Which among the following is not a pigment present in thylakoids?

Options

A. Carotene
B. Chlorophyll-a
C. Chlorophyll-b
D. NADP

Explanation

To solve the question "Which among the following is not a pigment present in thylakoids?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand Thylakoids**: Thylakoids are membrane-bound structures within chloroplasts where the light-dependent reactions of photosynthesis occur. They contain pigments that capture light energy.

2. **Identify Common Pigments in Thylakoids**:
- **Chlorophyll A**: A primary pigment involved in photosynthesis, present in thylakoids.
- **Chlorophyll B**: Another pigment that assists in capturing light energy, also found in thylakoids.
- **Carotene**: A pigment that helps in photosynthesis by capturing light energy, present in thylakoids.

3. **Identify the Non-Pigment**:
- **NADP (Nicotinamide Adenine Dinucleotide Phosphate)**: This is not a pigment; rather, it is a coenzyme involved in the electron transport chain and is primarily found in the stroma of the chloroplasts, not in the thylakoids.

4. **Conclusion**: Based on the analysis, the pigment that is not present in thylakoids is **NADP**.

### Final Answer:
The pigment that is not present in thylakoids is **NADP**.

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