Which of the following tissues is not found in the stem and root of monocotyledons?
- Xylem
-
Cambium
- Pith
- Cortex
- Pericycle
The correct answer is: B
Explanation
The correct answer is B. Cambium.
In monocotyledons (monocots), the stem and root do not have a cambium layer. Cambium is a type of meristematic tissue that is responsible for secondary growth, allowing the stem and root to increase in diameter. Monocots, however, do not undergo secondary growth like dicotyledons (dicots) do.
The other options are all tissues that can be found in the stem and root of monocotyledons:
- Xylem (A) is a type of vascular tissue that transports water and minerals.
- Pith (C) is a type of ground tissue that is found in the center of the stem.
- Cortex (D) is a type of ground tissue that is found in the outer layer of the stem and root.
- Pericycle (E) is a type of tissue that is found in the outer layer of the root.