Exine of pollen contains large amount of :

Options

A. Lecithin
B. Sporopollenin
C. Lignin
D. Suberin

Answer

To solve the question regarding what the exine of pollen contains in large amounts, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structure of Pollen**:
- Pollen grains have two main layers: the outer layer called exine and the inner layer called entine.
- The exine is the protective outer layer that is crucial for the survival of the pollen grain.

2. **Identifying the Composition of Exine**:
- The exine is primarily composed of a substance known as sporopollenin.
- Sporopollenin is known for its durability and resistance to decay, which helps protect the pollen grains from environmental factors.

3. **Evaluating the Options**:
- The options provided are:
- A) Lecithin
- B) Sporopollenin
- C) Lignin
- D) Suberin
- We need to determine which of these substances is found in large amounts in the exine.

4. **Analyzing Each Option**:
- **Lecithin**: This is a fat found in various foods and is not a major component of pollen exine.
- **Sporopollenin**: This is the correct answer, as it is the main component of the exine.
- **Lignin**: This is found in the cell walls of vascular tissues, particularly in xylem, and is not associated with pollen exine.
- **Suberin**: This is associated with certain plant tissues, particularly in roots, but not in pollen.

5. **Conclusion**:
- Based on the analysis, the exine of pollen contains a large amount of **sporopollenin**.

### Final Answer:
The exine of pollen contains a large amount of **sporopollenin**.

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