Chloroplast is differentiated into two structural components i.e. grana and stroma.

Answer

**Step-by-Step Solution:**

1. **Understanding Chloroplast Structure**: Chloroplasts are the organelles in plant cells responsible for photosynthesis. They are differentiated into two main structural components: grana and stroma.

2. **Identifying Grana**: Grana are stacks of thylakoids, which are membrane-bound structures within the chloroplast. These thylakoids contain chlorophyll, the green pigment essential for capturing light energy during photosynthesis.

3. **Function of Grana**: The primary function of grana is to facilitate the light-dependent reactions of photosynthesis. During these reactions, light energy is converted into chemical energy in the form of ATP and NADPH.

4. **Identifying Stroma**: The stroma is the fluid-filled space surrounding the grana within the chloroplast. It is colorless and serves as the site for the light-independent reactions, also known as the Calvin cycle.

5. **Function of Stroma**: The stroma contains enzymes that are crucial for the fixation of carbon dioxide during the Calvin cycle, which ultimately leads to the synthesis of glucose.

6. **Conclusion**: In summary, chloroplasts are indeed differentiated into two structural components: grana, which are involved in the light-dependent reactions of photosynthesis, and stroma, which is involved in the light-independent reactions.

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