MUSCLE PHYSIOLOGY

PHYSIOLOGY

MUSCLE ENERGETICS GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the first stages of glycolysis glucose (6C) will be converted in to ____ ?
A
Pyruvic acid
B
Citric 1, 6-phosphate
C
Acetyl coA
D
Fructose 1, 6-biphosphate
Explanation: 

Detailed explanation-1: -Glucose is first converted to fructose-1, 6-bisphosphate in a series of steps that use up two ATP. Then, unstable fructose-1, 6-bisphosphate splits in two, forming two three-carbon molecules called DHAP and glyceraldehyde-3-phosphae.

Detailed explanation-2: -So, the correct option is ‘Aldolase’.

Detailed explanation-3: -In the fourth step of glycolysis, a lyase reaction splits the 6-carbon fructose-1, 6-bisphosphate into two 3-carbon sugars, glyceraldehyde-3-phosphate and dihydroxyacetone phosphate. The dihydroxyacetone phosphate is rearranged by another isomerase to form a second glyceraldehyde-3-phosphate.

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