Multiple choice

Choose the incorrect reaction.

  1. Ribulose-1,5-bisphosphate → 3-phosphoglycerate: Rubisco

  2. 3-Phosphoglycerate → Glycerate-1,3-bisphosphate: Phosphoglycerate kinase

  3. Dihydroxy acetone phosphate → Fructose 1,6-bisphosphate: Aldolase

  4. Xylulose 5-phosphate → Ribulose 5-phosphate: ribose-5-phosphate isomerase

  5. Ribulose 5-phosphate → Ribulose-1,5-bisphosphate: Phosphoribulokinase ribose 5-phosphate isomerise

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Conversion of xylulose 5-phosphate to ribulose 5-phosphate is catalysed by ribulose-phosphate epimerase. Conversion of ribose 5-phosphate to ribulose 5-phosphate is catalysed by ribose 5-phosphate isomerise.