Understanding Obligate Parasites: Definitions and Types Quiz

1. What is typically found at the beginning of a book to outline its contents?

Appendix

Bibliography

Index

The table of contents provides an overview of the structure of the book by listing its chapters and sections in order.

Explanation

The table of contents provides an overview of the structure of the book by listing its chapters and sections in order.

2. What is an endoparasite?

Parasite living inside the host

A parasite that lives on the host's skin.

A parasite living outside the host.

A parasite that only affects plants.

An endoparasite is a type of parasite that lives inside the host's body, such as in the digestive tract or tissues.

Explanation

An endoparasite is a type of parasite that lives inside the host's body, such as in the digestive tract or tissues.

3. What is an ectoparasite?

Parasite that lives within the host's bloodstream.

Parasite that resides in the host's digestive system.

Parasite that feeds on dead skin cells.

Parasite that live on the external surface of a host

An ectoparasite is a parasite that lives on the external surface of a host, such as on the skin or feathers. It does not reside within the bloodstream, feed on dead skin cells, or reside in the host's digestive system.

Explanation

An ectoparasite is a parasite that lives on the external surface of a host, such as on the skin or feathers. It does not reside within the bloodstream, feed on dead skin cells, or reside in the host's digestive system.

4. What is meant by an obligate parasite?

A parasite that only feeds on blood.

A parasite that can survive both inside and outside of a host.

A parasite that grows rapidly in any environment.

Unable to grow outside of a living host

An obligate parasite is a type of parasite that is entirely dependent on a living host for its survival and reproduction. It cannot grow or thrive outside of a host organism.

Explanation

An obligate parasite is a type of parasite that is entirely dependent on a living host for its survival and reproduction. It cannot grow or thrive outside of a host organism.

5. What is a facultative parasite?

An organism that never engages in parasitic activity.

An organism that solely relies on a host for completion of its life cycle.

An organism that can only survive outside of a host.

A facultative parasite is characterized by the ability to engage in parasite activity when needed, but it is not entirely dependent on a host for its life cycle, making it different from obligate parasites that rely completely on hosts.

Explanation

A facultative parasite is characterized by the ability to engage in parasite activity when needed, but it is not entirely dependent on a host for its life cycle, making it different from obligate parasites that rely completely on hosts.

6. State the name of the disease-causing organism.

Plasmodium falciparum

Escherichia coli

Entamoeba histolytica

Streptococcus pyogenes

Entamoeba histolytica is a protozoan parasite that causes the disease amoebiasis.

Explanation

Entamoeba histolytica is a protozoan parasite that causes the disease amoebiasis.

7. Identify the disease caused by the parasitic infection of Entamoeba histolytica.

Amebiasis

Tuberculosis

Cholera

Malaria

Amebiasis is caused by the parasitic infection of Entamoeba histolytica, while Malaria is caused by Plasmodium parasites, Cholera is caused by Vibrio cholerae bacteria, and Tuberculosis is caused by Mycobacterium tuberculosis bacteria.

Explanation

Amebiasis is caused by the parasitic infection of Entamoeba histolytica, while Malaria is caused by Plasmodium parasites, Cholera is caused by Vibrio cholerae bacteria, and Tuberculosis is caused by Mycobacterium tuberculosis bacteria.

8. How is the disease transmitted?

Through direct contact with an infected person's bodily fluids.

By inhaling respiratory droplets from an infected person.

By being bitten by an infected mosquito.

Transmitted via the fecal-oral route by contaminated water or food

The correct answer explains the mode of transmission of the disease, which is through contaminated water or food. The incorrect answers provide alternative methods of transmission that are not applicable to the specific disease.

Explanation

The correct answer explains the mode of transmission of the disease, which is through contaminated water or food. The incorrect answers provide alternative methods of transmission that are not applicable to the specific disease.

9. Which body system is most commonly affected by parasites that reproduce in the digestive tract and migrate to the large intestine causing bloody diarrhea, colitis, and tissue destruction?

Nervous system

Parasite reproduce in the digestive tract and migrate to the large intestineThis cause bloody diarrhea. colitis and tissue destruction

Respiratory system

Endocrine system

Parasites that reproduce in the digestive tract and migrate to the large intestine primarily affect the gastrointestinal system, leading to symptoms like bloody diarrhea, colitis, and tissue destruction.

Explanation

Parasites that reproduce in the digestive tract and migrate to the large intestine primarily affect the gastrointestinal system, leading to symptoms like bloody diarrhea, colitis, and tissue destruction.

10. State the name of the organism known as Giardia lamblia.

E. coli

Aspergillus niger

Plasmodium falciparum

Giardia lamblia

Giardia lamblia is a parasitic protozoan that causes giardiasis, an infection of the small intestine in humans and other mammals.

Explanation

Giardia lamblia is a parasitic protozoan that causes giardiasis, an infection of the small intestine in humans and other mammals.

11. Identify the disease caused by the parasite Giardia lamblia.

Giardiasis

Malaria

Tuberculosis

Dengue

Giardiasis is a gastrointestinal infection caused by the parasite Giardia lamblia. Symptoms include diarrhea, abdominal cramps, bloating, and nausea. Malaria, Tuberculosis, and Dengue are caused by different pathogens and have distinct symptoms and treatment methods.

Explanation

Giardiasis is a gastrointestinal infection caused by the parasite Giardia lamblia. Symptoms include diarrhea, abdominal cramps, bloating, and nausea. Malaria, Tuberculosis, and Dengue are caused by different pathogens and have distinct symptoms and treatment methods.

12. How is the disease transmitted?

Transmitted via the fecal-oral route by contaminated water or food

Transmitted through the air by respiratory droplets.

Transmitted by insect vectors such as mosquitos or ticks.

Transmitted through direct contact with an infected person's blood or bodily fluids.

The correct answer specifies that the disease is transmitted through the fecal-oral route by contaminated water or food, not through the air, direct contact with bodily fluids, or insect vectors.

Explanation

The correct answer specifies that the disease is transmitted through the fecal-oral route by contaminated water or food, not through the air, direct contact with bodily fluids, or insect vectors.

13. Identify the body system most commonly affected by infection in the small intestine resulting in malnutrition.

Nervous system

Skeletal system

Infection in small intestineCan cause malnutrition

Cardiovascular system

Infection in the small intestine leading to malnutrition primarily affects the digestive system, hindering the proper absorption of nutrients from food.

Explanation

Infection in the small intestine leading to malnutrition primarily affects the digestive system, hindering the proper absorption of nutrients from food.