Question:
The site of light reaction in photosynthesis is: ____.
The site of light reaction in photosynthesis is: ____.
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Remember GL and SD: Grana for Light reaction, and Stroma for Dark reaction.
Updated On: May 16, 2026
- Stroma
- Cytoplasm
- Grana
- Ribosome
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Photosynthesis takes place in the chloroplast and consists of two main stages: the Light-dependent reaction and the Light-independent reaction (Calvin Cycle).
Step 2: Detailed Explanation:
The chloroplast is divided into specific regions for these reactions:
• Grana (Thylakoids): These are stacks of membrane-bound discs containing chlorophyll. This is where sunlight is captured and the Light Reaction occurs, producing ATP and NADPH.
• Stroma: The fluid-filled space surrounding the grana. This is the site of the Dark Reaction (Calvin Cycle), where CO\(_2\) is converted into glucose.
Step 3: Final Answer:
The site of the light reaction is the Grana.
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