biology general knowledge questions

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7. Photosynthesis generally takes place in which parts of the plant?
A. Leaf and other chloroplast bearing parts
B. steam and leaf
C. Roots and chloroplast bearing parts
D. Bark and leaf

Answer: Option A

Explanation:

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8. Most fish do not sink in water because of the presence of

  1. swim bladder
  2. air bladder
  3. air sacs
  4. air in spongy bones
A. I and II are correct
B. II and III are correct
C. III and IV are correct
D. I, II, III and IV are correct

Answer: Option A

Explanation:

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9. Plants synthesis protein from
A. starch
B. sugar
C. amino acids
D. fatty acids

Answer: Option C

Explanation:

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10. Plants absorb dissolved nitrates from soil and convert them into
A. free nitrogen
B. urea
C. ammonia
D. proteins

Answer: Option A

Explanation:

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11. Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with
A. all gymnosperms, except conifers
B. only angiosperms
C. only conifers
D. angiosperms and all gymnosperms except conifers

Answer: Option C

Explanation:

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12. One of the following is not a function of bones.
A. Place for muscle attachment
B. Protection of vital organs
C. Secretion of hormones for calcium regulation in blood and bones
D. Production of blood corpuscles

Answer: Option C

Explanation:

No answer description available for this question
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