Identify the pair of wrong statements I. Intine of pollen grains is made up of sporopollenin, II.l Pollen grains are well preserved as fossils because of the presence of sporopollenin, III. Enzymes can degrade the organic material of the pollen grain exine, IV. Sporopollenin can withstand high temperature, strong acids and alkali

Options

A. III, IV
B. I, III
C. I,II
D. II,III

Answer

To solve the question, we need to analyze each of the statements provided and identify which pair of statements are incorrect.

### Step-by-Step Solution:

1. **Statement I: Intine of pollen grains is made up of sporopollenin.**
- **Analysis:** This statement is incorrect. The intine is the inner layer of the pollen grain and is primarily made up of cellulose and pectin, not sporopollenin. Sporopollenin is found in the outer layer, known as the exine.

2. **Statement II: Pollen grains are well preserved as fossils because of the presence of sporopollenin.**
- **Analysis:** This statement is correct. Pollen grains are indeed well preserved as fossils due to the presence of sporopollenin, which is highly resistant to degradation.

3. **Statement III: Enzymes can degrade the organic material of the pollen grain exine.**
- **Analysis:** This statement is incorrect. Sporopollenin, which makes up the exine, is resistant to degradation by enzymes, meaning that enzymes cannot effectively break down the organic material of the exine.

4. **Statement IV: Sporopollenin can withstand high temperature, strong acids, and alkali.**
- **Analysis:** This statement is correct. Sporopollenin is known for its durability and resistance to extreme conditions, including high temperatures and strong chemical environments.

### Conclusion:
From the analysis:
- **Incorrect Statements:** I and III.
- **Correct Statements:** II and IV.

Thus, the pair of wrong statements is **I and III**.

### Final Answer:
The pair of wrong statements is: **I and III**.

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