Question

In glycolysis, ATP is used in which of the following reactions?

• A. Conversion of fructose 6-phosphate to fructose 1, 6-bisphosphate
• B. Conversion of 3-phosphoglyceraldehyde is converted to 1, 3-bisphosphoglycerate
• C. Conversion of glucose into glucose 6-phosphate
• D. Both (A) and (C)

Answer 1

Answer: (D)

ATP is utilised at two steps: first in the conversion of glucose into glucose 6-phosphate and second in the conversion of fructose 6-phosphate to fructose 1, 6-bisphosphate.
One step where NADH + H⁺ is formed from NAD⁺; this is when 3-phosphoglyceraldehyde (PGAL) is converted to 1, 3-bisphosphoglycerate (BPGA).