Biology Practice Question and Answer
8 Q: Deficiency of which of these vitamins causes anaemia in humans?
480 06491a2a3cae316dfef688b29
6491a2a3cae316dfef688b29- 1Vitamin Cfalse
- 2Vitamin Bfalse
- 3Vitamin Afalse
- 4Vitamin B12true
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Answer : 4. "Vitamin B12"
Explanation :
1. Anemia in humans is caused by a deficiency of Vitamin B12.
2. Vitamin B12 is a water-soluble vitamin
3. Which is necessary for the formation of red blood cells?
4. The most common cause of anaemia is low iron levels in the body. This type of anaemia is called iron deficiency anaemia.
Q: Which one is the first heart sound?
479 063c8f9eb8731ac33279f097b
63c8f9eb8731ac33279f097b- 1Lub during closure semilunar valvesfalse
- 2Lub during closure of atrio-ventricular valvestrue
- 3Dub during closure of atrio- ventricular valvesfalse
- 4Dub during closure of semilunarvalevesfalse
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Answer : 2. "Lub during closure of atrio-ventricular valves"
Q: Which of the following enzymes is found in saliva of human body which breaks down starch into simple sugar?
478 0641975a167ad957a978915b3
641975a167ad957a978915b3- 1Amylasetrue
- 2Trypsinfalse
- 3Pepsinfalse
- 4Reninfalse
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Answer : 1. "Amylase "
Q: Which of the following is a correct match?
476 063cfc2cb0d9e560db8e69d3f
63cfc2cb0d9e560db8e69d3f- 1Down's syndrome - 21st chromosometrue
- 2Sickle-cell anaemia - X-chromosomefalse
- 3Haemophilia - Y- chromosomefalse
- 4Parkinson's - X and Y-chromosomefalse
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Answer : 1. "Down's syndrome - 21st chromosome "
Q: Which one of the following vitamins is essential for coagulation of blood?
474 06389bbea34f83f147273f3b0
6389bbea34f83f147273f3b0- 1Vitamin Afalse
- 2Vitamin B12false
- 3Vitamin Ktrue
- 4Vitamin Dfalse
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Answer : 3. "Vitamin K"
Q: Which of the following are also called the amphibians of the plant kingdom?
472 0642429935bff3d098d10dec3
642429935bff3d098d10dec3- 1Pteridophytesfalse
- 2Thallophytesfalse
- 3Angiospermsfalse
- 4Bryophytestrue
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Answer : 4. "Bryophytes"
Q: Which of the following mammalian organisms is not a common source of fibre?
471 06576f163e367ac7b2ea394d7
6576f163e367ac7b2ea394d7- 1zebratrue
- 2Embers Goatfalse
- 3Llamafalse
- 4Alpacafalse
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Answer : 1. "zebra"
Explanation :
Mammals are a common source of fibre.
1. Embers Goat
3. Llama
4. Alpaca
Q: A/an ______ is any substance that causes your immune system to produce antibodies against it.
471 0644be2dc244f7ecdff5f7a7c
644be2dc244f7ecdff5f7a7c- 1proteinfalse
- 2glucosefalse
- 3plateletfalse
- 4antigentrue
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