chem 210 exam 8 Questions and Correct
Answers, Complete Solution 2024.
T/F the majority of reactions of the urea cycle occur in the cytosol
true
T/F NADH yields 1.5 ATP molecules after donating electrons and hydrogen atoms
to the electron transport chain (ETC)
false
T/F GTP is invested in the urea cycle
false
T/F there are six complexes associated with the ETC
false
T/F in the production of ATP via ATP synthase, the H+ ions move from the
mitochondrial matrix to the intermembrane space
false
the urea cycle involves ____ reactions (only those in the cyclic portion of the
process)
A. 1
B. 2
C. 3
D. 4
E. 5
D. 4
which amino acids are involved in the urea cycle
A. ornithine
B. aspartate
C. threonine
D. both A and B
E. both A and C
D. both A and B
fumarate is converted to ___ for it to reenter the mitochondrion
A. ornithine
B. citrulline
C. malate
D. fumarase
E. ammonia
C. malate
urea is useful for excreting nitrogen from cells due to its:
A. ability to form london forces
B. high density of nitrogen atoms
C. large size
D. low melting point
E. both B and C
, B. high density of nitrogen atoms
____ is both a component of the urea cycle and the citric acid cycle
A. malate
B. acetyl-CoA
C. citrate
D. fumarate
E. none of the above
D. fumarate
deamination of an amino acid results in a carbon skeleton and in the production
of ____
A. NH2
B. NH
C. NO2
D. NH3
E. NH4+
E. NH4+
FADH2 donates electrons and H+ to complex___
A. I
B. II
C. III
D. IV
E. V
B. II
which of the ETC complexes do pump H+ ions?
A. complex I
B. complex III
C. complex IV
D. all of the above
E. none of the above
D. all of the above
what protein shuttles electrons from Complex III to Complex IV?
A. NADH dehydrogenase
B. cytochrome C (CoQ)
C. fumarase
D. cytochrome B
E. none of the above
B. cytochrome C (CoQ)
in what portion of the mitochondrion does the CAC take place?
A. matrix
B. intermembrane space
C. inner membrane
D. outer membrane
E. both B and C
A. matrix
at which complex does the following reaction take place?
O2 + 4e- + 4H+ -> 2H2O
Answers, Complete Solution 2024.
T/F the majority of reactions of the urea cycle occur in the cytosol
true
T/F NADH yields 1.5 ATP molecules after donating electrons and hydrogen atoms
to the electron transport chain (ETC)
false
T/F GTP is invested in the urea cycle
false
T/F there are six complexes associated with the ETC
false
T/F in the production of ATP via ATP synthase, the H+ ions move from the
mitochondrial matrix to the intermembrane space
false
the urea cycle involves ____ reactions (only those in the cyclic portion of the
process)
A. 1
B. 2
C. 3
D. 4
E. 5
D. 4
which amino acids are involved in the urea cycle
A. ornithine
B. aspartate
C. threonine
D. both A and B
E. both A and C
D. both A and B
fumarate is converted to ___ for it to reenter the mitochondrion
A. ornithine
B. citrulline
C. malate
D. fumarase
E. ammonia
C. malate
urea is useful for excreting nitrogen from cells due to its:
A. ability to form london forces
B. high density of nitrogen atoms
C. large size
D. low melting point
E. both B and C
, B. high density of nitrogen atoms
____ is both a component of the urea cycle and the citric acid cycle
A. malate
B. acetyl-CoA
C. citrate
D. fumarate
E. none of the above
D. fumarate
deamination of an amino acid results in a carbon skeleton and in the production
of ____
A. NH2
B. NH
C. NO2
D. NH3
E. NH4+
E. NH4+
FADH2 donates electrons and H+ to complex___
A. I
B. II
C. III
D. IV
E. V
B. II
which of the ETC complexes do pump H+ ions?
A. complex I
B. complex III
C. complex IV
D. all of the above
E. none of the above
D. all of the above
what protein shuttles electrons from Complex III to Complex IV?
A. NADH dehydrogenase
B. cytochrome C (CoQ)
C. fumarase
D. cytochrome B
E. none of the above
B. cytochrome C (CoQ)
in what portion of the mitochondrion does the CAC take place?
A. matrix
B. intermembrane space
C. inner membrane
D. outer membrane
E. both B and C
A. matrix
at which complex does the following reaction take place?
O2 + 4e- + 4H+ -> 2H2O
