What is the role of Coenzyme A? A) It gets broken down to make ATP B)...
What is the role of Coenzyme A?
A) It gets broken down to make ATP
B) It gets attached to a two carbon molecule
C) It is an enzyme that breaks down pyruvate
D) It is an enzyme that will break down acetyl
E) None of the above
Homework Answers
Answer. Option b
Coenzyme A contains a thiol group that reacts with the carboxylic acids to form the thiol esters.
Acetyl group unites with Coenzyme A to form Acetyl-CoA, this marks the initiation of Kreb cycle in the mitochondria.
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What is the role of Coenzyme A?
A) It gets broken down to make ATP
B)...
7) What enzyme does a retrovirus use to make viral DNA? A) Reverse transcriptase B) DNA...
7) What enzyme does a retrovirus use to make viral DNA? A) Reverse transcriptase B) DNA polymerase C) Transcriptionase D) RNA polymerase 8) Pyruvate contains how many carbon atoms? A) 3 B) 4 C) 5 9) Which of the following contains the vitamin niacin, B3, as part of its structure? A) NADH B) ATP C) Coenzyme Q D) 6 D) FADH2 10) The final product of aerobic glycolysis is: A) lactate B) ethanol C) acetyl COA D) pyruvate
) the system's entropy D) the cell's energy equilibrium E) the heat content of a chemical...
) the system's entropy D) the cell's energy equilibrium E) the heat content of a chemical system In the presence of oxygen, the three-carbon however, the pyruvate (1) loses a carbon, which is given off as a m compound called acetate, and (3) is bonded to coenzyme A. compound pyruvate can be catabolized in the citric acid cycle. First, olecule of CO2, (2) is oxidized to form a two-carbon 10) These three steps result in the formation of 10) A)...
What type of gradient is critical to ATP formation by oxidativephosphorylation?A.sodium ionB....
What type of gradient is critical to ATP formation by oxidative phosphorylation?A.sodium ionB.chloride ionC.protonD.potassium ionE.None of the answers is correct.Which of the following citric acid cycle intermediates would become depleted if malonate, a competitive inhibitor of succinate dehydrogenase, were present?A.citrateB.α-ketoglutarateC.succinateD.malateE.None of the answers is correct.Which of the following correctly pairs a coenzyme with the enzyme of the pyruvate dehydrogenase complex with which it is associated?A.coenzyme A: pyruvate dehydrogenaseB.NAD+: dihydrolipoyl dehydrogenaseC.lipoic acid: pyruvate dehydrogenase kinaseD.thiamine pyrophosphate: dihydrolipoyl dehydrogenaseE.FAD: dihydrolipoyl transacetylaseWhich of...
42. The end result of glycolysis includes the a creation of 38 molecules of ATP. b....
42. The end result of glycolysis includes the a creation of 38 molecules of ATP. b. reduction of eight molecules of NAD to NADH. c.formation of two molecules of pyruvate. d. conversion of one molecule of glucose to lactic acid. e. None of the above 43. During the energy investing portion of glycolysis, the phosphates from ATP molecules are a. added to the first and sixth carbons of glucose. b. added to the second and fourth carbons of glucose. c....
I1. Mammals lack the enzyme a. Lactate dehydrogenase b. Pyruvate kinase Alcohol Dehydrogenase c. d. Pyruvate...
I1. Mammals lack the enzyme a. Lactate dehydrogenase b. Pyruvate kinase Alcohol Dehydrogenase c. d. Pyruvate decarboxylase None of the above are correct e. 12. The first reaction of the Krebs cycle combines Oxaloacetate and Acetyl CoA to make Citrate b. a. Malate and NADH to make Citrate a-ketoglutarate and citrate to make CO2 d. c- Succinate and Citrate to make Oxaloacetate 13. The electrons held by NADH and FADH, are donated to the which complexes in the ETC respectively?...
13) When a molecule of glucose gets split during the energy investment phase of glycolysis, the...
13) When a molecule of glucose gets split during the energy investment phase of glycolysis, the products are two molecules of that then move to the energy payoff phase. A) Glyceraldehyde-3-phospahte B) Pyruvate C) Acetyl-COA D) NADH 14) Following glycolysis and the citric acid cycle, but before the electron transport chain and oxidative phosphorylation, the carbon skeleton of glucose has been broken down to CO2 with some net gain of ATP. Most of the energy from the original glucose molecule...
9. Which of the listed enzymes does not require biotin as coenzyme ?: a pyruvate carboxylase b. a...
9. Which of the listed enzymes does not require biotin as coenzyme ?: a pyruvate carboxylase b. acetyl-SCoA carboxylase c. propionyl-SCoA carboxylase d. PEP carboxykinase The source of acetyl-SCoA in the cytoplasm is: a carnitine b. oxaloacetate citrate d pyruvate e. lactate 10.
9. Which of the listed enzymes does not require biotin as coenzyme ?: a pyruvate carboxylase b. acetyl-SCoA carboxylase c. propionyl-SCoA carboxylase d. PEP carboxykinase The source of acetyl-SCoA in the cytoplasm is: a carnitine b. oxaloacetate...
Once absorbed from circulation, branched chain amino acids can be broken down to Acetyl CoA by...
Once absorbed from circulation, branched chain amino acids can be broken down to Acetyl CoA by the BCKD enzyme complex. If one Valine produces one Acetyl coA and no energy is captured during that reaction, what is the total theoretical yield of ATP from one molecule of Valine? Assume O2 is readily available.
16 Which step consists of a phosphorylation reaction in which ATP is the phosphate source? b...
16 Which step consists of a phosphorylation reaction in which ATP is the phosphate source? b B с с d D е Е 17 Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed during glycolysis? a 0% b 2% c 10% d 38% @ 100% 18 In addition to ATP, what are the end products of glycolysis? a CO2 and H2O b CO2 and pyruvate NADH and pyruvate d CO, and NADH e H2O, FADH2, and citrate 19...
URGENT I NEED HELP AND I HAVE A DEADLINE. PLEASE AND THANK YOU. 1. Which kind...
URGENT I NEED HELP AND I HAVE A DEADLINE. PLEASE AND THANK YOU. 1. Which kind of pathway describes glycolysis best? a. catabolic and synthetic b. aerobic and catabolic c. glycolytic and aerobic d. anaerobic and catabolic 2. which reaction occurs most often during aerobic cellular respiration? a. condensation b. phosphorylation c. redox d. hydrolysis 3. What is the function of oxygen in oxidative phosphorylation? a. to hydrolyze carbohydrates b. to accept electrons from the reduction of NADP c. to...
7) What enzyme does a retrovirus use to make viral DNA? A) Reverse transcriptase B) DNA polymerase C) Transcriptionase D) RNA polymerase 8) Pyruvate contains how many carbon atoms? A) 3 B) 4 C) 5 9) Which of the following contains the vitamin niacin, B3, as part of its structure? A) NADH B) ATP C) Coenzyme Q D) 6 D) FADH2 10) The final product of aerobic glycolysis is: A) lactate B) ethanol C) acetyl COA D) pyruvate
) the system's entropy D) the cell's energy equilibrium E) the heat content of a chemical system In the presence of oxygen, the three-carbon however, the pyruvate (1) loses a carbon, which is given off as a m compound called acetate, and (3) is bonded to coenzyme A. compound pyruvate can be catabolized in the citric acid cycle. First, olecule of CO2, (2) is oxidized to form a two-carbon 10) These three steps result in the formation of 10) A)...
42. The end result of glycolysis includes the a creation of 38 molecules of ATP. b. reduction of eight molecules of NAD to NADH. c.formation of two molecules of pyruvate. d. conversion of one molecule of glucose to lactic acid. e. None of the above 43. During the energy investing portion of glycolysis, the phosphates from ATP molecules are a. added to the first and sixth carbons of glucose. b. added to the second and fourth carbons of glucose. c....
I1. Mammals lack the enzyme a. Lactate dehydrogenase b. Pyruvate kinase Alcohol Dehydrogenase c. d. Pyruvate decarboxylase None of the above are correct e. 12. The first reaction of the Krebs cycle combines Oxaloacetate and Acetyl CoA to make Citrate b. a. Malate and NADH to make Citrate a-ketoglutarate and citrate to make CO2 d. c- Succinate and Citrate to make Oxaloacetate 13. The electrons held by NADH and FADH, are donated to the which complexes in the ETC respectively?...
13) When a molecule of glucose gets split during the energy investment phase of glycolysis, the products are two molecules of that then move to the energy payoff phase. A) Glyceraldehyde-3-phospahte B) Pyruvate C) Acetyl-COA D) NADH 14) Following glycolysis and the citric acid cycle, but before the electron transport chain and oxidative phosphorylation, the carbon skeleton of glucose has been broken down to CO2 with some net gain of ATP. Most of the energy from the original glucose molecule...
9. Which of the listed enzymes does not require biotin as coenzyme ?: a pyruvate carboxylase b. acetyl-SCoA carboxylase c. propionyl-SCoA carboxylase d. PEP carboxykinase The source of acetyl-SCoA in the cytoplasm is: a carnitine b. oxaloacetate citrate d pyruvate e. lactate 10.
9. Which of the listed enzymes does not require biotin as coenzyme ?: a pyruvate carboxylase b. acetyl-SCoA carboxylase c. propionyl-SCoA carboxylase d. PEP carboxykinase The source of acetyl-SCoA in the cytoplasm is: a carnitine b. oxaloacetate...
16 Which step consists of a phosphorylation reaction in which ATP is the phosphate source? b B с с d D е Е 17 Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed during glycolysis? a 0% b 2% c 10% d 38% @ 100% 18 In addition to ATP, what are the end products of glycolysis? a CO2 and H2O b CO2 and pyruvate NADH and pyruvate d CO, and NADH e H2O, FADH2, and citrate 19...
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