Wall of a mature pollen grain consists of

Options

A. Ektexine and endexine
B. Tapetum and endothecium
C. Exine and intine
D. Foot and baculate layer.

Answer

To answer the question about the composition of the wall of a mature pollen grain, we can break down the information step by step:

### Step 1: Understanding Pollen Grain Structure
- A mature pollen grain has a complex structure that includes multiple layers.

### Step 2: Identifying the Layers
- The wall of a mature pollen grain consists of two main layers:
1. **Exine**: The outer layer.
2. **Intine**: The inner layer.

### Step 3: Composition of the Layers
- **Exine**: This layer is primarily composed of a substance called **Sporopollenin**, which is known for its durability and resistance to decay.
- **Intine**: This layer is mainly composed of **polysaccharides**.

### Step 4: Conclusion
- Therefore, the wall of a mature pollen grain consists of **Exine and Intine**.

### Final Answer
- The correct option is **C: Exine and Intine**.

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