1. List the 3 mechanisms cells use to generate ATP. Which mechanism is used in g

Question

1. List the 3 mechanisms cells use to generate ATP. Which mechanism is used in glycolysis?

2. What are the 3 major steps of cellular respiration?

3. What are the 2 main stages of glycolysis? How many total reactions?

4. Know the overall reaction of glycolysis, including numbers of ATP and NADH produced, and the final oxidation product.

5. How does glucose enter the cell? What is a difference between eukaryotic and prokaryotic cells in terms of glucose transport into the cell?

6. Outline the steps of glycolysis, including glycolytic intermediates, enzymes, and cofactors that participate. Which reactions in glycolysis are irreversible and under regulatory control?

6. What reaction does hexokinase catalyze? What are the 2 main purposes of phosphorylation of glucose?

Explanation / Answer

Ans 1 :

ATP is the energy currency of the cell , that drives all the biochemical reactions of the body.

The three mechanisms that are used by the cell to generate ATP are :

1) Oxidative phosphorylation

2) Substrate level phosphorylation

3) Photophosphorylation

2 molecules of ATP are produced in glycolysis by oxidation of glucose by substrate level phosphorylation.

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