Homework Answers
When the electron transfer from succinate dehydrogenase to the coQ is intercepted, the FADH2 will not able to pass its electrons to the electron transport system and thus the total number of ATP molecules synthesized per molecule will be less by 4 ATP molecules.
Krebs cycle will also come to a halt as the succinate dehydrogenase one of the important enzymes of the cycle.
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synthesized per molecule of glucose oxidized? 2. You have added to a cell a newly developed...
Please explain why as well. 4. On average, how many ATP molecules are synthesized per NADH?...
Please explain why as well. 4. On average, how many ATP molecules are synthesized per NADH? A. 0 B. 1 C. 2 D. 3 E. 4 5. The FADH2 that is produced donates its electrons directly to A. Complex I B. Complex III C. Complex IV D. Coenzyme Q E. Cytochrome C F. O2 6. In the Binding Change Mechanism the 3 conformational states that occur in the F1 subunit of ATP synthase depend on A. interaction with b subunits...
21) Which process in eukaryotic cells will normally proceed whether O2 is present or absent? A)...
21) Which process in eukaryotic cells will normally proceed whether O2 is present or absent? A) oxidative phosphorylation B) glycolysis C) Krebs cycle D) electron transport 22) The direct energy source that drives ATP synthesis during respiratory oxidative phosphorylation is A) thermodynamically favorable transfer of phosphate from glycolysis and Krebs cycle intermediate molecules of ADP. B) the thermodynamically favorable flow of electrons from NADH to the mitochondrial electron transport carriers. C) the final transfer of electrons to oxygen. D) the...
In redox reactions Protons are transferred from one molecule to another One substance loses electrons and...
In redox reactions Protons are transferred from one molecule to another One substance loses electrons and the other gains electrons A substance that loses electrons is reduced, while a substance e that gains electrons are oxidized B and c are both correct Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present of not? Electron transport Glycolysis The citric acid cycle Oxidative phosphorylation Chemiosmosis How many carbon atoms are fed into the cirtic acid cycle as a...
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?...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
Q1: What are catabolism and anabolism (4 marks)? Q2: Under aerobic respiration, a molecule glucose is...
Q1: What are catabolism and anabolism (4 marks)? Q2: Under aerobic respiration, a molecule glucose is oxidized to generate 36 ATPs in eukaryote cell while 38 ATPs in prokaryote cell. Explain how this difference occurred (6 marks). Q3: Why aerobic respiration could produce more energy (ATP molecules) than anaerobic respiration and fermentation? By using glucose as the substrate, illustrate how ATP molecules are being produced in each case (15 marks). Q4: "Most microbes use carbohydrate (glucose) as the energy sources...
1. When ONE molecule of glucose is totally oxidized to CO2 and H2O, how many net...
1. When ONE molecule of glucose is totally oxidized to CO2 and H2O, how many net ATP molecules (or GTP equivalents) are made by oxidative phosphorylation, relative to the maximum yield?A. 30 out of 30 B. 12 out of 24 C. 26 out of 30 D. 4 out of 24 E. 4 out of 30 would the answer be E or C 2. The SEQUENCE OF THREE REACTIONS ( oxidation, hydration, and oxidation) occurs in which one(s)of the following pathways?...
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring...
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring compound that binds to protein complex IV of the mitochondrial electron transport chain and prevents transfer of electrons from the protein. Metformin: At the cellular level, chemically synthesized metformin, a drug commonly prescribed for Type 2 diabetes, inhibits mitochondrial respiration by blocking complex I. Dinitrophenol: Dinitrophenol is a metabolic poison that can be sold legally as a pesticide. Although it is lethal to humans,...
que photosynthetic pigment instead of chlorophyll. The leaves of this plant always appear to be green....
que photosynthetic pigment instead of chlorophyll. The leaves of this plant always appear to be green. What colors of light would be least effective for photosynthesis for this plant? A plant has a unique photo yellow, not green. What co A. green B. white C. red D. blue E yellow 25. Which of the following is NOT a product of the light reactions? A. NADPH В. АТР C. oxygen D. carbon dioxide 26. Which of the following are products of...
22. Lipids would produce with the carbohydrate of same weight. energy compared (a) more (b) less...
22. Lipids would produce with the carbohydrate of same weight. energy compared (a) more (b) less c) the same amount 23. Where are the proteins of electron-transport chain located in mitochondria for the cellular respiration? (a) matrix (c) inner membrane (b) outer membrane (d) both membranes 24. The flow of protons during the light reaction of photosynthesis is from thylakoid space to stroma and back to thylakoid space through the ATPase? (a) True (b) False 25. Which of the following...
21) Which process in eukaryotic cells will normally proceed whether O2 is present or absent? A) oxidative phosphorylation B) glycolysis C) Krebs cycle D) electron transport 22) The direct energy source that drives ATP synthesis during respiratory oxidative phosphorylation is A) thermodynamically favorable transfer of phosphate from glycolysis and Krebs cycle intermediate molecules of ADP. B) the thermodynamically favorable flow of electrons from NADH to the mitochondrial electron transport carriers. C) the final transfer of electrons to oxygen. D) the...
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?...
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring compound that binds to protein complex IV of the mitochondrial electron transport chain and prevents transfer of electrons from the protein. Metformin: At the cellular level, chemically synthesized metformin, a drug commonly prescribed for Type 2 diabetes, inhibits mitochondrial respiration by blocking complex I. Dinitrophenol: Dinitrophenol is a metabolic poison that can be sold legally as a pesticide. Although it is lethal to humans,...
que photosynthetic pigment instead of chlorophyll. The leaves of this plant always appear to be green. What colors of light would be least effective for photosynthesis for this plant? A plant has a unique photo yellow, not green. What co A. green B. white C. red D. blue E yellow 25. Which of the following is NOT a product of the light reactions? A. NADPH В. АТР C. oxygen D. carbon dioxide 26. Which of the following are products of...
22. Lipids would produce with the carbohydrate of same weight. energy compared (a) more (b) less c) the same amount 23. Where are the proteins of electron-transport chain located in mitochondria for the cellular respiration? (a) matrix (c) inner membrane (b) outer membrane (d) both membranes 24. The flow of protons during the light reaction of photosynthesis is from thylakoid space to stroma and back to thylakoid space through the ATPase? (a) True (b) False 25. Which of the following...
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