PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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3-phosphoglycerate to 2-phosphoglycerate
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fructose-6-phosphate to fructose 1, 6 bisphosphate
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glyceraldehyde-3-phosphate to 1, 3-bisphosphoglycerate
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glucose-6-phosphate to fructose-6-phosphate
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Detailed explanation-1: -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 reactions of glycolysis convert glucose 6-phosphate to pyruvate. The entire process is cytosolic. Glucose 6-phosphate is reversibly isomerized to form fructose 6-phosphate.
Detailed explanation-3: -This is one of two energy consumption steps and is an irreversible reaction. Next, an isomerase reaction converts glucose-6-phosphate into fructose-6-phosphate by rearranging covalent bonds. Another kinase removes a phosphate group from ATP and gives it to fructose-6-phosphate to form fructose-1, 6-bisphosphate.