Who first recognised the importance of chlorophyll for photosynthesis?

Explanation

**Step-by-Step Solution:**

1. **Identify the Process of Photosynthesis**: Understand that photosynthesis is the process by which green plants convert light energy into chemical energy to produce their own food.

2. **Recognize the Role of Chlorophyll**: Acknowledge that chlorophyll is the green pigment found in plants that plays a crucial role in photosynthesis by absorbing light energy.

3. **Historical Context**: Look into the history of photosynthesis research to find out who first recognized the significance of chlorophyll in this process.

...