Exine of pollen contains large amount of :

Options

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

Answer

To solve the question "Exine of pollen contains large amount of:", we need to analyze the components of pollen grains, specifically focusing on the exine layer.

### Step-by-Step Solution:

1. **Understanding Pollen Structure**:
- Pollen grains are the male gametophytes in seed plants. They consist of a tough outer layer called the exine and an inner layer known as the intine.

2. **Identifying the Composition of Exine**:
- The exine is known for its resilience and structural integrity. It is primarily composed of a substance called sporopollenin.

3. **Sporopollenin**:
- Sporopollenin is a complex polymer that is highly resistant to degradation. It is composed of various organic compounds, including carotenoids and other materials. This makes it one of the most durable biological substances known.

4. **Evaluating Other Options**:
- The question may provide other options such as lignin or suberin. However, these are not the primary components of the exine. Lignin is found in other plant structures, while suberin is associated with protective tissues.

5. **Conclusion**:
- Based on the analysis, the correct answer is that 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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