Which of the following is not a net product of the citric acid cycle for each molecule of pyruvate generated in glycolysis?
Select one:
a. 1 ATP (GTP)
b. 1 acetyl coA
c. 3 NADH
d. 1 FADH2
Question 2
Which of the following is NOT an end product for an acetyl group that enters the citric acid cycle?
Select one:
a. ATP
b. NADH
c. FADH2
d. oxaloacetate
Question 3
Once they have been processed through the citric acid cycle, the acetyl-CoA molecules from a single glucose molecule produce:
Select one:
a. 2 ATP, 6 NADH, 4 CO2.
b. 6 NADH, 6 GTP.
c. 6 FADH2, 2 ATP, 6 CO2.
d. 6 GTP, 6 FADH2.
e. 4 CO2, 6 FADH2, 2 ATP.
Question 4
The products of the citric acid cycle breaking down 2 acetyl-CoA include 2 ATP (converted from GTP), 6 NADH and 2 FADH2.
Select one:
True
False
Which of the following is not a net product of the citric acid
cycle for each molecule of pyruvate generated in glycolysis?
d. 1 FADH2
Which of the following is NOT an end product for an acetyl group
that enters the citric acid cycle?
a. ATP
Once they have been processed through the citric acid cycle, the
acetyl-CoA molecules from a single glucose molecule produce:
a. 2 ATP, 6 NADH, 4 CO2.
The products of the citric acid cycle breaking down 2 acetyl-CoA
include 2 ATP (converted from GTP), 6 NADH and 2 FADH2.
True.
These are the direct questions, if you need any explantation etc just comment.
Which of the following is not a net product of the citric acid cycle for each...
In glycolysis, one glucose molecule yields pyruvates, ATP and NADH. Depending on the system used to shuttle the electrons from NADH into mitochondria, these NADH become NADH or FADH2. Converting the pyruvate(s) into acetyl-CoA's produces 2 NADH. One pyruvate/Two pyruvates pass(es) through the citric acid cycle starting with acetyl-CoA produces GTP, FADH2, and NADH. In the electron transport chain, each FADH2 generates ATP and each NADH ATP.
6. In mammals, which of the following does not occur during the citric acid cycle? A) formation of a-ketoglutarate. D) metabolism of acetate to carbon dioxide and water. B) net synthesis of oxaloacetate from acetyl-CoA. E) oxidation of acetyl-CoA. C) generation of NADH and FADHz. 7. Which of the following reaction generates GTP(ATP) in the CAC? A) Isocitrate to a-ketoglutarate. D) Fumarate to Malate. B) Malate to Oxaloacetate. E) Succinyl-CoA to Succinate. C) a-ketoglutarate to Succinyl-CoA.
acetyl-CoA COA The reactions of the citric acid cycle are shown in the image. As labeled in the diagram, reactions 1, 3, and 4 are regulation points in the citric acid cycle. oxaloacetate citrate synthase citrate NADH +Hi 7 malate dehydrogenase NAD malate aconitase 2 Which molecule inhibits reaction 1? isocitrate 7 fumarase NAD isocitrate dehydrogenase 3 NADH + H+ O citrate O NAD acetyl-CoA + CO2 fumarate C-ketoglutarate FADH succinate O dehydrogenase FAD O-ketoglutarate a dehydrogenase NAD + COA...
10. Given this picture of the citric acid cycle, identify four oxidoreductases, one ligase, and two lyases. 1. Hint: for lyases, look for a double bond that breaks to leave a single bond 2. Hint: for oxidoreductases, look for NADH or FADH2 production 3. Hint: for ligases, look for ATP or GTP production 4. Hint: for transferases, look for the enzyme that transfers the carbons from acetyl-coA onto another molecule 10. Given this picture of the citric acid cycle, identify...
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...
For every two (2) pyruvate fed into the Citric Acid Cycle, what are the resulting products? Select one: a. 2 FADH2, 6 NADPH, 2 ATP, 2 CO2 b. 1 FADH2, 3 NADH, 1 ATP, 2 CO2 c. 1 FADH2, 1 NADPH, 1 ATP, 2 CO2 d. 2 FADH2, 6 NADH, 2 ATP, 4 CO2
1) In the CAC (citric acid cycle)... (Choose All) A) CO2 is released as a waste product B) electron carriers are reduced C) ATP is synthesized via oxidative phosphorylation D) acetyl CoA is completely oxidized 2) During the CAC (citric acid cycle), the two acetyl CoAs (what remains from one glucose molecule) yield...(Choose All) A) 8 reduced electron carriers B) 2 ATPs C) 2 oxaloacetate molecules D) 4 CO2
Question 5 1 pts What is the main purpose of the Kreb's cycle (also known as the TCA or Citric Acid cycle) To produce ATP from the energy stored in acetyl-CoA To oxidize pyruvate and produce NAD and FADH2 To recycle NADH for use back in glycolysis To produce carbon dioxide by the reduction of pyruvate To produce NADH/FADH2 from the oxidation of acetyl-CoA
This is a biochemistry question i need answers to 6-12 What is the purpose of fermentation of pyruvate to lactate or ethanol? to produce additional ATP to provide a precursor for lactose synthesis to regenerate NAD* for glycolysis to prevent pyruvate from entering the TCA cycle none of the above Pyruvate kinase catalyzes what reaction? conversion of phosphoenol-pyruvate to pyruvate phosphorylation of pyruvate to 3-phosphoglycerate conversion of pyruvate to acetaldehyde and CO_2 conversion of pyruvate to lactate conversion of pyruvate...
QUESTION 65 Free energy (delta G) is higher during the citric acid cycle than during glycolysis. Despite this, only two molecules of ATP will be generated in the krebs cycle. Most of the remaining free energy that is released during the krebs cycle will be O a. Used to synthesize GTP O b. Converted into kinetic energy O c.Lost as heat d. Used to reduce pyruvate Oe. Used to reduce electron carriers such as NADH and FADH2