Where does glycolysis occur?

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Study for the Principles of Biology Exam 2. Enhance your understanding with multiple-choice questions, detailed explanations, and study tips. Ace your biology test!

Multiple Choice

Where does glycolysis occur?

Explanation:
Glycolysis occurs in the cytoplasm because it consists of soluble cytosolic enzymes that convert glucose into pyruvate without needing any membrane-bound organelle. In eukaryotic cells, the downstream steps—pyruvate oxidation, the TCA cycle, and oxidative phosphorylation—take place inside the mitochondria, while the nucleus houses genetic material and chloroplasts handle photosynthesis. So the cytoplasm is the correct location for glycolysis.

Glycolysis occurs in the cytoplasm because it consists of soluble cytosolic enzymes that convert glucose into pyruvate without needing any membrane-bound organelle. In eukaryotic cells, the downstream steps—pyruvate oxidation, the TCA cycle, and oxidative phosphorylation—take place inside the mitochondria, while the nucleus houses genetic material and chloroplasts handle photosynthesis. So the cytoplasm is the correct location for glycolysis.

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