Suppose a yeast cell uses 1 mole of glucose for energy production. No oxygen is available....
Suppose a yeast cell uses 1 mole of glucose for energy production. No oxygen is available. What will be the net yield of ATP in moles?
Select one:
a. 0
b. 1
c. 2
d. 4
e. 36
Homework Answers
c. 2
2 moles of ATP will be formed in the absence of oxygen i.e anaerobic respiration which is also called fermentation in this case. The overall chemical formula for alcoholic fermentation is C6H12O6 → 2 C2H5OH + 2 CO2 +2 ATP.
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Suppose a yeast cell uses 1 mole of glucose for energy
production. No oxygen is available....
In a calorimeter, the combustion of 1 mole of glucose produces 690 kcal. 1. What percentage...
In a calorimeter, the combustion of 1 mole of glucose produces 690 kcal. 1. What percentage of ATP energy is produced when 3 moles of glucose react in glycolysis? (7.3 kcal/mole ATP) 2. What percentage of ATP energy is produced when 3 moles of glucose are oxidized into acetyl CoA? (7.3 kcal/mole ATP) 3. What percentage of ATP energy is produced when 3 moles of glucose react in the citric acid cycle? (7.3 kcal/mole ATP) 4. What percentage of ATP...
A suspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded...
A suspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. Adding an inhibitor of alcohol dehydrogenase to the yeast cell suspension results in rapid cell death. Why? a.) Without alcohol dehydrogenase, the acetaldehyde concentration increases to levels that are toxic to the yeast cells. b.) NADH generated during glycolysis cannot be recycled back to NAD+, thus anaerobic ATP production through glycolysis cannot be maintained. c.) Pyruvate is no longer...
Without oxygen, a cell: 1) will not break down glucose for energy O2) cannot use ATP...
Without oxygen, a cell: 1) will not break down glucose for energy O2) cannot use ATP 3) makes lactic acid O4) makes more ATP
Which of the following is NOT expected when a eukaryotic cell is deprived from Oxygen? Select...
Which of the following is NOT expected when a eukaryotic cell is deprived from Oxygen? Select one: a. All listed events are expected in a eukaryotic cell deprived of oxygen b. The cell continues to oxidize glucose to pyruvate through glycolysis c. The formation of CO2 from cell respiration stops d. Reduction of the production of ATP by substrate level phosphorylation in the mitochondria e. The cell reduces pyruvate (fermentation) to allow the ETC to continue working
Which of the following is NOT expected when a eukaryotic cell is deprived from Oxygen? Select...
Which of the following is NOT expected when a eukaryotic cell is deprived from Oxygen? Select one: a. The formation of CO2 from cell respiration stops b. The cell continues to oxidize glucose to pyruvate through glycolysis c. All listed events are expected in a eukaryotic cell deprived of oxygen d. The cell reduces pyruvate (fermentation) to allow the ETC to continue working e. Reduction of the production of ATP by substrate level phosphorylation in the mitochondria
i need help with the "if all protons could be uses for atp production" questions please!!!...
i need help with the "if all protons could be uses for atp
production" questions please!!!
5. (8 points) Consider the oxidation of a mole of NADH: 202 +2e + 2H+ - HO EⓇ = 0.83 V NAD + 2e + H+ - NADH E = -0.32 V What is the AG for the oxidation of a mole of NADH by oxygen? How many moles of protons are pumped as a result of the oxidation of a mole of NADH?...
gets reduced 20. glucose + ATP > glucose-6 phosphate +ADP In the above reaction, - A....
gets reduced 20. glucose + ATP > glucose-6 phosphate +ADP In the above reaction, - A. ADPIATP B. ATP/glucose C. glucose/glucose-6 phosphate D. glucose6-phosphate/glucose E. glucose/ATP 21. Which of the following is a net product of glycolysis? A. ATP B. NAD+ C. pyruvate D. CO2 E. A&C 22. Substrate-level phosphorylation occurs in the process of A. Oxidative phosphorylation B. electron transport chain C. glycolysis D. ATP-synthase function E. C&D 23. What should your hypothesis be for "Do yeast produce ethanol...
Trees are sometimes called the “lungs” of the planet. The oxygen they release comes from Select...
Trees are sometimes called the “lungs” of the planet. The oxygen they release comes from Select one: a. Photosystem 2 b. The Krebs cycle c. The Calvin cycle d. Photosystem 1 e. Pyruvate oxidation -- Which of the following best describes the process of fermentation? Select one: a. It allows the production of ATP in oxygen-rich environments b. It oxidizes NADH to NAD+ c. It leads to the production of lactic acid in yeast cells d. It allows glycolysis to...
* GWhe + Question 4 When glucose and oxygen become carbon dioxide plus water (cell resp...
* GWhe + Question 4 When glucose and oxygen become carbon dioxide plus water (cell resp reaction) which of the following is true: The reaction is.. positive delta G and glucose is oxidized negative delta G and glucose is oxidized positive delta Gandslucose is reduced negative delta Gandducose is reduced Question 5 If an enzyme facilitates an endergonic reaction, which of these is the mo probable to be true? GW obec + If an enzyme facilitates an endergonic reaction, which...
Like humans, yeast (Saccharomyces cerevisiae) can store sugar in the form of glycogen. Thus when glucose...
Like humans, yeast (Saccharomyces cerevisiae) can store sugar in the form of glycogen. Thus when glucose is in short supply, glycogen can be broken down and its subunits can enter glycolysis. Use the following picture of a small glycogen molecule to assist when answering this question. Before baking bread it is often customary to pre-soak the yeast in water. In this water environment there is no simple sugar nor complex starches for the yeast to use as an energy source...
Without oxygen, a cell: 1) will not break down glucose for energy O2) cannot use ATP 3) makes lactic acid O4) makes more ATP
Which of the following is NOT expected when a eukaryotic cell is deprived from Oxygen? Select one: a. All listed events are expected in a eukaryotic cell deprived of oxygen b. The cell continues to oxidize glucose to pyruvate through glycolysis c. The formation of CO2 from cell respiration stops d. Reduction of the production of ATP by substrate level phosphorylation in the mitochondria e. The cell reduces pyruvate (fermentation) to allow the ETC to continue working
Which of the following is NOT expected when a eukaryotic cell is deprived from Oxygen? Select one: a. The formation of CO2 from cell respiration stops b. The cell continues to oxidize glucose to pyruvate through glycolysis c. All listed events are expected in a eukaryotic cell deprived of oxygen d. The cell reduces pyruvate (fermentation) to allow the ETC to continue working e. Reduction of the production of ATP by substrate level phosphorylation in the mitochondria
i need help with the "if all protons could be uses for atp
production" questions please!!!
5. (8 points) Consider the oxidation of a mole of NADH: 202 +2e + 2H+ - HO EⓇ = 0.83 V NAD + 2e + H+ - NADH E = -0.32 V What is the AG for the oxidation of a mole of NADH by oxygen? How many moles of protons are pumped as a result of the oxidation of a mole of NADH?...
gets reduced 20. glucose + ATP > glucose-6 phosphate +ADP In the above reaction, - A. ADPIATP B. ATP/glucose C. glucose/glucose-6 phosphate D. glucose6-phosphate/glucose E. glucose/ATP 21. Which of the following is a net product of glycolysis? A. ATP B. NAD+ C. pyruvate D. CO2 E. A&C 22. Substrate-level phosphorylation occurs in the process of A. Oxidative phosphorylation B. electron transport chain C. glycolysis D. ATP-synthase function E. C&D 23. What should your hypothesis be for "Do yeast produce ethanol...
* GWhe + Question 4 When glucose and oxygen become carbon dioxide plus water (cell resp reaction) which of the following is true: The reaction is.. positive delta G and glucose is oxidized negative delta G and glucose is oxidized positive delta Gandslucose is reduced negative delta Gandducose is reduced Question 5 If an enzyme facilitates an endergonic reaction, which of these is the mo probable to be true? GW obec + If an enzyme facilitates an endergonic reaction, which...
Like humans, yeast (Saccharomyces cerevisiae) can store sugar in the form of glycogen. Thus when glucose is in short supply, glycogen can be broken down and its subunits can enter glycolysis. Use the following picture of a small glycogen molecule to assist when answering this question. Before baking bread it is often customary to pre-soak the yeast in water. In this water environment there is no simple sugar nor complex starches for the yeast to use as an energy source...
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