Question

The shape of guard cell in common is -

• A. Liver-shaped
• B. Heart-shaped
• C. Kidney-shaped
• D. Stomach-shaped

Answer 1

The correct option is C

Kidney-shaped

The correct option is C.

Explanation of the correct option :

1. The stomata are epidermal cells that consist of two kidney-shaped cells known as guard cells and have a pore in the center.
2. From the outside, guard cells are crescent-shaped or kidney-shaped, with wall material on both the top and lower sides.
3. All guard cells, whether in monocots or dicots, feature a stomatal complex with kidney-shaped guard cells in dicots and dumbbell-shaped guard cells with subsidiary cells attached in monocots.

Explanation of the incorrect option :

Option A:

1. The liver-shaped stomata do not exist as the guard cells are kidney-shaped.

Option B:

1. The stomata are kidney-shaped, not heart-shaped.

Option D:

1. The stomata are commonly kidney-shaped. The stomach-shaped guard cells do not exist.

Final answer: The shape of the guard cell in common is -Kidney-shaped