MUSCLE PHYSIOLOGY

Detailed explanation-1: -Phosphorylation of glucose to glucose-6-phosphate during glycolysis is catalysed by the help of the enzyme hexokinase, So, the correct option is ‘Hexokinase’.

Detailed explanation-2: -So, the correct option is ‘Fructose 1, 6-bisphosphate’

Detailed explanation-3: -Overall, glycolysis converts one six-carbon molecule of glucose into two three-carbon molecules of pyruvate.

Detailed explanation-4: -Phosphorylation of glucose serves two important purposes. First, the addition of a phosphate group to glucose effectively traps it in the cell, as G6P cannot diffuse across the lipid bilayer. Second, the reaction decreases the concentration of free glucose, favoring additional import of the molecule.