Microbiology Chapters 8,9 And 10
(Openstax)Test Questions All Solved.
A. chemoautotroph - Answer 1. 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 - Answer 2. Which of the following molecules is reduced?
A.NAD+
B. FAD
C. O2
D. NADPH
B. reducing the activation energy - Answer 3. 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 - Answer 4. 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 - Answer 5. Which of the following are organic molecules that help enzymes
work correctly?
A. cofactors
B. coenzymes
, C. holoenzymes
D. apoenzymes
D. to make NAD+ - Answer 15. Which of the following is the purpose of fermentation?
A. to make ATP
B. to make carbon molecule intermediates for anabolism
C. to make NADH
D. to make NAD+
C. pyruvate - Answer 16. Which molecule typically serves as the final electron acceptor during
fermentation?
A. oxygen
B. NAD+
C. pyruvate
D. CO2
B. CO2 - Answer 17. Which fermentation product is important for making bread rise?
A. ethanol
B. CO2
C. lactic acid
D. hydrogen gas
B. pyruvate - Answer 18. Which of the following is not a commercially important fermentation
product?
A. ethanol
B. pyruvate
C. butanol
D. penicillin
anabolic - Answer 36. Processes in which cellular energy is used to make complex molecules
from simpler ones are described as _____.
oxidation - Answer 37. The loss of an electron from a molecule is called _____.
active site - Answer 38. The part of an enzyme to which a substrate binds is called _____.
(Openstax)Test Questions All Solved.
A. chemoautotroph - Answer 1. 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 - Answer 2. Which of the following molecules is reduced?
A.NAD+
B. FAD
C. O2
D. NADPH
B. reducing the activation energy - Answer 3. 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 - Answer 4. 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 - Answer 5. Which of the following are organic molecules that help enzymes
work correctly?
A. cofactors
B. coenzymes
, C. holoenzymes
D. apoenzymes
D. to make NAD+ - Answer 15. Which of the following is the purpose of fermentation?
A. to make ATP
B. to make carbon molecule intermediates for anabolism
C. to make NADH
D. to make NAD+
C. pyruvate - Answer 16. Which molecule typically serves as the final electron acceptor during
fermentation?
A. oxygen
B. NAD+
C. pyruvate
D. CO2
B. CO2 - Answer 17. Which fermentation product is important for making bread rise?
A. ethanol
B. CO2
C. lactic acid
D. hydrogen gas
B. pyruvate - Answer 18. Which of the following is not a commercially important fermentation
product?
A. ethanol
B. pyruvate
C. butanol
D. penicillin
anabolic - Answer 36. Processes in which cellular energy is used to make complex molecules
from simpler ones are described as _____.
oxidation - Answer 37. The loss of an electron from a molecule is called _____.
active site - Answer 38. The part of an enzyme to which a substrate binds is called _____.
