Question

If we intend to observe stomata in a temporary stained mount of leaf peel, the leaf should taken preferably from a plant growing in

• A. In shade.
• B. In sunlight.
• C. In water.
• D. In dark room.

Answer 1

The correct option is B

In sunlight.

The correct option is B.

Explanation of the correct option:

• The leaf should be taken from the plants growing in the sunlight to observe the stomata through the temporary mounting of the peel.
• In sunlight, the stomata are opened, allowing the movement of gases to perform photosynthesis. The carbon dioxide moves in while the oxygen moves out of the plant.

Explanation of the incorrect options:

Option A:

• The stomata will remain closed in the shade, which will not allow the proper observation of stomata.

Option C:

• The plants that grow in water may or may not have stomata, and if present, they are found only on the upper leaf surface.

Option D:

• The stomata do not open in plants growing the darkroom as they do not get sunlight, so leaves cannot be taken from these plants for observing stomata.

Therefore, the leaf is taken from the plant growing in sunlight to observe stomata through the temporary leaf mounting.