Plasmodium is a genus of parasitic protozoa that causes malaria in humans. Quinine has been used for centuries as a treatment for malaria due to its antimalarial properties. It works by interfering with the growth and reproduction of the Plasmodium parasites, ultimately killing them and curing the infection. Therefore, quinine is specifically effective against diseases caused by Plasmodium.

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  • 43. 

    Soft contact lenses and heat sensitive plastics are disinfective in about 30 minutes using

    • Benzoic acid

    • Phenol

    • Hydrogen peroxide

    • Sulfuric acid

    Correct Answer
    A. Hydrogen peroxide
    Explanation
    Hydrogen peroxide is the correct answer because it is commonly used as a disinfectant for soft contact lenses and heat sensitive plastics. It has strong antimicrobial properties and can effectively kill bacteria, viruses, and fungi. Additionally, hydrogen peroxide breaks down into water and oxygen, making it a safe and environmentally friendly option for disinfection.

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  • 44. 

    The retrovirus can synthesize DNA from RNA because it contains

    • The necessary glucose molecules

    • Envelope proteins that provide receptor sites

    • The enzyme reverse transcriptase

    • Cytoplasm within its genome

    Correct Answer
    A. The enzyme reverse transcriptase
    Explanation
    The retrovirus can synthesize DNA from RNA because it contains the enzyme reverse transcriptase. Reverse transcriptase is an enzyme that allows the retrovirus to convert its RNA genome into DNA. This process is known as reverse transcription and is a unique characteristic of retroviruses. By using reverse transcriptase, the retrovirus is able to integrate its DNA into the host cell's genome, allowing it to replicate and produce more viruses. This enzyme plays a crucial role in the life cycle of retroviruses and is essential for their ability to synthesize DNA from RNA.

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  • 45. 

    An animal that is wide-eyed, drooling, and eager to attach anything in sight may be suffering from

    • Marburg disease

    • Furious disease

    • Leptospirosis

    • Dumb rabies

    Correct Answer
    A. Furious disease
    Explanation
    An animal that is wide-eyed, drooling, and eager to attack anything in sight may be suffering from furious disease. This disease is a form of rabies that affects the central nervous system, causing aggressive behavior in animals. The symptoms include excessive salivation, hyperactivity, and a heightened state of aggression. It is important to recognize these signs in order to take appropriate precautions and seek medical attention if necessary.

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  • 46. 

    Hexylresorcinol and hexachlorophene are related because

    • Both are derivatives of phenol

    • Both are used in commercial mouthwash

    • Both have substantial side effects on the kidney

    • Both are formaldehyde derivatives

    Correct Answer
    A. Both are derivatives of phenol
    Explanation
    Hexylresorcinol and hexachlorophene are related because both are derivatives of phenol. Phenol is a chemical compound that is widely used in various industries, including pharmaceuticals. Derivatives of phenol are compounds that are derived from phenol by modifying its structure. In the case of hexylresorcinol and hexachlorophene, they are both derived from phenol by adding different chemical groups to the phenol molecule. Therefore, they are related as derivatives of phenol.

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  • 47. 

    Flucytosine, cltrimazole, and ketoconazole typify the 

    • Drugs for treating leprosy

    • Modern salfonamide drugs

    • Antifungal antibiotics

    • Cell wall inhibitors

    Correct Answer
    A. Antifungal antibiotics
    Explanation
    Flucytosine, cltrimazole, and ketoconazole are all examples of antifungal antibiotics. These drugs are specifically used to treat fungal infections, not leprosy or cell wall inhibitors.

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  • 48. 

    Viruses that have spikes on their envelopes and contain both hemagglutinin and neuraminidase cause

    • Chickenpox

    • Influenza

    • Smallpox

    • The common cold

    Correct Answer
    A. Influenza
    Explanation
    Viruses that have spikes on their envelopes and contain both hemagglutinin and neuraminidase cause influenza. Hemagglutinin helps the virus attach to host cells, while neuraminidase helps the virus release itself from infected cells. Influenza is a viral respiratory illness that can cause symptoms such as fever, cough, sore throat, and body aches. It is highly contagious and can spread easily from person to person. Vaccines and antiviral medications are available to prevent and treat influenza.

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  • 49. 

    Once the symptoms have fully materialized in an individual, rabies has

    • Increased susceptibility to antibiotic treatment

    • No chance of beiing transmitted among animals

    • A great susceptibility to antibodies

    • One of the highest motility rates of any human diseases

    Correct Answer
    A. One of the highest motility rates of any human diseases
    Explanation
    Rabies has one of the highest motility rates of any human diseases. This means that the virus is highly mobile and can quickly spread throughout the body once symptoms have fully developed. This high motility rate contributes to the rapid progression of the disease and its ability to affect the nervous system. It is important to seek immediate medical attention if exposed to rabies, as the virus can quickly spread and cause severe neurological damage.

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Quiz Review Timeline (Updated): Mar 21, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 22, 2016
    Quiz Created by
    Wantunine

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