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Biochem > Pathways > Flashcards

Pathways Flashcards

1
Q

What is the first step of glycolysis

A

Glucose becomes Glucose 6 phosphate

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2
Q

what enzyme catalyzes the first step of glycolysis ?

A

hexokinase

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3
Q

What happens to ATP during first step of glycolysis

A

ATP to ADP

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4
Q

What is the second step of glycolysis ?

A

Glucose 6 phosphate convers to fructose 6 phosphate

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5
Q

What enzyme is responsible for the 2nd step of glycolysis ?

A

phophohexyl isomerase

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6
Q

What is the 3rd step of glycolysis

A

fructose 6-phosphate to
becomes fructose 1,6-bisphosphate

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7
Q

What enzyme is responsible for the 3rd step of glycolysis ?

A

Phosphfrutokinase PFK1

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8
Q

What is unique about the 3rd step of glycolisis ?

A

irreversible

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9
Q

What is the fourth step of glycolysis

A

Fructose 1,6-bisphosphate becomes glyceraldehyde 3-phosphate and dihydroxyacetone phosphate

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10
Q

What is unique about step 4 of glycosis

A

final prepatory phase of glycolysis

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11
Q

What is step 5 of glycolysis ?

A

glyceraldehyde 3-phosphate is oxidized and becomes 1,3-bisphosphoglycerate

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12
Q

What enzyme is responsible for step 5 of glycolysis ?

A

Glyceraldehyde 3-phosphate dehydrogenase

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13
Q

What is the firt step of gluconeogenesis

A

pyruvate is converted to oxaloacetate

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14
Q

What enzyme is responsible for the 1st stewp of gluconeogenesis ?

A

pyrubate carboxlase

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15
Q

Which 2 organs are resonsible for gluconeogenesis

A

liver and kidneys

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16
Q

What is the first step of the oxidative pentose phosphate pathway

A

Glucose-6-phosphate is oxidized to form lactone.

17
Q

What is step 6 of glycolysis ?

A

1,3 bisphosphpylglycerate becomes 3 phospylglycerate

18
Q

What enzyme is responsible for step 6 of glycolysis

A

phophyglycerate kinease

19
Q

What is step 7 of glycolysis

A

3 phosphoglycerate becomes 2 phosphoglycerate

20
Q

What enzyme is responsible for step 7

A

phosphoglycerate mutase

21
Q

What is step 8 of glycolysis ?

A

2 phophylglcerate becomes phophylenolpyruvate

22
Q

What enzyme is used in step 8 of glycolysis

A

enolase

23
Q

What is step 9 of glycolysis

A

phopylenol pyruvate becomes pyruvate

24
Q

enzyme for tep 9 of glycolysis

A

pyruvate kinase

25
Q

What occurs to electron carrier in 1st step

A

NADP+ is reduced in NADPH

26
Q

What are the intermediates of citric acid cycle ?

A

citrate, iso-citrate, alpha-ketoglutarate, succinate, fumarate, malate, and oxaloacetate)

27
Q

Does glycolysis require oxygen ?

A

No

28
Q

What is the 2nd step of oxidative phase of pentose phosphate

A

6 phosphylglucerate becomes ribulose 5 phosphate

29
Q

What happens in non oxidative phase

A

ribulose 5 phosphate becomes ribose 5 phosphate

30
Q

what is the next step of gluconeogenesis ?

A

oxaloacetate is converted to phophyenolpyruvate

31
Q

What enyme is responsible for step 2 of gluconeogenesis ?

A

phophylenolpryruvate carboxalase

32
Q
A

Biochem (9 decks)

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