ATP

Question 1

what is generated from one molecule of glucose in glycolysis?

Answer 1

• 2 ATP
• 2 NADH
• 2 Pyruvate

Question 2

what are the regulators for glycolysis? what steps do they regulate?

Answer 2

AMP

• allosteric activator of PFK-1
• therefore low ATP increases glycolysis and high decreases gylcolysis

fructose-2,6-bisphosphate

• allosterically activates PFK-1
• made due to high insulin

H+ ions
-inhibit PFK-1 decreasing glycolysis

Question 3

why is the first step of glycolysis important?

Answer 3

• action of hexosekinase on glucose is irreversible

- commits glucose to metabolism

Question 4

what are the substrates for the krebs cycle?

Answer 4

• Citrate
• Isocitrate
• alpha ketoglutarate
• succinyl CoA
• succinate
• Fumarate
• Malate
• Oxaloacetate

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Question 5

what is produced from one molecule of pyruvate in the krebs cycle?

Answer 5

• 3 NADH
• 1 ATP (from GTP)
• 1 FADH2
• 2 CO2