100 Best Biology MCQ

Q57). Photosynthesis generally takes place in which parts of the plant?

a).Leaf and other chloroplast bearing parts
b).stem and leaf
c).Roots and chloroplast bearing parts
d).Bark and leaf

Correct Answer:
Leaf and other chloroplast bearing parts
Explaination:

Q58). Most fish do not sink in water because of the presence of

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

Correct Answer:
I and II are correct
Explaination:

Q59). Plants synthesis protein from

a).starch
b).sugar
c).amino acids
d).fatty acids

Correct Answer:
amino acids
Explaination:

Q60). Plants absorb dissolved nitrates from soil and convert them into

a).free nitrogen
b).urea
c).ammonia
d).proteins

Correct Answer:
free nitrogen
Explaination:

Q61). 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

Correct Answer:
only conifers
Explaination:

Q62). 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

Correct Answer:
Secretion of hormones for calcium regulation in blood and bones
Explaination:

Q63). Plants absorb most part of water needed by them through their

a).embryonic zone
b).growing point
c).root hairs
d).zone of elongation

Correct Answer:
root hairs
Explaination:

Q64). Photo-oxidation is

a).photorespiration
b).photolysis
c).light and oxygen induced breakdown
d).All of the above

Correct Answer:
All of the above
Explaination: