How many net ATPs can a eukaryotic cell generate in the TCA cycle from the products of one molecule of glucose? Question 12 options: a) 1 b) 2 c) 3 d) 4 e) 34
How many net ATPs can a eukaryotic cell generate in the TCA cycle from the products of one molecule of glucose? Question 12 options: a) 1 b) 2 c) 3 d) 4 e) 34
Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter4: How Cells Obtain Energy
Section: Chapter Questions
Problem 17CTQ: Both prokaryotic and eukaryotic organisms carry out some form of glycolysis. How does ha fact...
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How many net ATPs can a eukaryotic cell generate in the TCA cycle from the products of one molecule of glucose?
Question 12 options:
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Expert Solution
Step 1
The tricarboxylic acid (TCA) cycle is the metabolic pathway in the presence of oxygen which occurs after glycolysis and pyruvate oxidation. Glycolysis produces two pyruvate molecules from the breakdown of one molecule of glucose. The pyruvate molecules undergo pyruvate oxidation to produce two acetyl CoA molecules. Each of these acetyl CoA molecules enter the TCA cycle and leads to the production of ATP molecules, CO2, NADH, and FADH2 molecules.
The TCA cycle consists of eight enzyme-catalyzed steps, producing eight intermediates. It starts with the fusion of an acetyl CoA molecule with an oxaloacetate molecule and completes with the regeneration of an oxaloacetate molecule.
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