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(a) Name the organic material exine of the pollen grain is made up of. How is the material advantageous to pollen grain?

(b) Still it is observed that it does not form a continous layer around the pollen grain. Give reason.

(c) How are 'pollen banks' useful?

 

 

 

 
 
 
 
 

Answers (1)

(a) Sporopollein is the organic material exine of the pollen grain is made up of. This material is advantegous to pollen grain as it is the most resistant to high temperature,

(b) (Germs pores) to allow pollen tube to emerge out pollen germination.

(c) Helps in storing pollen grains for years / for crop breeding programme.

Posted by

Priyanka Kumari

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