Which of the following statements about cork cambium is incorrect?

Options

A. it forms secondary cortex on its outerside
B. it forms a part of periderm
C. it is responsible for the formation of lenticels
D. it is couple of layers thick

Answer

To determine which statement about cork cambium is incorrect, we can analyze each statement provided. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Function of Cork Cambium
Cork cambium, also known as phellogen, is a type of lateral meristem that is responsible for the production of cork (phellem) and secondary cortex during secondary growth in plants.

### Step 2: Analyze Each Statement
1. **Statement 1**: "It forms secondary cortex on its outer side."
- This statement is incorrect. Cork cambium produces cork (phellem) on the outer side and secondary cortex (phelloderm) on the inner side. Therefore, it does not form secondary cortex on its outer side.

2. **Statement 2**: "It forms a part of periderm."
- This statement is correct. Cork cambium is indeed a component of the periderm, which includes cork and phelloderm.

3. **Statement 3**: "It is responsible for the formation of lenticels."
- This statement is correct. Lenticels are formed from the cork cambium and allow for gas exchange in the plant.

4. **Statement 4**: "It is a couple of layers thick."
- This statement is also correct. Cork cambium typically consists of a few layers of cells.

### Step 3: Identify the Incorrect Statement
From the analysis, the first statement is the only incorrect one regarding cork cambium.

### Conclusion
The incorrect statement about cork cambium is: "It forms secondary cortex on its outer side."

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