Question

‘Quiescent Center’ is present in

• A. leaf meristem
• B. root apical meristem
• C. shoot apical meristem
• D. floral meristem

Hint:

The quiescent center is a key feature of the root apical meristem, where it serves as a reserve population for cell regeneration.

Answer 1

The Correct Option is B

Step 1: Understand Quiescent Center.
The quiescent center refers to a group of cells in the root apical meristem that are relatively inactive compared to the surrounding meristematic cells. These cells divide infrequently and serve as a reserve population for cell regeneration.
Step 2: Analyze the options.
- (A) Leaf meristem: This does not have a quiescent center; leaf meristems are actively dividing.
- (B) Root apical meristem: The quiescent center is present in the root apical meristem, which is the correct answer.
- (C) Shoot apical meristem: Although it has a central zone, it does not typically have a quiescent center like in the root.
- (D) Floral meristem: Floral meristems do not have a quiescent center.

Step 3: Conclusion.
The quiescent center is located in the root apical meristem, so the correct answer is (B).