Which of the following sugars is the primary product of the pentose phosphate pathway?

A Glucose-6-phosphate
B Ribose-5-phosphate ✓
C Fructose-6-phosphate
D Xylulose-5-phosphate

Explanation

The pentose phosphate pathway is an alternative route for glucose breakdown that generates NADPH and pentoses, with ribose-5-phosphate being the primary product.

Source

Stryer Biochemistry
Carbohydrate Metabolism Biochemistry Pentose Phosphate Pathway Hard MEDICAL Confidence: high