Biology Questions Practice Question and Answer
8 Q: An enzyme produced by HIV that allows the integration of HIV DNA into the host cell’s DNA is:
1218 0607ec5640372d8542895add5
607ec5640372d8542895add5- 1Integrasetrue
- 2Ligasefalse
- 3DNA gyrasefalse
- 4Helicasefalse
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Answer : 1. "Integrase"
Q: What is the osmolarity(in mO smolL–1) in the outer cortex and inner medullary region?
1218 063c8fa49bd6d90332092c5a3
63c8fa49bd6d90332092c5a3- 1300 and 900 respectivelyfalse
- 2600 and 300 respectivelyfalse
- 31200 and 300 respectivelyfalse
- 4300 and 1200 respectivelytrue
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Answer : 4. "300 and 1200 respectively"
Q: Which of the following is not a major component of the food?
1215 063c7cd998731ac33279b2244
63c7cd998731ac33279b2244- 1Carbohydratesfalse
- 2proteinsfalse
- 3Vitaminstrue
- 4Fatsfalse
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Answer : 3. "Vitamins"
Q: In biological terms, _______ is a relationship between two organisms in which one organism benefits and the other is unaffected.
1212 062bec68925fd051a656575ba
62bec68925fd051a656575ba- 1Parasitismfalse
- 2Mutualismfalse
- 3Amensalismfalse
- 4Commensalismtrue
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Answer : 4. "Commensalism"
Q: Which organ stores fat soluble vitamins?
1210 062f32f063342ab11843748f6
62f32f063342ab11843748f6- 1Bloodfalse
- 2Skinfalse
- 3Livertrue
- 4Pancreasfalse
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Answer : 3. "Liver"
Q: Which of the following factors is responsible for the disease called 'Mad Hatter's Disease'?
1207 064a2b182d19ae0083334a44d
64a2b182d19ae0083334a44d- 1Inhalation of iron dustfalse
- 2Inhaling silica dustfalse
- 3Mercury poisoningtrue
- 4Vitamin-D deficiencyfalse
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Answer : 3. "Mercury poisoning"
Explanation :
1. Mercury poisoning is responsible for which of the following diseases called 'Mad Hatter's Disease'?
2. Mad Hatter's Disease is a form of mercury poisoning that affects the brain and nervous system.
3. There is a risk of mental and behavioural changes, such as confusion, hallucination, and irritability etc. in this disease.
Q: Which of the following enzymes is found in saliva of human body which breaks down starch into simple sugar?
1193 0641975a167ad957a978915b3
641975a167ad957a978915b3- 1Amylasetrue
- 2Trypsinfalse
- 3Pepsinfalse
- 4Reninfalse
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Answer : 1. "Amylase "
Q: Quinine medicine is used?
1192 0603635e824cd273bc4f0afee
603635e824cd273bc4f0afee- 1Cholerafalse
- 2jaundicefalse
- 3Malariatrue
- 4All of thesefalse
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