The Question is from neet-botany anatomy-of-flowering-plants , and it was created by the author D VINOD

Question

A unique feature of the quiescent center in root apical meristem is its:

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
 **Primary Concept**: Root apical meristem and quiescent center function
 **Related Topics**: Plant development, cell division, meristematic activity
 **Prerequisites**: Understanding of plant tissues and their roles.
## SOLUTION PATHWAY
**Given Information**:
  The question asks about the unique feature of the quiescent center in the root apical meristem.
**Method & Steps**:
 1. Understanding the quiescent center's role:
  Reasoning: The quiescent center is a group of cells located in the root apical meristem.  It's crucial for maintaining the meristem's integrity and preventing its depletion during cell division.
 2. Analyzing the options:
  Working: Option A is incorrect because the quiescent center exhibits low mitotic activity, not high.
  Option B is correct because the quiescent center has low mitotic activity and serves as a reserve of cells to replenish the meristem if needed.
  Option C is incorrect; while the quiescent center plays a role in growth, it doesn't primarily synthesize growth hormones.
  Option D is incorrect; cells in the quiescent center are not undergoing programmed cell death; rather, they are relatively inactive but can divide if necessary.
 3. Final step:
  Result: The unique feature is low mitotic activity and acting as a reserve.
  Verification: This aligns with the established understanding of the quiescent center's function in maintaining the root apical meristem.
 ## OPTION ANALYSIS
A :x: High mitotic activity and contributes to root cap formation is incorrect. The quiescent center has low mitotic activity.
B ✓: Low mitotic activity and acts as a reserve is correct. The quiescent center acts as a reservoir of cells for the meristem.
C :x: High metabolic activity and synthesizes growth hormones is incorrect. While metabolic activity is present, it's not the defining characteristic, and hormone synthesis is not its primary function.
D :x: Absence of cell division and undergoes programmed cell death is incorrect. The quiescent center can undergo cell division when needed and doesn't undergo programmed cell death.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the quiescent center with other regions of the root apical meristem that show high mitotic activity: Focus on the unique low activity of the quiescent center.
  2.Overemphasizing a specific function while ignoring the overall role: The quiescent center's role is multifaceted, but its low mitotic activity is key.
 **Quick Tips**:
  1.Remember the quiescent center as a 'reserve' of cells for the root apical meristem.
  2.Think of it as a 'slow' or 'dormant' region within a highly active area.

D VINOD · Answer

High mitotic activity and contributes to root cap formation

D VINOD · Answer

The correct Option is "Low mitotic activity and acts as a reserve"

D VINOD · Answer

High metabolic activity and synthesizes growth hormones

D VINOD · Answer

Absence of cell division and undergoes programmed cell death

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