Glycolysis Part 2 Flashcards

1
Q

Glycolysis “_____”

A

“Sweet Breaking”

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2
Q

Stage 1 of Glycolysis

A

Entrapment

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3
Q

Entrapment

A

Glucose being phosphorylated by Hexokinase

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4
Q

What type of binding does Hexokinase use?

A

Induced Fit

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5
Q

G6P to F6P is an example of a

A

reversible isomerization reaction

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6
Q

Entrapment Part 2

A

F6P is phosphorylated to F1,6P

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7
Q

Last Stage of Stage 1

A

Dihydroxyacetone phosphate(DHP) > Triose phosphate isomerase > Glyceraldehyde 3-phosphate (GAP)

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8
Q

TPI causes lethal anemia and neuronal problems why?

A

Red blood cells arent able to generate their own enerdy. rely on glycolysis

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9
Q

The purpose of Stage 1 is to

A

break down glucose 6C to two trioses in the cytoplasm

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10
Q

ATP count after Stage 1

A

2 ATP Used, 0 ATP made

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11
Q

First reaction of Stage 2

A

the formation of 1,3 bisphosphoglycerate (1,3BPG) by GAPDH

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12
Q

1,3 BPG is made exergonic through

A

Thioester Intermediate

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13
Q

1,3- BPG has a high level of free energy of

A

Hydrolysis/Phosphoryl Transfer Potential

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14
Q

Phosphoglycerate Kinase makes

A

2 ATP

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15
Q

Substrate level phosphorylation is so named because

A

the phosphate comes from the substrate and NOT ATP as usually occurs with kinases.

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16
Q

GAP (aldehyde)

A

product of triose phosphate isomerase (TPI)

17
Q

3-PG (3-phosphoglycerate)

A

product of phosphoglycerate kinase

18
Q

Pyruvate Kinase makes

A

2 ATP

19
Q

PEP to Pyruvate Step drives

A

glycolysis

20
Q

After Stage 2 of Glycolysis

A

2 ATP used, 2 Net ATP Made, 2 NADH Made, 2 Pyruvate

21
Q

Glycolysis is thermodynamically…

A

favorable

22
Q

Alcoholic Fermentation

A

microbes metabolize pyruvate to EtOH

23
Q

hexokinase

A

catalyses first step of glycolysis and is allosterically inhibited by its product glucose 6-phosphate

24
Q

phosphoglycerate kinase (PGK)

A

substrate level phosphorylation, up regulated in cancer cells due to hypoxia

25
Q

phosphofructokinase (PFK)

A

catalyzes the most regulated step in glycolysis

26
Q

High Energy Charge

A

HIGH ATP, turn off and on pathway either anabolic or catabolic

27
Q

Low Energy Charge

A

LOW ATP,turn off and on pathways either anabolic or catabolic