NEET 2007 Biology question

In gymnosperms, the pollen chamber represents:

(1)the microsporangium in which pollen grains develop
(2)a cell in the pollen grain in which the sperms formed
(3)a cavity in the ovule in which pollen grains are stored after pollinationCorrect
(4)an opening in the mega gametophyte through which the pollen tube approaches the egg.

Answer: (3)

Solution

In gymnosperms such as Cycas and Pinus, after pollination the pollen grains are drawn through the micropyle into the ovule. Some cells of the nucellus below the micropylar beak disintegrate to form a cavity, the pollen chamber, in which pollen grains are received and

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Question ID VK-089750