The light phase of photosynthesis occurs in ______ and dark phase occurs in ________.

Options

A. Stroma, Grana
B. Grana, Thylakoid
C. Grana, Stroma
D. Thylakoid, Grana

Explanation

**Step-by-Step Solution:**

1. **Understanding Photosynthesis**: Photosynthesis is a process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose. This process occurs in two main phases: the light phase and the dark phase.

2. **Identifying the Location of Photosynthesis**: Photosynthesis takes place in the chloroplasts of plant cells, which are often referred to as the "kitchen" of the plant because they are where food (glucose) is produced.

3. **Light Phase of Photosynthesis**: The light phase, also known as the light-dependent reactions, occurs in the thylakoid membranes of the chloroplasts. During this phase, light energy is captured and used to produce ATP and NADPH.

4. **Dark Phase of Photosynthesis**: The dark phase, also known as the Calvin cycle or light-independent reactions, occurs in the stroma of the chloroplasts. In this phase, the ATP and NADPH produced in the light phase are used to convert carbon dioxide into glucose.

5. **Final Answer**: Therefore, the light phase of photosynthesis occurs in the **grana** (thylakoids), and the dark phase occurs in the **stroma**.

**Answer**: The light phase of photosynthesis occurs in **grana** and the dark phase occurs in **stroma**.

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