Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Assume that you have 93 molecule of glucose. All of he glucose is absorbed into

ID: 9372 • Letter: A

Question

Assume that you have 93 molecule of glucose.  All of he glucose is absorbed into the cell and 40% is immediately utilized through glycolysis and  the TCA cycle.  The remaining 60% is stored as glycogen and later in the day approx. 75% of the previously stored glycogen is utilized for energy production by running through glycolysis and the TCA cycle. Calculate the net APT production from all of these reactions.  Be specific

 

So basically 78.87 molecules of glucose go through glycolysis and TCA which leaves 13.95 stored as glycogen. 

Explanation / Answer

Think about the steps of glucose breakdown in the cell. 1. Glycolysis: glucose broken down into 2 mol pyruvate. net: 4 ATP, 2 NADH 2. Aerobic metabolism: 2 mol. pyruvate to 2 Acetyl CoA Net ATP: 2 NADH 3. Citric Acid cycle: Net: 2 ATP, 6 NADH, 2 FADH2 So you have now netted 4 ATP so far, plus NADH and FADH2 molecules to run through the electron transport chain. 1 NADH= 2.5 ATP 1 FADH2= 1.5 ATP Now you can calculate the amount of ATP produced by 1 molecule of glucose, and apply that to the data in the question to find the answer.