Question

The pollen chambers present in gymnosperms represent

• A. The microsporangium in which pollen grains develop.
• B. An opening in the megagametophyte through which pollen tube approaches the egg.
• C. A cavity in the ovule in which pollen grains are stored after pollination
• D. A cell in the pollen grain in which sperms are formed

Answer 1

The correct option is C

A cavity in the ovule in which pollen grains are stored after pollination

The correct option is C.

Explanation of the correct option:

1. In gymnosperms, pollen chambers are the part that is responsible for the storage of pollen grains after pollination.
2. This is because gymnosperms do not produce fruits to cover their seeds.
3. This is a cavity at the tip of the ovule lying under the integuments.
4. When the plant matures and these cavities swell open, releasing the pollen grains for pollination to take place.

Explanation of the incorrect options:

Option A:

The microsporangium is the structure within the anther in which pollen grains develop.

Option B:

An opening in the megagametophyte through which the pollen tube approaches the egg is known as the Filiform apparatus.

Option D:

A cell in the pollen grain in which sperms are formed is known as a generative cell.

Final answer: The pollen chambers present in gymnosperms represent a cavity in the ovule in which pollen grains are stored after pollination.