Homework Answers
The lactate then produced is transported to liver.
b)
- pyruvate to acetyl Co-A and oxaloacetate occur in mitochondria.
- pyruvate to ethanol and lactate occurs in cytoplasm.
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4. Briefly explain with equations, the fate of pyruvate generated in animal cells during glycolysis. b....
In anaerobic metabolism, what is the fate of pyruvate produced by glycolysis a. 2 b. 4...
In anaerobic metabolism, what is the fate of pyruvate produced by glycolysis a. 2 b. 4 c. 6 d. 8 e. none of the above Fructose 1,6-bisphosphate is: a. stimulated by fructose-2,6-bisphosphate b. stimulated by citrate c. stimulated by AMP d. not subject to allosteric control e. none of the above
3. Which of the following pathways operate when cells are growing anaerobically? a. Glycolysis b. Pyruvate...
3. Which of the following pathways operate when cells are growing anaerobically? a. Glycolysis b. Pyruvate Oxidation c. Kreb's Cycle d. Electron Transport Chain e. Two of the above
4. Trace the fate of hydrogens removed from glucose during glycolysis when oxygen is present in...
4. Trace the fate of hydrogens removed from glucose during glycolysis when oxygen is present in muscle cells; compare this to the fate of hydrogens removed from glucose when the amount of available oxygen is insufficient to support aerobic respiration. 5. Why is each of the following essential to chemiosmotic ATP synthesis? (a) electron transport chain (b) proton gradient (c) ATP synthase complex? 6. Sum up how much energy (as ATP) is made available to the cell from a single...
Select reactions that occur during the second stage of glycolysis, called the energy harvest stage and...
Select reactions that occur during the second stage of glycolysis, called the energy harvest stage and consisting of reactions 6 through 10 Check all that apply ATP donates a phosphate to glucose Two molecules of pyruvate are produced. ATP is generated by substrate-level phosphorylation. Chemiosmotic phosphorylation occurs NAD is reduced to NADH Do you know the answer? Think so Unsure No idea I know it 5 7 8 9 DFGH
Subject 504V56 is a research animal (dog), she was diagnosed with Pyruvate kinase Deficiency (PKD). PKD...
Subject 504V56 is a research animal (dog), she was diagnosed with Pyruvate kinase Deficiency (PKD). PKD is a genetic metabolic disease that causes pyruvate kinase to be absent or greatly reduced. Pyruvate kinase is the enzyme in the 10th and final step of glycolysis. This means that pyruvate is not created To ensure that she can continue producing ATP, her diet should be fortified with which of the following macromolecule types? 1. Carbohydrates like glucose 2. Lipids like lard and...
113) Adenosine triphosphate is generated during a) glycolysis b) the krebs cycle c) the electron transport chain re...
113) Adenosine triphosphate is generated during a) glycolysis b) the krebs cycle c) the electron transport chain reaction d) all of the above c) band only 114) During which of the following processes is the greatest amount of ATP produced: Osmosis peptidoglycan synthesis glycolysis electron transport chain reactions lipidolysis 115) The site of the bacterial cell where ATP is produced is the cell wall cell membrane mitochondria nuclear region bande 116) ATP syhtnase: c) is the enzyme the breaks down...
2. Which of the cells shown above is an autotroph and which is a heterotroph? How...
2. Which of the cells shown above is an autotroph and which is a heterotroph? How can you tell? What organelle does an autotroph need? What process occurs in autotrophs that does not occur in heterotrophs? 3. Identify the organelles labeled A-E here and give one function of each organelle. Is this cell a prokaryotic or eukaryotic cell - give one reason for your answer. 4. Which do you think evolved first, a prokaryotic or a eukaryotic cell? Why do...
48. In all cells, glucose catabolism begins with a glycolysis. b. fermentation c. pyruvate oxidation. d....
48. In all cells, glucose catabolism begins with a glycolysis. b. fermentation c. pyruvate oxidation. d. the citric acid cycle. e. chemiosmosis Questions 49-51 apply to the diagram below 49. The diagram above most likely represent metabolic processes occurring in the a Endoplasmic reticulum b. Mitochondria c. Chloroplast d Golgi apparatus e Lysosome 50. Under aerobic conditions "X" is most likely the molecule: a. Hydrogen peroxide b. Superoxide dismutase c. Oxygen d. Carbon dioxide c. Nitrate 51. The structure indicated...
Question 1 A-C Question 2 Question 1: Glycolysis represents only very limited oxidation of glucose into...
Question 1 A-C
Question 2
Question 1: Glycolysis represents only very limited oxidation of glucose into pyruvate, and may be followed up by fermentation involving reduction of pyruvate, not further oxidation. Part A. (4 points) Explain how one molecule of NAD+ plays important roles in both parts of the above paired reactions, specifically mentioning how it is involved in both oxidation and reduction Part B. (4 points) The enzymes involved in the reduction of pyruvate to lactate or ethanol have...
3 20 The conversion pyruvate to either ethanol or lactate occurs A. when there is an abundance of pyruvate but a deficiency of onygen B. when there is an abundance of BOTH pyruvate and oxygen C....
3 20 The conversion pyruvate to either ethanol or lactate occurs A. when there is an abundance of pyruvate but a deficiency of onygen B. when there is an abundance of BOTH pyruvate and oxygen C. when there is a deficiency of BOTH pyruvate and oxygen D. for the regeneration of NADH so that hydrolysis of ATP can continue to fuel the glycolysis pathway Explain how gluconeogenesis differs from gtycolysis 21 Gluconeogenesis is simply the reverse of all 10 steps...
3. Which of the following pathways operate when cells are growing anaerobically? a. Glycolysis b. Pyruvate Oxidation c. Kreb's Cycle d. Electron Transport Chain e. Two of the above
4. Trace the fate of hydrogens removed from glucose during glycolysis when oxygen is present in muscle cells; compare this to the fate of hydrogens removed from glucose when the amount of available oxygen is insufficient to support aerobic respiration. 5. Why is each of the following essential to chemiosmotic ATP synthesis? (a) electron transport chain (b) proton gradient (c) ATP synthase complex? 6. Sum up how much energy (as ATP) is made available to the cell from a single...
Select reactions that occur during the second stage of glycolysis, called the energy harvest stage and consisting of reactions 6 through 10 Check all that apply ATP donates a phosphate to glucose Two molecules of pyruvate are produced. ATP is generated by substrate-level phosphorylation. Chemiosmotic phosphorylation occurs NAD is reduced to NADH Do you know the answer? Think so Unsure No idea I know it 5 7 8 9 DFGH
Subject 504V56 is a research animal (dog), she was diagnosed with Pyruvate kinase Deficiency (PKD). PKD is a genetic metabolic disease that causes pyruvate kinase to be absent or greatly reduced. Pyruvate kinase is the enzyme in the 10th and final step of glycolysis. This means that pyruvate is not created To ensure that she can continue producing ATP, her diet should be fortified with which of the following macromolecule types? 1. Carbohydrates like glucose 2. Lipids like lard and...
113) Adenosine triphosphate is generated during a) glycolysis b) the krebs cycle c) the electron transport chain reaction d) all of the above c) band only 114) During which of the following processes is the greatest amount of ATP produced: Osmosis peptidoglycan synthesis glycolysis electron transport chain reactions lipidolysis 115) The site of the bacterial cell where ATP is produced is the cell wall cell membrane mitochondria nuclear region bande 116) ATP syhtnase: c) is the enzyme the breaks down...
2. Which of the cells shown above is an autotroph and which is a heterotroph? How can you tell? What organelle does an autotroph need? What process occurs in autotrophs that does not occur in heterotrophs? 3. Identify the organelles labeled A-E here and give one function of each organelle. Is this cell a prokaryotic or eukaryotic cell - give one reason for your answer. 4. Which do you think evolved first, a prokaryotic or a eukaryotic cell? Why do...
48. In all cells, glucose catabolism begins with a glycolysis. b. fermentation c. pyruvate oxidation. d. the citric acid cycle. e. chemiosmosis Questions 49-51 apply to the diagram below 49. The diagram above most likely represent metabolic processes occurring in the a Endoplasmic reticulum b. Mitochondria c. Chloroplast d Golgi apparatus e Lysosome 50. Under aerobic conditions "X" is most likely the molecule: a. Hydrogen peroxide b. Superoxide dismutase c. Oxygen d. Carbon dioxide c. Nitrate 51. The structure indicated...
Question 1 A-C
Question 2
Question 1: Glycolysis represents only very limited oxidation of glucose into pyruvate, and may be followed up by fermentation involving reduction of pyruvate, not further oxidation. Part A. (4 points) Explain how one molecule of NAD+ plays important roles in both parts of the above paired reactions, specifically mentioning how it is involved in both oxidation and reduction Part B. (4 points) The enzymes involved in the reduction of pyruvate to lactate or ethanol have...
3 20 The conversion pyruvate to either ethanol or lactate occurs A. when there is an abundance of pyruvate but a deficiency of onygen B. when there is an abundance of BOTH pyruvate and oxygen C. when there is a deficiency of BOTH pyruvate and oxygen D. for the regeneration of NADH so that hydrolysis of ATP can continue to fuel the glycolysis pathway Explain how gluconeogenesis differs from gtycolysis 21 Gluconeogenesis is simply the reverse of all 10 steps...
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