Which organelle contains chlorophyll and carries out photosynthesis?

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Multiple Choice

Which organelle contains chlorophyll and carries out photosynthesis?

Explanation:
Chloroplasts house chlorophyll, the green pigment that captures light energy. In plant cells, photosynthesis happens there: light-driven reactions in the thylakoid membranes generate ATP and NADPH, which then power the fixation of carbon dioxide into sugars in the stroma. Mitochondria, by contrast, are involved in respiration and energy production from sugar, not the light-driven synthesis of sugars. The nucleus stores genetic material, and ribosomes synthesize proteins. Because chloroplasts uniquely contain chlorophyll and carry out the light capture and carbon-fixing steps of photosynthesis, they are the organelles responsible for this process.

Chloroplasts house chlorophyll, the green pigment that captures light energy. In plant cells, photosynthesis happens there: light-driven reactions in the thylakoid membranes generate ATP and NADPH, which then power the fixation of carbon dioxide into sugars in the stroma. Mitochondria, by contrast, are involved in respiration and energy production from sugar, not the light-driven synthesis of sugars. The nucleus stores genetic material, and ribosomes synthesize proteins. Because chloroplasts uniquely contain chlorophyll and carry out the light capture and carbon-fixing steps of photosynthesis, they are the organelles responsible for this process.

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