MICROBIOLOGY EXAM REVISION
QUESTIONS AND ANSWERS
A. chemoautotroph
Which of the following is an organism that obtains its energy
from the transfer of electrons originating from chemical
compounds and its carbon from an inorganic source?
A. chemoautotroph
B. chemoheterotroph
C. photoheterotroph
D. photoautotroph
D.NADPH
Which of the following molecules is reduced?
A. NAD+
B. FAD
C. O2
D. NADPH
B. reducing the activation energy
Enzymes work by which of the following?
A. increasing the activation energy
B. reducing the activation energy
C. making exergonic reactions endergonic
D. making endergonic reactions exergonic
C. the substrate
,To which of the following does a competitive inhibitor most
structurally resemble?
A. the active site
B. the allosteric site
C. the substrate
D. a coenzyme
B. coenzymes
Which of the following are organic molecules that help
enzymes work correctly?
A. cofactors
B. coenzymes
C. holoenzymes
D. apoenzymes
B. Transition reaction
During which of the following is ATP not made by substrate-
level phosphorylation?
A. Embden-Meyerhof pathway
B. Transition reaction
C. Krebs cycle
D. Entner-Doudoroff pathway
B.pyruvate
Which of the following products is made during Embden-
Meyerhof glycolysis?
A. NAD+
B. pyruvate
, C. CO2
D. two-carbon acetyl
D.FADH2
During the catabolism of glucose, which of the following is
produced only in the Krebs cycle?
A. ATP
B. NADH
C. NADPH
D. FADH2
C. Calvin cycle
Which of the following is not a name for the cycle resulting in
the conversion of a two-carbon acetyl to one ATP, two CO2,
one FADH2, and three NADH molecules?
A. Krebs cycle
B. tricarboxylic acid cycle
C. Calvin cycle
D. citric acid cycle
D.the cytoplasmic membrane
Which is the location of electron transports systems in
prokaryotes?
A. the outer mitochondrial membrane
B. the cytoplasm
C. the inner mitochondrial membrane
D. the cytoplasmic membrane
C.the proton motive force
QUESTIONS AND ANSWERS
A. chemoautotroph
Which of the following is an organism that obtains its energy
from the transfer of electrons originating from chemical
compounds and its carbon from an inorganic source?
A. chemoautotroph
B. chemoheterotroph
C. photoheterotroph
D. photoautotroph
D.NADPH
Which of the following molecules is reduced?
A. NAD+
B. FAD
C. O2
D. NADPH
B. reducing the activation energy
Enzymes work by which of the following?
A. increasing the activation energy
B. reducing the activation energy
C. making exergonic reactions endergonic
D. making endergonic reactions exergonic
C. the substrate
,To which of the following does a competitive inhibitor most
structurally resemble?
A. the active site
B. the allosteric site
C. the substrate
D. a coenzyme
B. coenzymes
Which of the following are organic molecules that help
enzymes work correctly?
A. cofactors
B. coenzymes
C. holoenzymes
D. apoenzymes
B. Transition reaction
During which of the following is ATP not made by substrate-
level phosphorylation?
A. Embden-Meyerhof pathway
B. Transition reaction
C. Krebs cycle
D. Entner-Doudoroff pathway
B.pyruvate
Which of the following products is made during Embden-
Meyerhof glycolysis?
A. NAD+
B. pyruvate
, C. CO2
D. two-carbon acetyl
D.FADH2
During the catabolism of glucose, which of the following is
produced only in the Krebs cycle?
A. ATP
B. NADH
C. NADPH
D. FADH2
C. Calvin cycle
Which of the following is not a name for the cycle resulting in
the conversion of a two-carbon acetyl to one ATP, two CO2,
one FADH2, and three NADH molecules?
A. Krebs cycle
B. tricarboxylic acid cycle
C. Calvin cycle
D. citric acid cycle
D.the cytoplasmic membrane
Which is the location of electron transports systems in
prokaryotes?
A. the outer mitochondrial membrane
B. the cytoplasm
C. the inner mitochondrial membrane
D. the cytoplasmic membrane
C.the proton motive force
