SCIENCE
BOTANY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Grana
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Stroma
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Cytoplasm
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Endoplasmic reticulum
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Detailed explanation-1: -(i) Light reactions occur in grana thylakoids whereas dark reactions occur in stroma of chloroplasts.
Detailed explanation-2: -Grana is the stack of thylakoids in the chloroplast. These are the sites of light reaction in which ATP and NADPH are produced. The fluid surrounding the granum are the stroma that is a site for dark reaction (Calvin cycle) in which ATP and NADPH are used.
Detailed explanation-3: -The light-independent reactions of photosynthesis take place within the stroma. It contains enzymes that work with ATP and NADPH to “fix” carbon from carbon dioxide into molecules that can be used to build glucose.
Detailed explanation-4: -Photosynthesis. This overview of photosynthesis shows the light-dependent reaction taking place in the thylakoid membranes of the chloroplast and the Calvin cycle taking place in the stroma of the chloroplast.
Detailed explanation-5: -Grana (thylakoid membrane, to be precise) is where light reactions of photosynthesis occur.