Question

which process occurs within the mitochondria?
○ lactic acid fermentation
○ alcohol fermentation
○ glycolysis
○ krebs cycle

Explanation:

• Lactic acid fermentation occurs in the cytoplasm of muscle cells (and some bacteria/yeast under anaerobic conditions).
• Alcohol fermentation also occurs in the cytoplasm of yeast and some bacteria.
• Glycolysis takes place in the cytoplasm of cells.
• The Krebs cycle (also known as the citric acid cycle) occurs in the matrix of the mitochondria.

Answer:

D. Krebs cycle