Name the structural and functional elements of chloroplasts.

Explanation

### Step-by-Step Solution:

1. **Understanding Chloroplasts**:
- Chloroplasts are double membrane-bound organelles found in plant cells and some protists. They are essential for photosynthesis.

2. **Structure of Chloroplasts**:
- Chloroplasts have two membranes: an outer membrane and an inner membrane.
- The space enclosed by the inner membrane is known as the **stroma**.
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