Name the primary pigment molecules of PS I and PS II.

Explanation

To answer the question regarding the primary pigment molecules of Photosystem I (PS I) and Photosystem II (PS II), we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Photosystems**:
- Photosystems are complexes in plants that play a crucial role in photosynthesis. They contain pigments that absorb light energy.

2. **Identifying Photosystem I (PS I)**:
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