Structural and functional units of chloroplasts are .....................

Explanation

**Step-by-Step Solution:**

1. **Understanding Chloroplasts:**
- Chloroplasts are organelles found in plant cells and some protists that are responsible for photosynthesis. They contain various structures that facilitate the conversion of light energy into chemical energy.

2. **Identifying the Structural and Functional Units:**
- The question specifically asks for the structural and functional units of chloroplasts. The primary units responsible for these functions are known as "quanta zooms."

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