Answer:
Glycolysis
(i) In this process,
glucose undergoes partial oxidation to form two molecules of pyruvic acid.
(ii) In plants, this
glucose is derived from sucrose which converted into glucose and fructose by
the enzyme, invertase and these two monosaccharides readily enter the
glycolytic pathway.
(iii) Glucose and fructose
are phosphorylated to give rise to glucose-6-phosphate by the activity of the
enzyme hexokinase.
(iv) This phosphorylated form
of glucose then isomerises to produce fructose-6-phosphate.
(v) A chain of ten
reactions, under the control of different enzymes, takes place to produce
pyruvate from glucose.
(vi) Utilisation of ATP
during glycolysis
(a) During the conversion of
glucose into glucose-6-phosphate.
(b) During the conversion of
fructose-6-phosphate to fructose-1, 6-diphosphate.
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