Question

1. Fructose enters the glycolytic pathway through the process of phosphorylation. What is the name of the compound that enters into glycolysis?

2. How many ATP can be generated from one fructose molecule during aerobic cellular respiration? Show all calculations for full marks.

Answer 1

1) All the starch and sugar enter the glycolysis as GLUCOSE.

2) 1 NADH molecule produces 3 ATP
1FADH molecule produces 2 ATP

In glycolysis --------> 2NADH are formed. Thus 6 ATP are formed. But 2 ATP molecules are used in this process . SO The net amount produced in glycolysis is 4 ATP

In Krebs cycle ------> 10 NADH are formed. SO 30 ATP are formed
2 FADH formed thus resulting in 4 ATP

So the total ATP produced is 38 ATP