Which of the following is the major regulatory enzyme of Glycolysis?

Hexokinase

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phosphofructokinase

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aldolase

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phosphor-triose-isomerase

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Solution

The correct option is A Hexokinase
In first step of glycolysis, glucose is converted in to glucose -6- phosphate by the enzyme Hexokinase or Glucokinase.
Hexokinase is available for all cell where as Glucokinase acts only for liver cell.
It also require magnesium as cofactor.
Hexokinase is the major regulatory enzyme of Glycolysis.
Hence, the correct answer is 'Hexokinase'

Suggest Corrections

List-I (Enzyme)	List-II( Conversions)
a. Phosphogluco isomerase	$1$ . Fructose $\to$ Glucose
b. Triose phosphate isomerase	$2$ . Glucose $\to$ Glucose- $6$ -Phosphate
c. Fructose diphosphate aldolase	$3$ . Glucose- $6$ -phosphate $\to$ Fructose- $6$ -phosphate
d. Hexokinase	$4$ . Glyceraldehydes- $3$ -phosphate $\to$ Dihydroxy acetone phosphate
	$5$ . Fructose- $1$ , $6$ -diphosphate $\to$ Glyceraldehydes- $3$ -phosphate