Which organelle is primarily responsible for producing ATP via cellular respiration?

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Multiple Choice

Which organelle is primarily responsible for producing ATP via cellular respiration?

Explanation:
ATP production through cellular respiration happens mainly in the mitochondria. These organelles host the electron transport chain on the inner membrane and ATP synthase, which uses the proton gradient to produce ATP. The citric acid cycle runs in the mitochondrial matrix, providing the electrons that drive the chain. Glycolysis occurs in the cytosol, not in mitochondria, and prepares substrates for the mitochondria. Other organelles—the nucleus stores and regulates genetic material, ribosomes synthesize proteins, and the Golgi apparatus processes and ships proteins—do not generate ATP in significant amounts. So, the mitochondria are the primary site of ATP production.

ATP production through cellular respiration happens mainly in the mitochondria. These organelles host the electron transport chain on the inner membrane and ATP synthase, which uses the proton gradient to produce ATP. The citric acid cycle runs in the mitochondrial matrix, providing the electrons that drive the chain. Glycolysis occurs in the cytosol, not in mitochondria, and prepares substrates for the mitochondria. Other organelles—the nucleus stores and regulates genetic material, ribosomes synthesize proteins, and the Golgi apparatus processes and ships proteins—do not generate ATP in significant amounts. So, the mitochondria are the primary site of ATP production.

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