Question

Intrafascicular cambium is situated in-

• A. Outside the vascular bundles
• B. In medullary rays
• C. Inside the vascular bundles
• D. In between the vascular bundles

Answer 1

The correct option is C

Inside the vascular bundles

The correct option is C.

Explanation of the correct option:

1. In a dicotyledonous stem, the cells present between the primary xylem and primary phloem are called intrafascicular cambium.
2. The intrafascicular cambium is also known as the vascular cambium.

Explanation of the incorrect option:

Option A:

1. Neither the intrafascicular cambium nor the interfascicular cambium is present outside the vascular bundles.
2. These are present inside the vascular bundles.

Option B:

During secondary growth, the medullary rays adjacent to the intrafascicular cambium develop into meristematic tissue and are called interfascicular cambium.

Option C:

1. Both intrafascicular and interfascicular cambiums combine together and form a continuous ring which is known as a cambial ring.
2. Hence, the intrafascicular cambium resides within the vascular bundles.

Final answer: Intrafascicular cambium is situated inside the vascular bundles.