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Chlorophyll occurs in the thylakoids, and stacks of thylakoids form grana, which are the sites of light reactions. Circular DNA, ribosomes and enzymes for carbohydrate and protein synthesis occur in the stroma and may remain present.
Ref: NCERT Class 11 Biology Chapter 8: Cell: The Unit of Life Mitochondria Plastids Ribosomes and Other Organelles
Grana are the sites of the light reactions of photosynthesis, whereas the chloroplast stroma is the site of the dark reactions. Chlorophyll pigments are located in the thylakoids that form the grana.
Ref: NCERT Class 11 Biology Chapter 8: Cell: The Unit of Life Mitochondria Plastids Ribosomes and Other Organelles
Chlorophyll pigments are present in the thylakoids. The thylakoids occur in the stroma and may be arranged into stacks called grana.
Ref: NCERT Class 11 Biology Chapter 8: Cell: The Unit of Life Mitochondria Plastids Ribosomes and Other Organelles
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