1
Question
Pollen grain has a prominent two layered wall. The inner wall
Pollen grain has a prominent two layered wall. The inner wall
Open in App
Solution
The correct option is C Both A and B
Pollen grain
The pollen grains are haploid cells that represent the male gametophyte because the male gametes are formed from them.
Wall of pollen grain
Wall of pollen grains is made up of two layers :
Exine
Intine
Exine
Exine is the outer layer, composed of sporopollenin which makes it resistant to enzymes, acids and high temperature.
Intine
Intine is the thin and uniform inner layer, which is composed of pectin and cellulose. It can be easily degraded by enzymes, acids and high temperature.
Final answer
(d) Both A and B
Pollen grain
The pollen grains are haploid cells that represent the male gametophyte because the male gametes are formed from them.
Wall of pollen grain
Wall of pollen grains is made up of two layers :
Exine
Intine
Exine
Exine is the outer layer, composed of sporopollenin which makes it resistant to enzymes, acids and high temperature.
Intine
Intine is the thin and uniform inner layer, which is composed of pectin and cellulose. It can be easily degraded by enzymes, acids and high temperature.
Final answer
(d) Both A and B
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
