The thin and continuous wall layer of pollen is

The innermost wall layer of pollen sac is tapetum. Its functions is in

The innermost wall layer of pollen sac is tapetum. Its function is in

The two major wall layers of pollen grain are____.

What are the chemical components that make up the wall layers of pollen grains ?

The function of innermost layer of pollen sac, tapetum is

The function of innermost layer of pollen sac, tapetum is

The function of innermost layer of pollen sac, tapetum is

(a) Name the organic material exine of the pollen grain is made up of. How is this material advantageous to pollen grain ? (b) Still it is observed that it does not form a continuous layer around the pollen grain. Give reason. (c) How are 'pollen banks' useful ?

(a) Name the organic material exine of the pollen grain is made up of. How is this material advantageous to pollen grain ? (b) Still it is observed that it does not form a continuous layer around the pollen grain. Give reason. (c) How are 'pollen banks' useful ?