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Glycolysis Payoff Phase

Identify the ...

Question

Identify the reactions of glycolysis, where ATP is used up.

Conversion of glucose to glucose-6-phosphate

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Conversion of 1, 3-bisphosphoglyceric acid to 3-phospho glyceric acid

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Conversion of fructose-6-phosphate to fructose-1,6-bisphosphate

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Both A & C

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Solution

The correct option is D
Both A & C

There are two phosphorylation reactions in glycolysis where ATP acts as phosphate donor. During the formation of glucose-6-phosphate from glucose and during the formation of fructose 1, 6-bisphosphate from fructose-6-phosphate.

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1, 3

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1, 3

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1, 3,

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1, 6

	Steps	ATP Utilisation	ATP Production
1.	$G l u c o s e \to G l u c o s e - 6 - p h o s p h a t e$	P	X
2.	$F r u c t o s e - 6 - p h o s p h a t e \to F r u c t o s e - 1, 6 - b i s p h o s p h a t e$	1	Q
3.	$1, 3 - b i s p h o s p h o g l y c e r i c a c i d \to 3 - P h o s p h o - g l y c e r i c a c i d$	X	R
4.	$2 - P h o s p h o e n o l p y r u v i c a c i d \to P y r u v i c a c i d$	S	2

	List I		List II
A	Hexokinase	1	Conversion of fructose-6-phosphate to fructose-1-6-diphosphate
B	Triose phosphate dehydrogenase	2	Conversion of glucose to glucose-6-phospahte
C	Phosphoglyceromutase	3	Conversion of 1, 3-diphosphoglyceraldehyde to 1, 3-diphosphoglyceric acid
D	Phosphofructokinase	4	Conversion of 3-phosphoglyceric acid to 2-phosphoglyceric acid

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