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    Question

    Grana membranes are found in which cellular organelle?

    A Mitochondria Correct Answer Incorrect Answer
    B Chloroplast Correct Answer Incorrect Answer
    C Nucleolus Correct Answer Incorrect Answer
    D Endoplasmic reticulum Correct Answer Incorrect Answer

    Solution

    Grana (singular: granum) are stacks of thylakoid membranes located within chloroplasts. They play a crucial role in the photosynthetic light reactions, where light energy is converted into chemical energy. The grana structure increases the surface area for these vital reactions.

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