Which organelle produces about 95% of a cell's energy?

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Multiple Choice

Which organelle produces about 95% of a cell's energy?

Explanation:
Mitochondria are the powerhouses of the cell, generating ATP through cellular respiration. The inner membrane cristae provide a large surface area for the electron transport chain, where electrons drive a proton gradient that powers ATP synthase to convert ADP and inorganic phosphate into ATP. This process yields about 95% of a cell’s energy in many cells, with remaining ATP produced by glycolysis in the cytosol and, when oxygen is scarce, by fermentation. The nucleus houses DNA and controls activities, while the endoplasmic reticulum and Golgi apparatus handle protein and lipid synthesis, modification, and trafficking. Those organelles support cellular function, but they don’t produce most of the energy that mitochondria generate.

Mitochondria are the powerhouses of the cell, generating ATP through cellular respiration. The inner membrane cristae provide a large surface area for the electron transport chain, where electrons drive a proton gradient that powers ATP synthase to convert ADP and inorganic phosphate into ATP. This process yields about 95% of a cell’s energy in many cells, with remaining ATP produced by glycolysis in the cytosol and, when oxygen is scarce, by fermentation. The nucleus houses DNA and controls activities, while the endoplasmic reticulum and Golgi apparatus handle protein and lipid synthesis, modification, and trafficking. Those organelles support cellular function, but they don’t produce most of the energy that mitochondria generate.

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