Human Health and Diseases — Practice Quiz
Maharashtra Board · Class 12 · Biology
Try a 4-question quiz on Human Health and Diseases for Maharashtra Board Class 12 Biology: tap an answer to check it and see why.
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What is the full form of WHO?
Which type of immunity is present from birth?
Which mosquito transmits malaria?
What causes AIDS?
Sample Questions
Which components are present in the structure of an antibody?
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Heavy chains, Light chains, Variable regions, Constant regions
An antibody has a Y-shaped structure with two heavy chains and two light chains. Each chain has variable and constant regions. Variable regions form the antigen-binding sites.
Blood group AB is called universal acceptor because:
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It has no antibodies in plasma
AB blood group individuals have both A and B antigens on RBCs but no antibodies (anti-a or anti-b) in plasma, so they can receive blood from any ABO group.
Which pathogen causes typhoid?
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Salmonella typhi
Typhoid is caused by Salmonella typhi, a Gram-negative bacteria. It causes acute infection of the intestine with prolonged fever.
Which cells produce antibodies?
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Plasma cells
Plasma cells are formed from activated B-lymphocytes and produce antibodies at an extremely rapid rate of about 2000 molecules per second.
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