Exercise 1

Question 36 :

Most of the red, blue and purple colours of plants are due to a pigment called

A). anthocyanin
B). carotene
C). chlorophyll
D). xanthophylls
Answer : Option A

Explanation :

Anthocyanin - A blue, violet, or red flavonoid pigment found in plants.

Question 37 :

Plants developing in dry conditions are

A). xerophytes
B). mesophytes
C). lithophytes
D). hydrophytes
Answer : Option A

Question 38 :

Plants growing on sand are called as

A). chasmophytes
B). oxylophytes
C). lithophytes
D). psammophytes
Answer : Option D

Question 39 :

Our skin, when exposed to excess sunlight, becomes dark. This is because our skin pigments called

A). flavoxanthin
B). melanin
C). carotene
D). Xanthophyll
Answer : Option B

Question 40 :

Ramapithecus and Cro-Magnon man are considered

A). ancestors of modern man
B). ancestors of monkey
C). ancestors of lion
D). None of the above
Answer : Option A