Recent questions tagged biology

Name the stage of Plasmodium that is transmitted to human body by the vector. Describe the life cycle of the parasite in humans.

asked Apr 14, 2019 by priyanka.clay6

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Name the cells HIV attacks first when it gains entry into a human body. How does this virus replicate further to cause immunodeficiency in the body? OR A woman has tested positive for AIDS. Name the pathogen that infected her. How does the pathogen weaken her immune system?

asked Apr 14, 2019 by priyanka.clay6

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Name the different types of cells that are responsible for producing the acquired immune response in a human body. How do these cells respond when a pathogen enters the body?

asked Apr 14, 2019 by priyanka.clay6

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A patient showed symptoms of sustained high fever, stomach pain and constipation, but no blood clot in stools. Name the disease and its pathogen. Write the diagnostic test for the disease. How does the disease get transmitted?

asked Apr 14, 2019 by priyanka.clay6

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How does a vaccine for a particular disease immunise the human body against that disease?

asked Apr 14, 2019 by priyanka.clay6

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Write the events that take place when a vaccine for any disease is introduced into the human body.

asked Apr 14, 2019 by priyanka.clay6

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A person suffers from dry, scaly lesions on his skin, nails and scalp which is accompanied by intense itching. i. What is the disease he is suffering from ? ii. How would he have contracted the disease?

asked Apr 14, 2019 by priyanka.clay6

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Classify the following drugs into their respective groups Smack, Hashish, Heroin and Charas

asked Apr 14, 2019 by priyanka.clay6

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Complete the following. a. TB : Airborne :: Malaria : --------- b. Colostrum : Passive immunity :: Vaccine : -----------

asked Apr 14, 2019 by priyanka.clay6

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Why should one take an immuno suppressants agent all through his life after an organ transplantation?

asked Apr 14, 2019 by priyanka.clay6

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Chewing of Tobacco causes increase in blood pressure. Justify.

asked Apr 14, 2019 by priyanka.clay6

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Why do sports persons often fall victims to Cocaine addiction?

asked Apr 14, 2019 by priyanka.clay6

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A person suffering from Elephantiasis has an abnormally increased swelling in his lower limbs. What could be the reason for the swelling?

asked Apr 14, 2019 by priyanka.clay6

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What would happen to the immune system, if thymus gland is removed from the body of a person?

asked Apr 14, 2019 by priyanka.clay6

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Given below are the pathogens and the diseases caused by them. Which out of these pairs is not correct matching pair and why ? a. Wuchereria : Filariasis b. Microsporum : Ringworm c. Salmonella : Common Cold d. Plasmodium : Malaria

asked Apr 14, 2019 by priyanka.clay6

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A person has developed allergic reactions like sneezing, watery eyes, running nose and difficulty in breathing. What could be the reason for these symptoms? How can it be controlled?

asked Apr 14, 2019 by priyanka.clay6

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Why do children of metro cities of India suffer from allergies and asthma?

asked Apr 14, 2019 by priyanka.clay6

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Name the missing organisms/ diseases in the table given below.

asked Apr 14, 2019 by priyanka.clay6

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A group of viruses infect only nose and the respiratory passage but not the lungs. Mention the disease and its causative organism.

asked Apr 14, 2019 by priyanka.clay6

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Gloriosa superba is a good example of

asked Apr 14, 2019 by josekuttihsr

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What is the role of histamines in inflammatory response? Name few drugs which reduces the symptoms of allergy.

asked Apr 14, 2019 by priyanka.clay6

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What is the role of lymph nodes in our immune response ?

asked Apr 14, 2019 by priyanka.clay6

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Where are T cells and B cells formed? How do they differ from each other?

asked Apr 14, 2019 by priyanka.clay6

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Name the disease that is caused due to abnormal increase in Lymphocytes of blood.

asked Apr 14, 2019 by priyanka.clay6

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Which day is observed as World AIDS Day?

asked Apr 14, 2019 by priyanka.clay6

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Expand NACO

asked Apr 14, 2019 by priyanka.clay6

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Against which diseases does the MMR vaccine give protection ?

asked Apr 14, 2019 by priyanka.clay6

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Why is it organ transplantation always done between very close relatives?

asked Apr 14, 2019 by priyanka.clay6

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All human beings have Proto oncogenes. But all of them do not suffer from cancer. Why?

asked Apr 14, 2019 by priyanka.clay6

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Why is secondary immune response more intense than the primary immune response in humans.

asked Apr 14, 2019 by priyanka.clay6

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It was diagnosed by a specialist that the immune system of the body of a patient has been suppressed. Name the disease the patient is suffering from and its causative agent.

asked Apr 14, 2019 by priyanka.clay6

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How do virus-infected cells provide innate immunity to healthy cells?

asked Apr 14, 2019 by priyanka.clay6

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What causes swelling of the lower limbs in patients suffering from filariasis?

asked Apr 14, 2019 by priyanka.clay6

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What role do macrophages play in providing immunity to humans ?

asked Apr 14, 2019 by priyanka.clay6

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What type of virus causes AIDS? Name its genetic material.

asked Apr 14, 2019 by priyanka.clay6

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Some allergens trigger sneezing and wheezing in human beings. What causes this type of response by the body?

asked Apr 14, 2019 by priyanka.clay6

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How do interferons protect us?

asked Apr 14, 2019 by priyanka.clay6

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State the function of mast cells in allergic response.

asked Apr 14, 2019 by priyanka.clay6

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When does a human body elicit an anamnestic response ?

asked Apr 14, 2019 by priyanka.clay6

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What is the reason of shivering in malarial patient ?

asked Apr 14, 2019 by priyanka.clay6

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Which microorganism is used to produce hepatitis B Vaccine ?

asked Apr 14, 2019 by priyanka.clay6

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Name the two major groups of cells required to attain specific immunity.

asked Apr 14, 2019 by priyanka.clay6

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A person's nails and lips turn grey to bluish. Find out the disease he is suffering from. Name the pathogen.

asked Apr 14, 2019 by priyanka.clay6

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Name the pathogen that causes malignant malaria.

asked Apr 14, 2019 by priyanka.clay6

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Breast fed babies have greater immunity than bottle fed babies. Why?

asked Apr 14, 2019 by priyanka.clay6

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Name the vector that spreads Chikungunya.

asked Apr 14, 2019 by priyanka.clay6

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Name the confirmatory test for typhoid ?

asked Apr 14, 2019 by priyanka.clay6

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a.Name the primates that lived about 15 million years ago. List their characteristic features. b. Where was the first man-like animal found? c. Write the order in which Neanderthals, habilis and erectus appeared on the earth. State the brain capacity of each one of them. d. When did modern sapiens appear on this planet?

asked Apr 14, 2019 by priyanka.clay6

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How does Hardy-Weinberg equation explain genetic equilibrium ? Describe how this equilibrium gets disturbed which may lead to founder effect.

asked Apr 14, 2019 by priyanka.clay6

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Explain taking one example of vertebrate anatomy that evolution of life has occurred on earth. 'Nature selects for fitness'. Explain with suitable example.

asked Apr 14, 2019 by priyanka.clay6

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