Question

Intine layer of pollen grain is made up of

• A. Inner cellulose, outer pectin
• B. Outer cellulose, inner pectin
• C. Only with cellulose
• D. Only with pectin

Answer 1

The correct option is A Inner cellulose, outer pectin

• Pollen grains are a mass of microspores in a seeded plant which appears in the form of fine dust.
• Each pollen grain is a minute body with varying shape and structure which are formed in the anthers of angiosperms.
• It consists of two layers:-

1) Intine or inside layer is a thin and continuous layer made of cellulose or hemicellulose and pectin.

2) Exine or outer layer a highly decay-resistant chemical called sporopollenin.