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Assertion : Exine of a pollen grain is m...

Assertion : Exine of a pollen grain is made up of sporopollenin which is resistant to high temperature, strong acid or alkali as well as enzymatic degradation.
Reason : Sporopollenin is absent in the region of germ pores.

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Name the outer hard covering of pollen grains made up of sporopollenin.

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In pollen grains where sporopollenin is absent called germ pore.

In pollen grains where sporopollenin is absent called germ pore.

The exine of pollen grain is made up of .........and has germ pores :-

The exine of pollen grain is made up of .........and has germ pores :-

Assertion :- Pollen grainscan withstandhigh temperature and strong acids and alkali. Reason-Theirnnehrarldayeirn tinisemaduep of sporopollenin

Assertion :- Pollen grains can withstand high temperature and strong acids and alkali. Reason-Their inner layer intine is made up of sporopollenin