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Homework Answers
c) The CAC would slow down/stop (Option C is correct)
Note- This will happen as Increase in the ratio
of [NADH]/[NAD+] will actually inhibit the
CAC via mass action at all the
3 stages that involve the NAD reduction and the high amounts of
[NADH] will cause the shifting of the equilibrium towards
[NAD+]
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How would you expect the operation of the citric acid cycle to respond to a rapid...
Why does an increase in NADH/NAD+ ratio cause an increase in the rate of citric acid...
Why does an increase in NADH/NAD+ ratio cause an increase in the rate of citric acid cycle?
1. Select the TRUE statement about the citric acid cycle. A. Isocitrate dehydrogenase is a multienzyme...
1. Select the TRUE statement about the citric acid cycle. A. Isocitrate dehydrogenase is a multienzyme complex that is very similar to the pyruvate dehydrogenase complex B. The two decarboxylation steps occur right after each other, first via oxidative alpha- decarboxylation, then via oxidative beta- decarboxylation. C. In one turn of the cycle, the two carbons that enter the cycle as acetyl CoA are the same two carbons that are released as CO2. D. A flavin containing dehydrogenase enzymes oxidizes...
The succinyl CoA to citrate pathway of the citric acid cycle is shown below. Identify the...
The succinyl CoA to citrate pathway of the citric acid cycle is
shown below. Identify the missing intermediates by dragging the
item to the appropriate position. Then identify the missing
cofactors below.
I have pulled up the "drop down" menu for
the options for the "Cofactors"
Citrate H2C-CO2 H2C-co Succinyl CoA H2O AcCoA HO CO2 H2 GDP+P GTP CoA-SH CoA-SH CoA CO2 HO-C-H CH2 CO2 CO2 CO2 CH2 CH2 CO2 CO2 H-C-OH CH2 CO2 2 H CO2 CH2 CO2 factor...
1220 Which is not a result of one pass through the citric acid cycle? A. 2...
1220 Which is not a result of one pass through the citric acid cycle? A. 2 molecules of Co, are produced. B. 3 molecules of NADH are produced from NAD C. 1 substrate-level phosphorylation occurs to produce GTP or ATP. D. 2 QH, are produced by the succinate dehydrogenase complex. E. The oxidation of L-malate regenerates oxaloacetate. 2012 Which enzyme catalyzes a substrate-level phosphorylation reaction? A. Isocitrate dehydrogenase B. Succinyl-CoA synthetase C. Fumarase D. Aconitase E. Citrate synthase 14.30 What...
QUESTION 1 Which of the following is NOT a product of the Citric Acid Cycle? O...
QUESTION 1 Which of the following is NOT a product of the Citric Acid Cycle? O Citric acid O CO2 O NADH O FADH2 O All of the above are products QUESTION 2 What do glycolysis and the Citric Acid Cycle have in common? O They both involve oxidation of glucose. O They both occur in the cytoplasm. O They both produce CO2 O They both produce ATP and NADH QUESTION 3 Pyrimidines are synthesized through a long series of...
In 1937 Hans Krebs deduced the operation of the citric acid cycle from careful observations on...
In 1937 Hans Krebs deduced the operation of the
citric acid cycle from careful observations on the oxidation of
carbon compounds in minced preparations of pigeon flight muscle.
(Pigeon breast is a rich source of mitochondria, but the function
of mitochondria was unknown at the time.) The consumption of O2 and
the production of CO2 were monitored with a manometer, which
measure changes in volume of a closed system at a constant pressure
and temperature. Standard chemical methods were used...
In 1937 Hans Krebs deduced the operation of the citric acid cycle from careful observations on...
In 1937 Hans Krebs deduced the operation of the citric acid
cycle from careful observations on the oxidation of carbon
compounds in minced preparations of pigeon flight muscle. (Pigeon
breast is a rich source of mitochondria, but the function of
mitochondria was unknown at the time.) The consumption of O2 and
the production of CO2 were monitored with a manometer, which
measure changes in volume of a closed system at a constant pressure
and temperature. Standard chemical methods were used...
Question 2 (20 pts) In 1937 Hans Krebs deduced the operation of the citric acid cycle...
Question 2 (20 pts)
In 1937 Hans Krebs deduced the operation of the citric acid
cycle from careful observations on the oxidation of carbon
compounds in minced preparations of pigeon flight muscle. (Pigeon
breast is a rich source of mitochondria, but the function of
mitochondria was unknown at the time.) The consumption of O2 and
the production of CO2 were monitored with a manometer, which
measure changes in volume of a closed system at a constant pressure
and temperature. Standard...
if there were four molecules of glucose how many ATP molecules would you expect to be...
if there were four molecules of glucose how many ATP molecules would you expect to be rpoduced through the Krebs cycle. A)16 B)8-10 C)400 D)25 E)98 Which of the follwoing best characterize the first three reactions involved in glycolysis A) The double phosphorylation of fructose, followed by the splitting of the fructose into 3-carbon compounds, and then oxidation of NAD+ B) Depening upon the availability of oxygen the production of glucose-6-phosphate, followed by the oxidation of fructose and finally the...
Q2. The release of ATP by the beta subunit is most directly dependent on: Select ONE...
Q2.
The release of ATP by the beta subunit is most directly
dependent on:
Select ONE option:
1. the flow of protons from the intermembrane space to the
matrix.
2. the rotation of the c-ring in the membrane.
3. the passage of electrons along the electron transport
chain.
4. a conformational change in the beta subunit.
Q3.
What defines the direction of rotation of the c-ring in the F0
complex?
(Select ALL that apply.)
1. Amino acids side chains in...
The succinyl CoA to citrate pathway of the citric acid cycle is
shown below. Identify the missing intermediates by dragging the
item to the appropriate position. Then identify the missing
cofactors below.
I have pulled up the "drop down" menu for
the options for the "Cofactors"
Citrate H2C-CO2 H2C-co Succinyl CoA H2O AcCoA HO CO2 H2 GDP+P GTP CoA-SH CoA-SH CoA CO2 HO-C-H CH2 CO2 CO2 CO2 CH2 CH2 CO2 CO2 H-C-OH CH2 CO2 2 H CO2 CH2 CO2 factor...
1220 Which is not a result of one pass through the citric acid cycle? A. 2 molecules of Co, are produced. B. 3 molecules of NADH are produced from NAD C. 1 substrate-level phosphorylation occurs to produce GTP or ATP. D. 2 QH, are produced by the succinate dehydrogenase complex. E. The oxidation of L-malate regenerates oxaloacetate. 2012 Which enzyme catalyzes a substrate-level phosphorylation reaction? A. Isocitrate dehydrogenase B. Succinyl-CoA synthetase C. Fumarase D. Aconitase E. Citrate synthase 14.30 What...
QUESTION 1 Which of the following is NOT a product of the Citric Acid Cycle? O Citric acid O CO2 O NADH O FADH2 O All of the above are products QUESTION 2 What do glycolysis and the Citric Acid Cycle have in common? O They both involve oxidation of glucose. O They both occur in the cytoplasm. O They both produce CO2 O They both produce ATP and NADH QUESTION 3 Pyrimidines are synthesized through a long series of...
In 1937 Hans Krebs deduced the operation of the
citric acid cycle from careful observations on the oxidation of
carbon compounds in minced preparations of pigeon flight muscle.
(Pigeon breast is a rich source of mitochondria, but the function
of mitochondria was unknown at the time.) The consumption of O2 and
the production of CO2 were monitored with a manometer, which
measure changes in volume of a closed system at a constant pressure
and temperature. Standard chemical methods were used...
In 1937 Hans Krebs deduced the operation of the citric acid
cycle from careful observations on the oxidation of carbon
compounds in minced preparations of pigeon flight muscle. (Pigeon
breast is a rich source of mitochondria, but the function of
mitochondria was unknown at the time.) The consumption of O2 and
the production of CO2 were monitored with a manometer, which
measure changes in volume of a closed system at a constant pressure
and temperature. Standard chemical methods were used...
Question 2 (20 pts)
In 1937 Hans Krebs deduced the operation of the citric acid
cycle from careful observations on the oxidation of carbon
compounds in minced preparations of pigeon flight muscle. (Pigeon
breast is a rich source of mitochondria, but the function of
mitochondria was unknown at the time.) The consumption of O2 and
the production of CO2 were monitored with a manometer, which
measure changes in volume of a closed system at a constant pressure
and temperature. Standard...
Q2.
The release of ATP by the beta subunit is most directly
dependent on:
Select ONE option:
1. the flow of protons from the intermembrane space to the
matrix.
2. the rotation of the c-ring in the membrane.
3. the passage of electrons along the electron transport
chain.
4. a conformational change in the beta subunit.
Q3.
What defines the direction of rotation of the c-ring in the F0
complex?
(Select ALL that apply.)
1. Amino acids side chains in...
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