The pigment molecules of a chloroplast are located within

Options

A. its thylakoid membrane
B. the space between the inner and outer membranes
C. the inner membrane
D. intrathylakoid spaces

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks where the pigment molecules of a chloroplast are located. Chloroplasts are the organelles responsible for photosynthesis in plant cells.

2. **Identifying the Options**: The options provided are:
- Option 1: Thylakoid Membrane
- Option 2: Space between the inner and outer membrane
- Option 3: Inner membrane
- Option 4: Intra-thylakoid spaces

3. **Analyzing Each Option**:
- **Option 1: Thylakoid Membrane**: This is the correct answer. The thylakoid membranes contain the photosynthetic pigments such as chlorophyll-a, chlorophyll-b, carotenoids, and xanthophylls. These pigments are essential for capturing light energy during photosynthesis.
- **Option 2: Space between the inner and outer membrane**: This option is incorrect. This space does not contain pigment molecules.
- **Option 3: Inner membrane**: This option is also incorrect. The inner membrane of the chloroplast does not house the pigment molecules.
- **Option 4: Intra-thylakoid spaces**: This option is incorrect as well. While these spaces are part of the thylakoid structure, the pigments themselves are located in the thylakoid membranes, not in the spaces.

4. **Conclusion**: Based on the analysis, the pigment molecules of a chloroplast are located within the **Thylakoid Membrane**.

### Final Answer:
The pigment molecules of a chloroplast are located within the **Thylakoid Membrane**.

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