Question

The maximum yield of ATP from the complete oxidation of sucrose via aerobic respiration is
A)37
B)44
C)60
D)50

Answer 1

Hint: The theoretical maximum yield of ATP during aerobic respiration for the oxidation of one molecule of glucose is 38. How this number is obtained is briefly described in terms of substrate-level phosphorylation, oxidative phosphorylation, and the component pathways concerned.

Complete answer:
In the phosphorylation stage of aerobic respiration, complete oxidation of sucrose via aerobic respiration occurs. This guarantees the best ATP yield. In the oxidative phosphorylation stage of aerobic respiration, oxygen is essential. Hydrogen ions react with oxygen to create water during oxidative phosphorylation.

Hydrogen ions and high energy electrons hold the NADH formed in the Krebs cycle. Using their energy to form ATP molecules, the electrons move through a respiratory chain. Oxygen improves ATP manufacturing. The integration of oxygen with hydrogen ions and the acceptance of electrons from water permits the release of further hydrogen ions from the electron carrier system. This allows more energy to form in the form of ATP.

Hence, the correct answer is option (A)

Note: Total oxidation of sucrose via aerobic respiration occurs in the phosphorylation stage, ensuring maximum ATP production. Phosphorylation is an important process by which protein behavior is changed after it is formed. In addition to the phosphate groups, kinase enzymes help with protein molecules. The ATP supplies this phosphate group which is used here.