BIO 322- EXAM 3 QUESTIONS AND CORRECT
100% VERIFIED/DETAILED ANSWERS 2024/2025
LATEST UPDATED BEST RATED TO SCORE A+ FOR
PASS
Which of the following statements is FALSE?
-All of the protein complexes of the mitochondrial respiratory chain are bound
in the inner mitochondrial membrane
-Cytochrome c and coenzyme Q are both soluble electron carriers that are
loosely attached to the outside of the inner mitochondrial membrane.
-Oxygen is reduced to water at complex IV of the mitochondrial respiratory
chain.
-During electron transport protons are pumped across the inner mitochondrial
membrane from the matrix to the intermembrane space. - CORRECT ANSWERS
Cytochrome c and coenzyme Q are both soluble electron carriers that are
loosely attached to the outside of the inner mitochondrial membrane.
Which of the following is NOT an electron acceptor in the mitochondrial
respiratory chain?
CoQH2
FMN
Fe3+
FAD - CORRECT ANSWERS CoQH2
Electron transport through NADH-Coenzyme Q reductase (Complex I) is
accompanied by transfer of ________ protons from the matrix to the
intermembrane space. (answer with the number. e.g.: 6) - CORRECT ANSWERS
4
, BIO 322- EXAM 3 QUESTIONS AND CORRECT
100% VERIFIED/DETAILED ANSWERS 2024/2025
LATEST UPDATED BEST RATED TO SCORE A+ FOR
PASS
How do the mitochondria maintain the chemiosmotic gradient used for the
electron transport chain? - CORRECT ANSWERS They continuously pump
protons from the mitochondrial matrix into the intermembrane space
Many of the carriers in the electron transport chain are cytochromes. The
central component of the cytochrome capable of redox reactions is
__________. - CORRECT ANSWERS an iron atom
FADH2 and NADH are both electron carriers that bring electrons to the inner
mitochondrial membrane to be used during the electron transport chain (ETC).
FADH2, however, produces less ATP than NADH. Which of the following choices
correctly explains why this occurs? - CORRECT ANSWERS FADH2 enters the ETC
at a later point than NADH
Which of the following choices most accurately explains why oxygen is needed
for aerobic respiration? - CORRECT ANSWERS Oxygen acts as the final electron
acceptor at the end of the electron transport chain
Which statement most accurately describes the citric acid cycle? - CORRECT
ANSWERS It plays a central role in key metabolic processes in the cell, with
many metabolic intermediates leaving and entering.
Which compound is NOT a product of the reaction catalyzed by the pyruvate
dehydrogenase complex?
CO2
NADH
100% VERIFIED/DETAILED ANSWERS 2024/2025
LATEST UPDATED BEST RATED TO SCORE A+ FOR
PASS
Which of the following statements is FALSE?
-All of the protein complexes of the mitochondrial respiratory chain are bound
in the inner mitochondrial membrane
-Cytochrome c and coenzyme Q are both soluble electron carriers that are
loosely attached to the outside of the inner mitochondrial membrane.
-Oxygen is reduced to water at complex IV of the mitochondrial respiratory
chain.
-During electron transport protons are pumped across the inner mitochondrial
membrane from the matrix to the intermembrane space. - CORRECT ANSWERS
Cytochrome c and coenzyme Q are both soluble electron carriers that are
loosely attached to the outside of the inner mitochondrial membrane.
Which of the following is NOT an electron acceptor in the mitochondrial
respiratory chain?
CoQH2
FMN
Fe3+
FAD - CORRECT ANSWERS CoQH2
Electron transport through NADH-Coenzyme Q reductase (Complex I) is
accompanied by transfer of ________ protons from the matrix to the
intermembrane space. (answer with the number. e.g.: 6) - CORRECT ANSWERS
4
, BIO 322- EXAM 3 QUESTIONS AND CORRECT
100% VERIFIED/DETAILED ANSWERS 2024/2025
LATEST UPDATED BEST RATED TO SCORE A+ FOR
PASS
How do the mitochondria maintain the chemiosmotic gradient used for the
electron transport chain? - CORRECT ANSWERS They continuously pump
protons from the mitochondrial matrix into the intermembrane space
Many of the carriers in the electron transport chain are cytochromes. The
central component of the cytochrome capable of redox reactions is
__________. - CORRECT ANSWERS an iron atom
FADH2 and NADH are both electron carriers that bring electrons to the inner
mitochondrial membrane to be used during the electron transport chain (ETC).
FADH2, however, produces less ATP than NADH. Which of the following choices
correctly explains why this occurs? - CORRECT ANSWERS FADH2 enters the ETC
at a later point than NADH
Which of the following choices most accurately explains why oxygen is needed
for aerobic respiration? - CORRECT ANSWERS Oxygen acts as the final electron
acceptor at the end of the electron transport chain
Which statement most accurately describes the citric acid cycle? - CORRECT
ANSWERS It plays a central role in key metabolic processes in the cell, with
many metabolic intermediates leaving and entering.
Which compound is NOT a product of the reaction catalyzed by the pyruvate
dehydrogenase complex?
CO2
NADH
