How many ATP molecules are used and produced per molecule of glucose during glycolysis?A. The first half of glycolysis uses 4 ATPs, and the second half of glycolysis produces 2 ATPs.B. The first half of glycolysis produces 4 ATPs, and the second half of glycolysis uses 2 ATPs.C. The first half of glycolysis uses 2 ATPs, and the second half of glycolysis produces 4 ATPs.D. The first half of glycolysis produces 2 ATPs, and the second half of glycolysis uses 4 ATPs.
Question
How many ATP molecules are used and produced per molecule of glucose during glycolysis?A. The first half of glycolysis uses 4 ATPs, and the second half of glycolysis produces 2 ATPs.B. The first half of glycolysis produces 4 ATPs, and the second half of glycolysis uses 2 ATPs.C. The first half of glycolysis uses 2 ATPs, and the second half of glycolysis produces 4 ATPs.D. The first half of glycolysis produces 2 ATPs, and the second half of glycolysis uses 4 ATPs.
Solution
During glycolysis, the breakdown of glucose, there are two main phases: the energy investment phase and the energy payoff phase. In the energy investment phase, two ATP molecules are used to activate glucose, resulting in the formation of fructose-1,6-bisphosphate. This is the first half of glycolysis.
In the energy payoff phase, fructose-1,6-bisphosphate is broken down into two molecules of glyceraldehyde-3-phosphate. During this process, four ATP molecules are produced through substrate-level phosphorylation. This is the second half of glycolysis.
Therefore, the correct answer is option C: The first half of glycolysis uses 2 ATPs, and the second half of glycolysis produces 4 ATPs.
Similar Questions
If glucose is broken down through aerobic respiration, a number of ATP molecules can be made from the energy extracted. How many molecules of ATP are possible?A. 10 to 12B. 2 to 4C. 36 to 38D. 24 to 30
Two glucose molecules undergo cellular respiration, what is the total number of ATP molecules produced? Group of answer choices100-200 ATP molecules60-80 ATP molecules20-40 ATP molecules200-400 ATP molecules
Select all correct characterizations of glycolysis.Multiple select question.It directly yields two ATP molecules per glucose.It produces NADH.It produces two pyruvate molecules per glucose.It releases carbon dioxide from glucose.It requires oxygen.
Approximately how many ATP molecules are made, by ATP synthase, per glucose?Group of answer choices10-20 ATP molecules100-200 ATP molecules50-100 ATP molecules30-40 ATP molecules
What is the gross number of ATP molecules produced in Glycolysis disregarding input in one glucose of molecule?Group of answer choices1264
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.