Question

2. Outer wall of pollen grain is made up of
a. sporopollenin
b. pectocellulose
c. protein
d. lipids​

Answer 1

Answer ❤️

a) sporopollenin

because:

Sporopollenin is a major component of the tough outer walls of plant spores and pollen grains. It is chemically Very stable.

So, the correct answer is “Sporopollenin”.

hope help you

Answer 2

Answer:

exine

The most striking feature of the pollen grain is the tough, resistant outer coat termed the exine which is often elaborately sculptured.