Glycolysis process occur in?
Correct answer: A. cytosol
- A. cytosol
- B. Mitochondria
- C. Matrix
- D. Endoplasmic reticulum
Explanation
Glycolysis takes place in the cytosol, the fluid portion of the cell outside the mitochondria, and splits one glucose molecule into two pyruvate molecules. The mitochondrial matrix is the site of the Krebs cycle, not glycolysis. Students may choose mitochondria because most later aerobic-respiration stages occur there.
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About Cellular Respiration
Cellular respiration releases energy from glucose through glycolysis, the link reaction, the Krebs cycle and the electron transport chain, producing ATP. The pathway differs in oxygen availability: aerobic respiration uses oxygen and yields more ATP, while anaerobic respiration produces much less ATP and forms lactic acid in muscles or ethanol and carbon dioxide in yeast.
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