Assertion: Chloroplasts are known as semiautonomus cell organelle.
Reason: Chloroplast has lipoprotein membrane.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion & Reason are false.

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion:**
- The assertion states that "Chloroplasts are known as semi-autonomous cell organelles."
- Chloroplasts are indeed classified as semi-autonomous organelles because they possess their own DNA, which is circular in nature, similar to bacterial DNA. This allows them to replicate independently of the cell's nuclear DNA.

2. **Understanding the Reason:**
- The reason provided is "Chloroplast has lipoprotein membrane."
- However, this statement is incorrect. Chloroplasts have a double membrane structure primarily composed of phospholipids and sulfolipids, not lipoproteins. The inner and outer membranes of chloroplasts are made up of lipid bilayers, which are characteristic of cellular membranes.

3. **Evaluating the Truth of Assertion and Reason:**
- The assertion is true: Chloroplasts are semi-autonomous organelles.
- The reason is false: Chloroplasts do not have a lipoprotein membrane; they have a phospholipid membrane.

4. **Conclusion:**
- Since the assertion is true and the reason is false, the correct option is:
- **Option C: If assertion is true but reason is false.**