Question

Which of the following is the energy yielding step of glycolysis?

• A. Glucose $\to$ Glucose-6-phosphate
• B. BPGA $\to$ PGA
• C. Fructose-1,6-biphosphate $\to$ PGAL
• D. Phosphoglycerate $\to$ Phosphoenolpyruvate

Answer 1

The correct option is B BPGA $\to$ PGA

In glycolysis, 2 steps are energy yielding:
Step 1 - The conversion of BPGA to 3-phosphoglyceric acid (PGA).
Step 2 - Conversion of PEP to pyruvic acid.

Glucose to glucose-6-phosphate is energy consuming.

Fructose-1,6-biphosphate to PGAL is splitting or cleavage.

Phosphoglycerate to phosphoenolpyruvate is dehydration.