Question

Interfascicular cambium develops from the cells of ______________.

• A. endodermis
• B. medullary rays
• C. pericycle
• D. xylem parenchyma

Answer 1

The correct option is B

medullary rays

The correct option is B

Explanation for the correct option:

1. Interfascicular cambium is matured from the cells of the medullary rays.
2. In dicot stems, intravascular cambium can be found between the primary xylem and primary phloem.
3. The cells of medullary rays, next to these intrafascicular cambia become meristematic and form the interfascicular cambium.

Explanation for the incorrect options:

Option A:

1. The innermost layer of the cortex of the dicot root is known as the endodermis.
2. Endodermis regulates the flow of materials between the cortex and the vascular tissues.

Option C:

1. The non-vascular tissues of the plant are known as the pericycle.
2. It gives lateral support to the plant by surrounding the xylem and phloem in the stem.

Option D:

1. The intrafascicular cambium is present between the primary xylem and the primary phloem.
2. The function of xylem parenchyma is to store water in its cells.

Final answer: Interfascicular cambium develops from the cells of the medullary rays.