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26 Jun 2019

Briefly explain how AMPK (AMP Kinase) targets key metabolic enzymes, acting as a master switch for many metabolic processes. How is AMPK activated?

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Patrina Schowalter
Patrina SchowalterLv2
29 Jun 2019

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What are the three stages of glycolysis? Describe how glucose is activated and how ATP is made from the catalysis of glucose to pyruvate. Be specific as possible. What is substrate phosphorylation? How does it occur? How many ATP are used up? How many produced? Correct answers will include the activity of key enzymes (aldolase, Glyceraldehyde 3-phosphate dehydrogenase, Phosphoglycerokinase, and Pyruvate kinase)

What are the three stages of glycolysis? Describe how glucose is activated and how ATP is made from the catalysis of glucose to pyruvate. Be specific as possible. What is substrate phosphorylation? How does it occur? How many ATP are used up? How many produced?

PLEASE include the activity of key enzymes in the response above (aldolase, Glyceraldehyde 3-phosphate dehydrogenase, Phosphoglycerokinase, and Pyruvate kinase)

1. What is meant by catabolic and anabolic reactions? Give an example of each.

2. Is the DG for an exergonic reaction more than or less than zero? What about an endergonic reaction? In which type of reaction do the products have more energy than the reactants? Why?

3. How do metabolic pathways keep from reaching equilibrium?

4. Describe the components of ATP. What is the purpose of ATP in the cell? How is it recycled?

5. What is meant by the EA of a reaction? How do enzymes affect the EA and the DG of a reaction?

6. Describe the cycle of an enzyme as it catalyzes a reaction.

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9. Describe how an allosteric enzyme works.

10. Why is feedback inhibition important in metabolic pathways?

11. Define Energy. What are the different types of Energy?

12. What are the laws of Thermodynamics?

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