The Krebs cycle takes place in
Athe cytoplasm of the cell
Bthe chloroplast stroma
Cthe nuclear envelope
Dthe mitochondrial matrix
Answer & Solution
Correct answer: D. the mitochondrial matrix
The Krebs (citric-acid / TCA) cycle runs in the mitochondrial matrix. Pyruvate moves from cytoplasm into the matrix to enter the cycle. The electron-transport chain that follows is on the inner mitochondrial membrane, not the matrix.
Related questions
Reactions catalysed by pyruvic dehydrogenase require coenzyme A and:In fermentation, what proportion of the energy in glucose is released?In exercising muscle with inadequate oxygen, pyruvic acid is reduced to:Which two enzymes catalyse alcoholic fermentation?In fermentation by yeast, pyruvic acid is converted to carbon dioxide and:In anaerobic organisms, glycolysis is described as:Krebs cycle achieves the complete oxidation of glucose and is also called:The term glycolysis comes from Greek words for splitting and: