Glycolysis

Question 0

Glucose -> ???

Answer 0

Glu(6c) -> 2pyr(3c)

Question 1

Glucose catabolism reaction

Answer 1

• glycolysis
• C6H12O6 + 6O2 -> 6CO2 + 6H2O
• oxidizes glucose

Question 2

Anaerobicly

Answer 2

• no oxygen

- gets its energy from glycolysis only

Question 3

Yield per glucose

Answer 3

• need 2ATP and make 4ATP YIELDS 2ATP
• uses 2NAD and converts it to 2NADH. YIELDS 2NADH
  - must regenerate the NAD to continue
• YIELDS 2 pyruvate

Question 4

Oxidation and reduction in glycolysis

Answer 4

• glucose is being oxidized to pyruvate

- nad is being reduced to nadh

Question 5

Pyruvate —> ??

Answer 5

1. Lactate
2. Ethanol + CO2

** oxidizes nadh back to nad

Question 6

Alcohol fermentation

Answer 6

Pyr -> acetaldehyde -> ethanol

1. Decarboxylation
2. Reduction

Question 7

Cori cycle

Answer 7

Sending lactate to the liver to turn it back into glucose

Question 8

Commitment step of glycolysis

Answer 8

F6p to f16bp by pfk1

-irreversible step

Question 9

PFK1 activators

Answer 9

1. Amp- means you dont have alot of ATP
2. F6P- positive feedback
3. insulin- released if you just ate alot of glucose. So chew up the glucose and make atp

Question 10

PFK1 inhibitors

Answer 10

1. ATP- negative feedback already have alot of energy
2. F16BP- negative feedback
3. Citrate- part of CAC so negative feedback
4. Glucagon- released when you dont have alot of glucose in bloodstream. Means you havent eaten in a while so save the glucose for the brain

Question 11

Energy investment steps

Answer 11

1. g -> g6p

2. F6p -> f16bp

Question 12

Energy payoff steps

Answer 12

1. 13bpg -> 3pg (makes 2 atp)

2. Pep -> pyr (makes 2 atp)

Question 13

What step is nadh made

Answer 13

Ga3p -> 13bpg

Nad->nadh (make 2 nadh)

Question 14

Where does glycolysis take place

Answer 14

Cytosol