Assertion :- Chloroplast, chromoplast and leucoplasts are variable forms of plastids with differential colouration.
Reason:- Such classification of plastids is based on differential structure

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

To analyze the given assertion and reason, we will break down the statements step by step.

### Step 1: Understanding the Assertion
The assertion states that "Chloroplast, chromoplast, and leucoplasts are variable forms of plastids with differential coloration."
- **Chloroplasts** contain chlorophyll and are green.
- **Chromoplasts** contain various pigments and can be red, yellow, or orange.
- **Leucoplasts** are colorless and primarily involved in storage.

**Conclusion**: The assertion is true because these plastids do exhibit different colors.

### Step 2: Understanding the Reason
The reason states that "Such classification of plastids is based on differential structure."
- All plastids originate from proplastids and have similar structures.
- The classification into chloroplasts, chromoplasts, and leucoplasts is primarily based on their color and function, not their structural differences.

**Conclusion**: The reason is false because the classification is based on color, not structural differences.

### Step 3: Evaluating the Relationship Between Assertion and Reason
- The assertion is true.
- The reason is false.

### Final Conclusion
Since the assertion is true and the reason is false, the correct answer is option 3: "If assertion is true and reason is false."

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