PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -Glycolysis generates a small amount of energy, and provides the entry point for the pyruvate dehydrogenase reaction and the TCA cycle. For a good summary of the glycolytic pathway, check Devlin, Figure 15.6.
Detailed explanation-2: -The statement regarding glycolysis which is true is oxygen is not required. In the process of glycolysis, oxygen is not required because it is an anaerobic process that is independent of oxygen.
Detailed explanation-3: -The sixth step in glycolysis oxidizes the sugar (glyceraldehyde-3-phosphate), extracting high-energy electrons, which are picked up by the electron carrier NAD+, producing NADH. The sugar is then phosphorylated by the addition of a second phosphate group, producing 1, 3-bisphosphoglycerate.