Question

23. Name the organic chemical present in intine of pollen grains.:
24. Name the large cell of a mature pollen grain.
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Answer 1

Answer:

• The intine, or inner layer, consists primarily of cellulose and pectins. The exine, or outer layer, is composed of a highly decay-resistant chemical called sporopollenin. The exine usually has one or more thin areas, or pores, through which the pollen tubes…
• Mature pollen grains contain two cells: Explanation: a generative cell and a pollen tube cell. The generative cell is contained within the larger pollen tube cell

Explanation:

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Answer 2

Answer:

23) The intine,or inner layer consists primarily of cellulose and pectin.

24) The mature pollen grain consists of 2 cells : generative cells and vegetative cells. Vegetative cell is the large cell with irregular nucleus and contain food reserves.

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