Multiple choice

Match the entries in column I (enzymes) with that in column II (reactions catalysed by them during glycolysis) and select the correct answer.

 
Column - I
Column - II
P. Glucokinase 1. Conversion of glucose 6-phosphate to fructose 6-phosphate
Q. Phosphogluco isomerase 2. Phosphorylation of fructose 6-phosphate to produce fructose-1,6-diphosphate
R. Phosphofructokinase 3. Phosphorylation of glucose is to form glucose 6-phosphate

  1. P - 1, Q - 2, R - 3

  2. P - 3, Q -1, R - 2

  3. P - 2, Q -1, R - 3

  4. P - 2, Q - 3, R - 1

  5. P - 1, Q - 3, R - 2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Glucose is phosphorylated to form glucose 6-phosphate by the enzyme glucokinase. Glucose 6-phosphate is converted to fructose 6-phosphate by the enzyme phosphogluco isomerise. Fructose 6-phosphate is phosphorylated irreversibly at 1 position catalyzed by the enzyme phosphofructokinase to produce fructose-1,6-diphosphate.

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