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Flashcards in Glycolysis Deck (15):
0

Glucose catabolism reaction

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

1

Glucose -> ???

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

2

Anaerobicly

-no oxygen
-gets its energy from glycolysis only

3

Yield per glucose

-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

4

Oxidation and reduction in glycolysis

-glucose is being oxidized to pyruvate
-nad is being reduced to nadh

5

Pyruvate ---> ??

1. Lactate
2. Ethanol + CO2

** oxidizes nadh back to nad

6

Alcohol fermentation

Pyr -> acetaldehyde -> ethanol
1. Decarboxylation
2. Reduction

7

Cori cycle

Sending lactate to the liver to turn it back into glucose

8

Commitment step of glycolysis

F6p to f16bp by pfk1
-irreversible step

9

PFK1 activators

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

10

PFK1 inhibitors

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

11

Energy investment steps

1. g -> g6p
2. F6p -> f16bp

12

Energy payoff steps

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

13

What step is nadh made

Ga3p -> 13bpg
Nad->nadh (make 2 nadh)

14

Where does glycolysis take place

Cytosol