Biology - Questions (Section-1)
7Most fish do not sink in water because of the presence of swim bladderair bladderair sacsair in spongy bones
A. I and II are correctB. II and III are correct
C. III and IV are correct D. I, II, III and IV are correct
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8One of the following is not a function of bones.
A. Place for muscle attachmentB. Protection of vital organs
C. Secretion of hormones for calcium regulation in blood and bones D. Production of blood corpuscles
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9Out 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 conifersB. only angiosperms
C. only conifers D. angiosperms and all gymnosperms except conifers
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10Photosynthesis generally takes place in which parts of the plant?
A. Leaf and other chloroplast bearing partsB. stem and leaf
C. Roots and chloroplast bearing parts D. Bark and leaf
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11Plants absorb dissolved nitrates from soil and convert them into
A. free nitrogenB. urea
C. ammonia D. proteins
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12Plants synthesis protein from
A. starchB. sugar
C. amino acids D. fatty acids
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