객관식
In one turn of the citric acid (Krebs) cycle per acetyl-CoA (not including ATP from oxidative phosphorylation of NADH and FADH2), how many ATP equivalents are produced directly by substrate-level phosphorylation?
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Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism
Citric Acid Cycle 1
Multiple Choice
In eukaryotic cells, where is the Krebs (citric acid) cycle primarily located?
A
Cytosol
B
Inner mitochondrial membrane
C
Nucleus
D
Mitochondrial matrix
검증된 단계별 안내1
Recall the main function of the Krebs (citric acid) cycle, which is to oxidize acetyl-CoA to produce NADH, FADH2, and ATP precursors.
Understand that the Krebs cycle occurs in a specific compartment within eukaryotic cells where enzymes and substrates are localized for efficient metabolism.
Identify the mitochondrion as the organelle responsible for aerobic respiration and energy production in eukaryotic cells.
Recognize that the Krebs cycle enzymes are located in the mitochondrial matrix, the innermost compartment of the mitochondrion, where the cycle takes place.
Note that the inner mitochondrial membrane houses the electron transport chain, but the Krebs cycle itself occurs in the matrix, not in the membrane or cytosol.
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