Which organelle is primarily responsible for energy production in the cell?

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Multiple Choice

Which organelle is primarily responsible for energy production in the cell?

Energy production in the cell occurs primarily in mitochondria, where nutrients are converted into ATP, the cell’s main energy currency. In cellular respiration, the citric acid cycle and oxidative phosphorylation on the inner mitochondrial membrane generate most of the ATP, with ATP synthase using a proton gradient to drive the synthesis of ATP. The electron transport chain supplies the energy for this gradient, while glycolysis in the cytosol provides building blocks and a small amount of ATP before entering the mitochondria. The other organelles have different roles: ribosomes build proteins, the nucleus stores and manages genetic information, and the Golgi apparatus processes and ships cellular products.

Energy production in the cell occurs primarily in mitochondria, where nutrients are converted into ATP, the cell’s main energy currency. In cellular respiration, the citric acid cycle and oxidative phosphorylation on the inner mitochondrial membrane generate most of the ATP, with ATP synthase using a proton gradient to drive the synthesis of ATP. The electron transport chain supplies the energy for this gradient, while glycolysis in the cytosol provides building blocks and a small amount of ATP before entering the mitochondria. The other organelles have different roles: ribosomes build proteins, the nucleus stores and manages genetic information, and the Golgi apparatus processes and ships cellular products.

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