Question

Under the high power of a microscope, a well-stained leaf peel mount shows nuclei in

• A. only guard cells.
• B. only epidermal cells.
• C. guard cells and epidermal cells both
• D. guard cells, epidermal cells and stoma.

Answer 1

The correct option is C

guard cells and epidermal cells both

The correct option is C.

An explanation for the correct option:

• Each stoma is surrounded by guard cells. By opening and shutting the stomata, they help regulate the rate of transpiration.
• Stomata, guard cells, and epidermal cells can all be found on the leaf peel. Both epidermal and guard cells have nuclei, whereas stomata don't have any.

The explanation for the incorrect options:

Option A:

• In guard cells, the nuclei are positioned in the center. With the opening and shutting of the stoma, they have been demonstrated to vary their general form. The nuclei are also present in epidermal cells.

Option B:

• The cell's lens-shaped nucleus is typical of onion epidermis nuclei. Between the central vacuole and the cell wall, it is compressed. The nuclei are also present in guard cells.

Option D:

• The stoma does not have a nucleus.

Therefore, a well-stained leaf peel mount shows nuclei in guard cells and epidermal cells under the high power of a microscope.