Question

In glycolysis enzyme, playing key role in splitting $6C$ compound into $3C$ compound is

• A. hexokinase
• B. aldolase
• C. isomerase
• D. none of these

Answer 1

Answer: (B)

The process of conversion of glucose units to pyruvic acid though a series of enzyme catalysed reactions without the utilisation of $O_2$ is called glycolysis. It is also known as EMP pathway. In this fructose 1,6 diphosphate is the 6-C sugar that is broken down to glyceraldehyde-3 phosphate and dihydroxyacetone phosphate both of which are 3-C compounds. It involves the catalytic influence of an enzyme, aldolase. This reaction is interconvertible.
Fructose $1,6$ diphosphate $\stackrel{\text{Aldolase}}{\rightleftharpoons }$ Glyceraldehyde 3 phosphate Dihydroxy acetone phosphate