Amyloplasts store food materials in the form of starch grains.
Chloroplasts synthesis hexose sugars.

Options

A. If both As and R are correct and R is correct explanation of As
B. If both As and R are correct but R is not correct explanation of As
C. If As is correct, R is wrong
D. If both As and R are wrong.

Answer

### Step-by-Step Solution

1. **Understanding the Assertion**: The assertion states that "amyloplasts store food materials in the form of starch grains."
- **Explanation**: Amyloplasts are a type of plastid found in plant cells, specifically responsible for storing starch, which is a polysaccharide made up of glucose units. This assertion is true.

2. **Understanding the Reason**: The reason states that "chloroplasts synthesize hexose sugars."
- **Explanation**: Chloroplasts are the organelles in plant cells where photosynthesis occurs. During this process, chloroplasts convert light energy into chemical energy, producing glucose (a hexose sugar) as a byproduct. This statement is also true.

3. **Evaluating the Relationship**: Now we need to determine if the reason provided explains the assertion.
- **Analysis**: While both statements are true, the synthesis of hexose sugars in chloroplasts does not directly explain how amyloplasts store starch. The process of photosynthesis produces glucose, which can then be converted into starch for storage, but the reason does not directly clarify the function of amyloplasts.

4. **Conclusion**: Since both the assertion and reason are true, but the reason does not provide a correct explanation for the assertion, the answer to the question is that both statements are true, but the reason is not the correct explanation of the assertion.

5. **Final Answer**: The correct option is 2.

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