Cytochromes are respiratory proteins.Which of the following statements accurately reflects their true nature?
A) Cytochrome proteins reside free in the lung cells of all vertebrates.These molecules contain a heme group with an iron atom at its center.
B) Cytochrome proteins reside in the mitochondria and are specifically associated with the electron transport system.
C) Cytochrome proteins reside in the mitochondria and are specifically associated with the Kreb cycle.
D) Cytochrome proteins reside in the mitochondria and are specifically associated with glycolysis.
Correct Answer:
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Q31: Regardless of the electron or hydrogen acceptor
Q44: In muscle cells,fermentation produces not alcohol but
A)ATP.
B)NADH.
C)pyruvate.
D)kinetic
Q45: Which of the following statements accurately reflects
Q46: What type of cell respiration occurs when
Q47: Beta oxidation of these molecules converts them
Q50: Intermediate in glycolysis;finally oxidized to pyruvate.
A)ATP
B)FAD
C)G3P
D)NAD+
E)acetyl-CoA
Q51: Pyruvate oxidation;carrier of acetyl groups.
A)ATP
B)FAD
C)G3P
D)NAD+
E)acetyl-CoA
Q52: When ATP levels are high,oxidative pathways are
Q53: When substrate-level phosphorylation occurs,it means that
A)NAD is
Q54: Select the correct sequence concerning glucose
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