Biology Practice Question and Answer
8 Q: What is the pH of blood of a normal person?
1035 05f746f59bb26e87e5eeaee43
5f746f59bb26e87e5eeaee43- 14.5—4.6false
- 26.45—6.55false
- 37.35—7.45true
- 48.25—8.35false
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Answer : 3. "7.35—7.45"
Q: Deficiency of which of these vitamins causes anaemia in humans?
1033 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: How do most insects respire?
1032 06111093cd3ab8c0743d13cd6
6111093cd3ab8c0743d13cd6- 1skinfalse
- 2from cleomefalse
- 3from the lungsfalse
- 4from the nervous systemtrue
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Answer : 4. "from the nervous system"
Q: Camel is a desert animal, that can live without water for many days, because
1031 06389c7a99ebad6607b7fb3ef
6389c7a99ebad6607b7fb3ef- 1it does not need waterfalse
- 2water is formed in the body due to oxidation of fatfalse
- 3it has the water sac in the walls of the lumen of stomachfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Q: Who invented penicillin?
1029 061110ca7a7cc2a2d996fb8dd
61110ca7a7cc2a2d996fb8dd- 1Ian Flemingfalse
- 2Alexander Flemingtrue
- 3Stephen Hawkingfalse
- 4Alexanderfalse
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Answer : 2. "Alexander Fleming"
Q: Starch and sugar in our food are forms of _____.
1029 064c22ce196ae1f4842ff082d
64c22ce196ae1f4842ff082d- 1Proteinsfalse
- 2fatsfalse
- 3vitaminsfalse
- 4carbohydratestrue
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Answer : 4. "carbohydrates"
Explanation :
1. Starch and sugar found in our food are forms of carbohydrates. Carbohydrates are an important part of our diet. They provide energy to the body and are essential for other body functions.
2. Starch is a complex carbohydrate found in plants. It is found in wheat, rice, potatoes, and other grains. Starch is used to thicken food, make sugar, and make other foods.
Q: Which of the following is not a simple tissue?
1028 060fa7ed402c28207149aa2c8
60fa7ed402c28207149aa2c8- 1Xylemtrue
- 2Parrenchymafalse
- 3Collenchymafalse
- 4Sclerenchymafalse
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Answer : 1. "Xylem"
Q: Tissues are made in the body?
1028 061110b7bf65c04691be9d057
61110b7bf65c04691be9d057- 1from fatfalse
- 2Carbohydratesfalse
- 3proteintrue
- 4Vitaminfalse
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