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What are the 3 steps of glycolysis that have the largest exergonic reactions? W…

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Wize University Biology Textbook > Energy & Metabolism

Coupled Reactions

4 Activities

Wize University Biology Textbook > Cellular Respiration

Glycolysis [detailed]

6 Activities

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What are the 3 steps of glycolysis that have the largest exergonic reactions? What enzymes are they regulated by?
More Coupled Reactions Questions:
C6H12O6 + 6O2 --> 6CO2 +6H2O is the balanced chemical equation for respiration. Is the process exergonic or endergonic?
Coupled Reactions
What is the gibbs free energy of reaction for a coupled reaction where one process has a standard free energy change of +43 kJ/mol and the other has a standard free energy change of -16kJ/mol?
Is this coupled reaction spontaneous or non-spontaneous?
Free Energy
How can unfavourable reactions occur in a cell?
Which of the following have a negative ΔG?
Wize Exam Practice Questions:
Which of the following enzymes catalyzes a reversible reaction?
Similar to 2018 exam Q4
Provide 2 examples of coupled reactions found in cellular respiration, then give a detailed explanation of each. Use free energy values were necessary (6pts)
Give a real-life example of an ATP coupled reaction. Write out the equations.
If the entropy of a system is large, the enthalpy is negative and the temperature of the system is high, which of the following would be correct? All other conditions are constant and controlled. Select all that apply.
Gibbs Free Energy
Which of the following is true about an exergonically coupled reaction? Select all that apply.
The net ΔG is negative
There are more than 2 reactions happening at the same time
Coupled Reactions
What is the gibbs free energy of reaction for a coupled reaction where one process has a standard free energy change of +43 kJ/mol and the other has a standard free energy change of -16kJ/mol?
Is this coupled reaction spontaneous or non-spontaneous?
What is the net free energy change of two reactions and indicate if it is favourable or unfavourabe. One with a free energy change of -26 kJ/mol and the other with +15 kJ/mol.
Practice: Polymerization
Polymerization reactions are endergonic, why?
Free Energy
How can unfavourable reactions occur in a cell?
Practice: What is Gibbs Free Energy?
What does Gibbs free energy determine?
Using Gibb's Free Energy, an example
A biochemical pathway produces metabolite E. This pathway consists of A, B, C and D intermediates that require enzymes 1, 2, 3 and 4 to catalyze each step of the reaction.
a. Given the following information about each reaction, state which reactions are exergonic or endergonic. Where possible, state which reactions are exothermic or endothermic.
i. A → B, ΔG = +3
Given the below steps to a biological reaction, what can you infer about each step? What can you predict about the reaction as a whole?
(i.e. what is ΔGTotal\Delta G_{Total} )
C6H12O6 + 6O2 --> 6CO2 +6H2O is the balanced chemical equation for respiration. Is the process exergonic or endergonic?
Given the figure, which of the following statements is correct?
Why are enzymes vital for life?
Given the following information, what is the value of the change in free energy?
T = 25oC
Entropy of the reactants = 3
Given the figure below, which of the following is true?
Which of the following statements best describes the enthalpy change of a reaction?
Which of the following enzymes catalyzes a reversible reaction?
A reaction where the products have less energy than the reactants is considered…
A reaction with a positive ΔG is considered...
Why is ATP hydrolysis exergonic?
How can energy coupling with ATP be described?
Which of the following is not a reason ATP hydrolysis is exergonic?
Which of the following describes a reaction that occurs on its own and releases energy?
Which of the following have a negative ΔG?
How does energy coupling work?
More Glycolysis [detailed] Questions:
The bong mutant of a yeast species Saccharomyces causes them to be restricted to generating ATP through glycolysis alone. Which of the follow statements could be a possible role of this mutation?
ATP produced during glycolysis is a result of:
Glycolysis
Which of the following processes occurs in the cytosol of eukaryotes?
What is the carbohydrate product of glycolysis in the cytosol?
Practice: Last Step of Glycolysis
Which enzyme catalyzes the last step of glycolysis?
Using what you learned over all the lessons on metabolism, match the overall reaction with the process.
How many molecules of lactate can be produced form one glucose molecule?
Electron carriers (Similar to 2018 question 38)
Which processes provide NADH to be used in the electron transport chain?
High transfer potential: Similar to 2014 Question 8
Which of the following reactions has the most negative free energy change?
Glycolysis
At which intermediate within glycolysis is C1 of glucose and C6 of glucose identical?
Femermentation (Similar to 2018 Question 28)
How many molecules of ethanol would be produced from the fermentation of the disaccharide sucrose?
Glycolysis
Which statement is true about the reactions in Glycolysis?
Glycolysis
Which enzyme is responsible for generating NADH in glycolysis and how many NADH are produced per one molecule of glucose?
Which of the following statements is false?
Practice: Product of Glycolysis
What is the carbohydrate product of glycolysis in the cytosol?
ATP Production
Which processes in central metabolism are able to generate ATP? Select all that apply.
MCAT Practice Question
The bong mutant of a yeast species Saccharomyces causes them to be restricted to generating ATP through glycolysis alone. Which of the follow statements could be a possible role of this mutation?
Practice: Processes in the Cytosol
Which of the following processes occurs in the cytosol of eukrayotes?
Practice
Which of the following is a metabolic pathway shared by both cellular respiration and fermentation?
MCAT Practice Question
The bong mutant of a yeast species Saccharomyces causes them to be restricted to generating ATP through glycolysis alone. Which of the follow statements could be a possible role of this mutation?
PFK regulation
What effect does Fructose-2,6-bisphosphate have on glycolysis?
During which stage of glycolysis does the main substrate lose free energy?
Which of the following statements is true about glycolysis?
Which fo the following statements is false?
High transfer potential: Similar to 2014 Question 8
Which of the following reactions has the most negative free energy change?
ATP Production
Which processes in central metabolism are able to generate ATP? Select all that apply.
Glycolysis
Which enzyme is responsible for generating NADH in glycolysis and how many NADH are produced per one molecule of glucose?
How many ATP molecules are produced per glucose molecule under anaerobic conditions?
What is the overall yield of glycolysis and the key steps involved?
During glycolysis a 6 carbon molecule of glucose is broken down into two 3 carbons molecules of pyruvate. For EACH cycle of the citric acid cycle how many carbons from glucose are used?
During glycolysis the carbons from glucose are used to produce
The metabolic pathway shared by both cellular respiration and fermentation is
Electron carriers (Similar to 2018 question 38)
Which processes provide NADH to be used in the electron transport chain?
Femermentation (Similar to 2018 Question 28)
How many molecules of ethanol would be produced from the fermentation of the disaccharide sucrose?
Glycolysis
At which intermediate within glycolysis is C1 of glucose and C6 of glucose identical?
Glycolysis
Which statement is true about the reactions in Glycolysis?
Explain why anaerobic fermentation occurs and how it is necessary for ATP production in the absence of oxygen.
How many molecules of lactate can be produced form one glucose molecule?
Using what you learned over all the lessons on metabolism, match the overall reaction with the process.
PFK regulation
Which enzyme is responsible for creating Fructose-2,6-bisphosphate, and what affect does it have on glycolysis?
Glycolysis electron carriers
This/These electron carriers are produced during glycolysis (select all that apply)
substrate level phosphorylation
In which of the following process(es) do we see substrate level phosphorylation?
ATP produced during glycolysis is a result of
What would not be found along the membrane marked by A
Which of the following processes occurs in the cytosol of eukrayotes?
A human cell is no longer exposed to oxygen. Which of the following will take place?
Which of the following are shared between electron transport of cellular respiration and photosynthesis?
You want to compare distantly related organisms from eukaryotes to bacteria. Which of the following would you use?
You want to build a phylogeny that includes humans, E. coli, and a plant species known as Arabidopsis. Which of the following proteins coding genes would you use to help you form this phylogeny?
The bong mutant of a yeast species Saccharomyces causes them to be restricted to generating ATP through glycolysis alone. Which of the follow statements could be a possible role of this mutation?
Practice: PFK regulation
What effect does Fructose-2,6-bisphosphate have on glycolysis?
Practice: Product of Glycolysis
What is the carbohydrate product of glycolysis in the cytosol?
Glycolysis
Which of the following processes occurs in the cytosol of eukrayotes?
Practice: Last Step of Glycolysis
Which enzyme catalyzes the last step of glycolysis?
Practice: Overall Yield of Glycolysis
What is the overall yield of glycolysis and the key steps involved?
Which enzyme catalyzes the last step of glycolysis?
What is the carbohydrate product of glycolysis in the cytosol?
How does fermentation allow glycolysis to continue in the absence of oxygen?
How is NAD+ regenerated for glycolysis when no oxygen is available in mammals?