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The inner wall of a pollen grain, the *intine*, is composed of:

ACellulose and pectin
BSporopollenin
CLignin
DSuberin
Answer & Solution
Correct answer: A. Cellulose and pectin
The **intine** (inner wall) is a thin, continuous layer of **cellulose and pectin**. The exine (outer) is sporopollenin with germ pores.
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