Daily Science Test 9

The correct answer is "ট্যানিক এসিড".

Dimitri Ivanovsky is credited with the discovery of viruses. He was a Russian biologist and is known for his work on tobacco mosaic disease, where he first observed the presence of an infectious agent that was smaller than bacteria. This agent was later identified as a virus. Ivanovsky's discovery laid the foundation for the field of virology and his work greatly contributed to our understanding of viruses and their role in causing diseases.

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The question asks for the first discovered virus among the given options. Among the options, "টোবাকো মোজাইক ভাইরাস" (Tobacco mosaic virus) is the correct answer as it was the first virus to be discovered. It was identified in 1892 by Dmitri Ivanovsky, a Russian botanist, who noticed that a disease affecting tobacco plants was caused by an infectious agent that was smaller than bacteria. This discovery marked the beginning of virology as a scientific discipline.

গনোরিয়া হল একটি যৌনসংক্রমণী রোগ, যা ব্যক্তির যৌন সংক্রমণের ফলে হয়। এটি বায়ুবাহিত রোগ নয়, এটি শুধুমাত্র যৌন যৌন সংক্রমণের মাধ্যমে ছড়ানো হয়।

আমলকি সবচেয়ে বেশি ভিটামিন সি সমৃদ্ধ ফল।

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The correct answer is "ভিটামিন B12 অপর নাম পাইরিডক্সিন". This is the incorrect statement because the alternative name for Vitamin B12 is "কবালামিন" (Cobalamin) and not "পাইরিডক্সিন" (Pyridoxine).

A deficiency of vitamin D can lead to a condition called osteomalacia, which is characterized by softening and weakening of the bones. This condition can cause bone pain, muscle weakness, and an increased risk of fractures. Therefore, the correct answer is vitamin D.

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Polio is not included in the DPT vaccine. The DPT vaccine is a combination vaccine that protects against diphtheria, pertussis (whooping cough), and tetanus. Polio is a separate vaccine that is usually given as part of the routine childhood immunization schedule. Therefore, polio is the correct answer as it is not included in the DPT vaccine.

The answer states that the daily energy requirement of an adult person is approximately 2500-3000 kilocalories. This means that an adult person needs to consume between 2500 and 3000 kilocalories of energy per day to meet their daily energy needs.

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Having a higher level of HDL (high-density lipoprotein) in the blood is considered beneficial because HDL helps to remove LDL (low-density lipoprotein), commonly known as "bad" cholesterol, from the bloodstream. LDL is associated with an increased risk of heart disease, while HDL is associated with a decreased risk. Therefore, having a higher level of HDL and a lower level of LDL is considered ideal for maintaining cardiovascular health.

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Vitamin K is not an antioxidant. Antioxidants are substances that help protect the body from damage caused by harmful molecules called free radicals. Vitamin K, on the other hand, is essential for blood clotting and bone health. It plays a key role in the production of proteins that are involved in blood clotting and also helps in the metabolism of calcium, which is important for maintaining strong and healthy bones.

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The correct answer is "ক্যাসিমির ফাংক" (Casimir Funk). Casimir Funk was a Polish biochemist who is credited with discovering the first vitamin, which he called "vitamine" (later known as vitamin). He made this discovery while studying the causes of beriberi, a disease caused by vitamin B1 deficiency. Funk's research on vitamins laid the foundation for the field of nutritional science.

When there is a deficiency of potassium in the body, it can lead to vomiting (বমি হলে). Therefore, the correct answer is পটাশিয়াম (potassium).

Rhinovirus is the correct answer because it is the most common cause of the common cold. Rhinoviruses are a type of virus that infects the upper respiratory tract and can cause symptoms such as sneezing, runny nose, and cough. They are highly contagious and can spread easily from person to person. While other viruses like adenovirus, influenza virus, and coronavirus can also cause respiratory symptoms, rhinovirus is specifically associated with the common cold.

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Charles Louis Alphonse Laveran discovered the parasite of malaria. He was a French physician and won the Nobel Prize in Physiology or Medicine in 1907 for his discoveries of the life cycle of malaria parasites in human blood and the transmission of the disease by mosquitoes. His work paved the way for understanding the cause and transmission of malaria, leading to the development of effective treatments and preventive measures.

The correct answer is "মাইকোফায" because the term "মাইকোফায" refers to a type of fungus that attacks or parasitizes other organisms, including viruses. It is a biological control agent that can be used to control plant diseases caused by viruses.

The correct answer is "নিউক্লিয়োক্যাপসিড". In virology, a nucleocapsid refers to the protein shell that encloses the viral genome. It is composed of capsid proteins and protects the genetic material of the virus. A virus that lacks an envelope and is unable to infect cells directly is called a nucleocapsid virus. Therefore, "নিউক্লিয়োক্যাপসিড" is the correct term to describe a non-enveloped virus.

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In 1998, the Nipah virus was first identified in Malaysia. This virus caused an outbreak of respiratory illness in pigs, which then spread to humans. The Nipah virus is transmitted through contact with infected animals or consumption of contaminated food. It can cause severe illness in humans, including fever, headache, respiratory problems, and encephalitis. The identification of the Nipah virus in Malaysia in 1998 was a significant milestone in understanding and studying this emerging infectious disease.

The correct answer is "অ্যারেনবার্গ". This answer is correct because it is the name of a scientist who named bacteria.

The correct answer is ১৩ টি. This is because the question asks for the number of necessary vitamins for human development. Out of the given options, ১৩ টি is the closest number to the recommended daily intake of essential vitamins for a healthy individual.

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Iodine deficiency during pregnancy can lead to complications such as miscarriage, stillbirth, or congenital abnormalities in the baby. Iodine is essential for the production of thyroid hormones, which are crucial for the development of the baby's brain and nervous system. Therefore, a lack of iodine can result in fetal complexity.

Vitamin B6 helps in the production of hemoglobin, which is an important component of red blood cells. Hemoglobin is responsible for carrying oxygen from the lungs to the rest of the body. Therefore, a deficiency of vitamin B6 can lead to a decrease in hemoglobin production, resulting in a condition called anemia.