MUSCLE PHYSIOLOGY

PHYSIOLOGY

MUSCLE ENERGETICS GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ will cleave the hexose into two molecules of triose.
A
Hexokinase
B
Glucokinase
C
Aldolase
D
Enolase
Explanation: 

Detailed explanation-1: -Carbohydrate metabolism At this stage fructose 1, 6-bisphosphate is cleaved to give two triose phosphate molecules, namely glyceraldehyde 3-phosphate and dihydroxyacetone phosphate in a reversible reaction which is catalysed by aldolase.

Detailed explanation-2: -The upper portion of the EMP pathway invests two ATP molecules to activate (phosphorylate) the hexose sugar glucose, and rearrange it for cleavage into two triose phosphate molecules (Figure 3). The key enzyme is 6-phosphofructokinase (PFK).

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