Homework Answers
NAD - nicotinamide adenine dinucleotide is a Co enzyme found in all living cell. NAD transfer energy from fatty acid and glucose to the mitochondria. For example - in the process of glycolysis glucose is oxidized to form pyruvic acid. The oxidizing agent is NAD which reduced and converted into NADH
2NAD + +glucose + 2 ADP = 2pyruvate+ 2 NADH + 2ATP
The reaction pyruvate + CoA + NAD + rightarrow acetyl CoA + Co2 + NADH, is...
The reaction pyruvate + CoA + NAD + rightarrow acetyl CoA + Co2 + NADH, is catalyzed by pyruvate dehydrogenase. If an inhibitor of this enzyme was added to cells, then ___ levels in the cytoplasm would increase. A. Oxygen B. NADH C. Pyruvate D. Acetyl CoA E. CO2 Which of the following types cells is matched with the WRONG stem cell category? A. embryonic of stem cells: pluripotent B. embryonic germ cells: pluripotent C. hematopoietic stem cells: multipotent D....
The step in metabolism that converts pyruvate to acetyl-CoA involves pyruvate dehydrogenase complex is shown. NADH...
The step in metabolism that converts pyruvate to acetyl-CoA involves pyruvate dehydrogenase complex is shown. NADH NAD Correm A CEO CH co G Pyruvate AwA What is true about this step? ATP is required but not shown The enzyme is a multi-enzyme complex involving TPP. It requires O2 It is an easily reversible reaction
4. (20 points) The reaction of pyruvate to acetyl-CoA and CO2 is the bridge reaction between...
4. (20 points) The reaction of pyruvate to acetyl-CoA and CO2 is the bridge reaction between glycolysis and the citric acid cycle. The carbon atoms in pyruvate are numbered and where they end up in the products are indicated CO0Θ 2 C=O + HS-CoA 3 CH3 Pyruvate S-COA 2C=O 3 CH3 Acetyl CoA Pyruvate dehydrogenase +1 CO2 a) Is C atom 1 in CO2 in a more reduced state or more oxidized state compared to its state in pyruvate? Why?...
during cellular respiration how many NADH are produced during the conversion of pyruvate to acetyl CoA...
during cellular respiration how many NADH are produced during
the conversion of pyruvate to acetyl CoA per glucose
molecule?
During cellular respiration how many NADH are produced during the conversion of pyruvate to acetyl CoA per glucose molecule? 00 ООО
CoA-SH/Acetyl-S-CoA and NAD+/NADH + H+ full names of these two coenzymes and what are the chemical...
CoA-SH/Acetyl-S-CoA and NAD+/NADH + H+ full names of these two coenzymes and what are the chemical groups that are active in these molecules
FAD lipoamide dihydrolipoyl dehydrogenase (E3) pyruvate dehydrogenase (EI) FADH, NAD dihydrolipoyl transacetylase (E2) >NADH + H...
FAD lipoamide dihydrolipoyl dehydrogenase (E3) pyruvate dehydrogenase (EI) FADH, NAD dihydrolipoyl transacetylase (E2) >NADH + H HOC CH CH3-C- > CH3-C-s pyruvate CH3-C-COA acetyl-CoA COA
CoA-SH/Acetyl-S-CoA and NAD+/NADH + H+ What vitamin or vitamins will, when modified, contribute to the structure...
CoA-SH/Acetyl-S-CoA and NAD+/NADH + H+ What vitamin or vitamins will, when modified, contribute to the structure of these molecules
Oxaloacetic Acetyl Coa » Coa Citric acid acid NADH NAD Malic acid Isocitric acid Fumaric acid...
Oxaloacetic Acetyl Coa » Coa Citric acid acid NADH NAD Malic acid Isocitric acid Fumaric acid NAD CO2 NADH FADH, FAD+ Q-ketoglutaric acid Succinic acid CO2 NAD+ Succinyl-CoA NADH ADP+P; ATP Figure 9.1 2 26) Refer to Figure 9.1. If citric acid has six carbon atoms, how many carbon atoms does succinic acid have? A) 4 B) 12 C)5 D)1 E) 6 27) Refer to Figure 9.1. Starting with one acetyl CoA molecule, what is the maximum number of ATP...
What is the reducing agent (or electron donor) in the following reaction? Pyruvate + NADH +...
What is the reducing agent (or electron donor) in the following reaction? Pyruvate + NADH + H^+ rightarrow Lactate + NAD^+ A. oxygen B. NADH+H^+ C. NAD^+ D. lactate E. pyruvate Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier known as the reaction's A. entropy B. heat content. C. activation energy. D. endothermic level. E. free-energy content. What does the chemiosmotic process in mitochondria involve? A. establishment of a proton gradient...
1. Which one of the following shows the correct sequence of energy transitions during chemiosmosis? A. NADH → electron acceptors → proton gradient → ATP synthase → ATP B. NADH → NAD+ → FADH2 → electro...
1. Which one of the following shows the correct sequence of energy transitions during chemiosmosis? A. NADH → electron acceptors → proton gradient → ATP synthase → ATP B. NADH → NAD+ → FADH2 → electron acceptors → ATP C. carbohydrates → acetyl CoA → CO2 → proton gradient → ATP D. NAD+ → NADH → protons → ADP → ATP E. glucose → pyruvate → acetyl CoA → NADH → ATP 2. Facultative anaerobes: A. prefer carbon dioxide. B....
The reaction pyruvate + CoA + NAD + rightarrow acetyl CoA + Co2 + NADH, is catalyzed by pyruvate dehydrogenase. If an inhibitor of this enzyme was added to cells, then ___ levels in the cytoplasm would increase. A. Oxygen B. NADH C. Pyruvate D. Acetyl CoA E. CO2 Which of the following types cells is matched with the WRONG stem cell category? A. embryonic of stem cells: pluripotent B. embryonic germ cells: pluripotent C. hematopoietic stem cells: multipotent D....
The step in metabolism that converts pyruvate to acetyl-CoA involves pyruvate dehydrogenase complex is shown. NADH NAD Correm A CEO CH co G Pyruvate AwA What is true about this step? ATP is required but not shown The enzyme is a multi-enzyme complex involving TPP. It requires O2 It is an easily reversible reaction
4. (20 points) The reaction of pyruvate to acetyl-CoA and CO2 is the bridge reaction between glycolysis and the citric acid cycle. The carbon atoms in pyruvate are numbered and where they end up in the products are indicated CO0Θ 2 C=O + HS-CoA 3 CH3 Pyruvate S-COA 2C=O 3 CH3 Acetyl CoA Pyruvate dehydrogenase +1 CO2 a) Is C atom 1 in CO2 in a more reduced state or more oxidized state compared to its state in pyruvate? Why?...
during cellular respiration how many NADH are produced during
the conversion of pyruvate to acetyl CoA per glucose
molecule?
During cellular respiration how many NADH are produced during the conversion of pyruvate to acetyl CoA per glucose molecule? 00 ООО
FAD lipoamide dihydrolipoyl dehydrogenase (E3) pyruvate dehydrogenase (EI) FADH, NAD dihydrolipoyl transacetylase (E2) >NADH + H HOC CH CH3-C- > CH3-C-s pyruvate CH3-C-COA acetyl-CoA COA
Oxaloacetic Acetyl Coa » Coa Citric acid acid NADH NAD Malic acid Isocitric acid Fumaric acid NAD CO2 NADH FADH, FAD+ Q-ketoglutaric acid Succinic acid CO2 NAD+ Succinyl-CoA NADH ADP+P; ATP Figure 9.1 2 26) Refer to Figure 9.1. If citric acid has six carbon atoms, how many carbon atoms does succinic acid have? A) 4 B) 12 C)5 D)1 E) 6 27) Refer to Figure 9.1. Starting with one acetyl CoA molecule, what is the maximum number of ATP...
What is the reducing agent (or electron donor) in the following reaction? Pyruvate + NADH + H^+ rightarrow Lactate + NAD^+ A. oxygen B. NADH+H^+ C. NAD^+ D. lactate E. pyruvate Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier known as the reaction's A. entropy B. heat content. C. activation energy. D. endothermic level. E. free-energy content. What does the chemiosmotic process in mitochondria involve? A. establishment of a proton gradient...
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