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4. Can the reactions of glycolysis simply be run in reverse to synthesize glucose? Why or...
What process uses glucose to synthesize a larger molecule? Question 12 What process uses glucose to...
What process uses glucose to synthesize a larger
molecule?
Question 12 What process uses glucose to synthesize a larger molecule? 1 Krebs cycle (2) gluconeogenesis (3) glycogenesis 4 electron transport chain 6 glycolysis
Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glyco...
Glycolysis is the process by
which energy is harvested from glucose by living things. Several of
the reactions of glycolysis are thermodynamically unfavorable
(nonspontaneous), but proceed when they are coupled with other
reactions.
Which of these reactions is (are) unfavorable? Select all that apply. Which of these reactions can be coupled so that overall reaction is favorable? Select all that apply. What is the net change in free energy if one selection from part (b) is coupled so that the...
Recall the first three reactions in glycolysis: You’ve already learned that, in addition to proceeding through...
Recall the first three reactions in glycolysis: You’ve already learned that, in addition to proceeding through glycolysis, glucose 6-phosphate (G6P) can be used to synthesize a carbohydrate storage molecule called glycogen. Glucose 6-phosphate is also a precursor for the synthesis of nucleotides that are used to build DNA and RNA. The first step of this pathway is catalyzed by an enzyme called glucose 6-phosphate dehydrogenase. Assume that reactions in this pathway with double arrows are reversible under cellular conditions, while...
1. If one glucose molecule enters into glycolysis and proceeds through the PDC and through the...
1. If one glucose molecule enters into glycolysis and proceeds through the PDC and through the citric acid cycle, how many NADH molecules are generated in these reactions? 2. If one glucose molecule enters into glycolysis and proceeds through the PDC and through the citric acid cycle, how many FADH2 molecules (that can be used directly by the ETC) are generated in these reactions? 3. If one glucose molecule enters into glycolysis and proceeds through the PDC and through the...
1. If one glucose molecule enters into glycolysis and proceeds through the PDC and through the...
1. If one glucose molecule enters into glycolysis and proceeds through the PDC and through the citric acid cycle, how many NADH molecules are generated in these reactions? 2. If one glucose molecule enters into glycolysis and proceeds through the PDC and through the citric acid cycle, how many FADH2 molecules (that can be used directly by the ETC) are generated in these reactions? 3. If one glucose molecule enters into glycolysis and proceeds through the PDC and through the...
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...
8,9,10 please 6. Consider the glycolysis of a single glucose molecule. a. How many ATP molecules...
8,9,10 please
6. Consider the glycolysis of a single glucose molecule. a. How many ATP molecules are used up during the first 3 reactions? b. How many ATP molecules are produced by the last 4 reactions? c. What is the net ATP balance for glycolysis? 7. Is 02 a reactant in any of the reactions of glycolysis? 8. During glycolysis, there is an oxidation reaction that is necessary in order for any ATP to be produced. Name the oxidizing agent...
Question 9 12 pts In glycolysis, glucose is converted to [Select] in 10 enzymatic Toalet reactions...
Question 9 12 pts In glycolysis, glucose is converted to [Select] in 10 enzymatic Toalet reactions resulting in the net synthesis of [Select] moles of ATP per mole of glucose. During fermentation, the end products of glucose metabolism are [Select] and the electron acceptors are [Select] In aerobic metabolism, the terminal acceptor of electrons from glucose Select] Most of the energy arising from aerobic respiration is generated in the [Select] phase.
2. The first step in glycolysis is catalyzed by the enzyme herokinase: glucose + ATP glucose-6-P...
2. The first step in glycolysis is catalyzed by the enzyme herokinase: glucose + ATP glucose-6-P + ADP This reaction can be thought of as two coupled reactions (P is phosphate): (1) glucose + P + glucose-6-P (2) ATP + ADP + P For the overall reaction, AG" = -16.7 kJ/mol. For the hydrolysis of ATP (equation 2), AG = -310 kJ/mol. All reactions are performed at 37°C. (a) What is AGº for reaction 1? Iglucose - 6-11 if AG...
3. Summary of glycolysis Aa Aa E The removal of high-energy electrons from glucose begins with...
3. Summary of glycolysis Aa Aa E The removal of high-energy electrons from glucose begins with glycolysis. Glycolysis involves 10 reactions in which bonds are broken or rearranged. The key events of these 10 reactions are summarized in the diagram. Describe them by completing the blanks in the following sentences. Glucose Key Event 1: Chemical energy is invested. Key Event 2: High-energy electrons and protons are released from the bonds of organic molecules and transferred to 2 ADP + 2...
What process uses glucose to synthesize a larger
molecule?
Question 12 What process uses glucose to synthesize a larger molecule? 1 Krebs cycle (2) gluconeogenesis (3) glycogenesis 4 electron transport chain 6 glycolysis
Glycolysis is the process by
which energy is harvested from glucose by living things. Several of
the reactions of glycolysis are thermodynamically unfavorable
(nonspontaneous), but proceed when they are coupled with other
reactions.
Which of these reactions is (are) unfavorable? Select all that apply. Which of these reactions can be coupled so that overall reaction is favorable? Select all that apply. What is the net change in free energy if one selection from part (b) is coupled so that the...
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...
8,9,10 please
6. Consider the glycolysis of a single glucose molecule. a. How many ATP molecules are used up during the first 3 reactions? b. How many ATP molecules are produced by the last 4 reactions? c. What is the net ATP balance for glycolysis? 7. Is 02 a reactant in any of the reactions of glycolysis? 8. During glycolysis, there is an oxidation reaction that is necessary in order for any ATP to be produced. Name the oxidizing agent...
Question 9 12 pts In glycolysis, glucose is converted to [Select] in 10 enzymatic Toalet reactions resulting in the net synthesis of [Select] moles of ATP per mole of glucose. During fermentation, the end products of glucose metabolism are [Select] and the electron acceptors are [Select] In aerobic metabolism, the terminal acceptor of electrons from glucose Select] Most of the energy arising from aerobic respiration is generated in the [Select] phase.
2. The first step in glycolysis is catalyzed by the enzyme herokinase: glucose + ATP glucose-6-P + ADP This reaction can be thought of as two coupled reactions (P is phosphate): (1) glucose + P + glucose-6-P (2) ATP + ADP + P For the overall reaction, AG" = -16.7 kJ/mol. For the hydrolysis of ATP (equation 2), AG = -310 kJ/mol. All reactions are performed at 37°C. (a) What is AGº for reaction 1? Iglucose - 6-11 if AG...
3. Summary of glycolysis Aa Aa E The removal of high-energy electrons from glucose begins with glycolysis. Glycolysis involves 10 reactions in which bonds are broken or rearranged. The key events of these 10 reactions are summarized in the diagram. Describe them by completing the blanks in the following sentences. Glucose Key Event 1: Chemical energy is invested. Key Event 2: High-energy electrons and protons are released from the bonds of organic molecules and transferred to 2 ADP + 2...
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