Draw a labelled diagram of the sectional view of a mature pollen grain of angiopserms.Explain the function of any two of its parts

cbse
sexualreproduction

#1

Draw a labelled diagram of the sectional view of a mature pollen grain of angiopserms.Explain the function of any two of its parts.
or
Draw a labelled diagram of a mature pollen grain.


#2

Exine : It can withstand high temperature/strong acids/alkali.
Intine : It is a thin and continuous layer made up of cellulose and pectin.
Vegetative Cell : It is bigger and has abundant food reserve.
Generative Cell : It divides mitotically to give rise to two male gametes.