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A quiz consisting of 12 multiple-choice questions designed to test the understanding of cellular respiration concepts, including metabolic pathways, intermediates, and electron transport. Questions cover topics such as anabolic and catabolic pathways, the role of oxygen, and the sequence of electron flow in the respiratory chain.
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A) anabolic pathways B) catabolic pathways
C) thermodynamic pathways D) bioenergetic pathways
O + Energy
is oxidized and O 2
is reduced. B) O 2
is oxidized and H 2
O is reduced.
is reduced and O 2
is oxidized. D) C 6
is reduced and CO 2
is oxidized.
removal of a carbon (CO 2
) from one molecule of pyruvate?
A) lactate
B) glyceraldehydes- 3 - phosphate
C) oxaloacetate
D) acetyl CoA
E) citrate
) is released during which of the following stages of cellular respiration?
A) glycolysis and the oxidation of pyruvate to acetyl CoA
B) oxidation of pyruvate to acetyl CoA and the citric acid cycle
C) the citric acid cycle and oxidative phosphorylation
D) oxidative phosphorylation and fermentation
A) cytosol
B) mitochondrial outer membrane
C) mitochondrial inner membrane
D) mitochondrial intermembrane space
E) mitochondrial matrix
into which location in eukaryotic cells?
A) cytosol
B) mitochondrial outer membrane
C) mitochondrial inner membrane
D) mitochondrial intermembrane space
E) mitochondrial matrix
) is completely oxidized to carbon
dioxide (CO 2
) and water?
A) glycolysis B) oxidation of pyruvate to acetyl CoA
C) citric acid cycle D) oxidative phosphorylation (chemiosmosis)
A) the oxidation of pyruvate to acetyl CoA
B) the citric acid cycle
C) oxidative phosphorylation
D) glycolysis
E) chemiosmosis
Challenging questions
intermembrane space, the result is the
A) formation of ATP. B) reduction of NAD
C) creation of a proton-motive force. D) lowering of pH in the mitochondrial matrix.
A) yield energy in the form of ATP as it is passed down the respiratory chain.
B) act as an acceptor for electrons and hydrogen, forming water.
C) combine with carbon, forming CO 2
D) catalyze the reactions of glycolysis.
A) food โ citric acid cycle โ ATP โ NAD
B) food โ NADH โ electron transport chain โ oxygen
C) glucose โ pyruvate โ ATP โ oxygen
D) glucose โ ATP โ electron transport chain โ NADH
E) food โ glycolysis โ citric acid cycle โ NADH โ ATP
A) NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle.
has more chemical energy than NADH.
is oxidized by the action of hydrogenases.
can donate electrons for use in oxidative phosphorylation.