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The intine is made up of...

The intine is made up of

A

pectin

B

pecto-cellulose

C

callose

D

sporopollenin

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Structure of Pollen Grain**: - The pollen grain consists of two main layers: the outer layer called the exine and the inner layer known as the intine. 2. **Identifying the Components of the Intine**: - The intine is the inner layer of the pollen grain. It is crucial to understand what materials make up this layer. 3. **Composition of the Intine**: - The intine is primarily made up of two substances: pectin and cellulose. These components provide structural support and play a role in the function of the pollen grain. 4. **Evaluating the Options**: - If given multiple-choice options, we can analyze them: - Option A: Pectin - This is partially correct since pectin is a component of intine. - Option B: Pectocellulose - This is more precise as it includes both pectin and cellulose, which are the main components of the intine. - Option C: Callus - This is incorrect as callus is not a component of intine. - Option D: Sporopollenin - This is incorrect as sporopollenin is found in the exine, not the intine. 5. **Conclusion**: - Based on the analysis, the most accurate answer regarding the composition of the intine is **Option B: Pectocellulose**.
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