If one molecule of glucose undergoes the reaction of glycolysis, what is produced
3 NADH and 1 FADH2
4 ATPs, 6 NADH, and 2 FADH2
1 ATP, 3 NADH, and 1 Pyruvate
2 ATPs, 2 NADH and 2 Pyruvate
The correct answer is: 2 ATPs, 2 NADH, and 2 Pyruvate.
If one molecule of glucose undergoes the reaction of glycolysis, the following products are produced:
2 ATPs, 2 NADH, and 2 Pyruvate.
To determine the products of the glycolysis reaction when one molecule of glucose undergoes glycolysis, we can break down the process step by step.
Glycolysis is an anaerobic process that occurs in the cytoplasm of cells and involves the breakdown of glucose (a six-carbon molecule) into two molecules of pyruvate (a three-carbon molecule) along with the production of ATP and reducing agents.
Step 1: Glucose Activation
The first step of glycolysis involves the activation of glucose. Glucose is phosphorylated by using one ATP molecule, resulting in the formation of glucose-6-phosphate. In this step, one ATP molecule is consumed.
Step 2: Glucose Splitting
The second step of glycolysis is the cleavage of glucose-6-phosphate into two three-carbon molecules known as glyceraldehyde-3-phosphate (G3P).
Step 3: Energy Generation
In this step, each G3P molecule is converted to pyruvate through a series of reactions. Along the way, energy is generated in the form of ATP and reducing agents.
Step 4: ATP Production
During steps 6 and 7 of glycolysis, energy is generated to produce ATP. For every molecule of G3P, two ATP molecules are produced through substrate-level phosphorylation. In total, four ATP molecules (two ATP molecules per G3P) are generated during glycolysis.
Step 5: Reducing Agent Production
Throughout steps 6 and 10 of glycolysis, the coenzyme NAD+ is reduced to NADH. For each molecule of glyceraldehyde-3-phosphate (G3P) produced, two molecules of NADH are generated. In total, six NADH molecules are produced.
Therefore, when one molecule of glucose undergoes glycolysis, the correct answer is:
4 ATPs, 6 NADH, and 2 Pyruvate.
Note: The option "2 FADH2" mentioned in the answer choices is incorrect since FADH2 is not directly produced in the glycolysis pathway. It is formed in the later stages of cellular respiration during the citric acid cycle (also known as the Krebs cycle).