1)
What is the term for metabolic pathways that release stored energy by breaking down complex molecules?
A)
anabolic pathways
B)
catabolic pathways
C)
thermodynamic pathways
D)
bioenergetic pathways
2)
Which of the following statements describes the results of this reaction?
C6H12O6 + 6 O2 โ 6 CO2 + 6 H2O + Energy
A)
C6H12O6 is oxidized and O2 is reduced.
B)
O2 is oxidized and H2O is reduced.
C)
CO2 is reduced and O2 is oxidized.
D)
C6H12O6 is reduced and CO2 is oxidized.
3)
Which of the following intermediary metabolites enters the citric acid cycle and is formed, in part, by the
removal of a carbon (CO2) from one molecule of pyruvate?
A)
lactate
B)
glyceraldehydes-3-phosphate
C)
oxaloacetate
D)
acetyl CoA
E)
citrate
4)
Carbon dioxide (CO2) 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
5)
Where are the proteins of the electron transport chain located?
A)
cytosol
B)
mitochondrial outer membrane
C)
mitochondrial inner membrane
D)
mitochondrial intermembrane space
E)
mitochondrial matrix
6)
Energy released by the electron transport chain is used to pump H+
into which location in eukaryotic cells?
A)
cytosol
B)
mitochondrial outer membrane
C)
mitochondrial inner membrane
D)
mitochondrial intermembrane space
E)
mitochondrial matrix
7)
Which of the following produces the most ATP when glucose (C6H12O6) is completely oxidized to carbon
dioxide (CO2) and water?
A)
glycolysis
B)
oxidation of pyruvate to acetyl CoA
C)
citric acid cycle
D)
oxidative phosphorylation (chemiosmosis)
