Question

List the products of glycolysis. How many ATP molecules are produced and consumed by glycolysis? What effect does the presence of oxygen have on the events that follow glycolysis?

Answer 1

The products of glycolysis are two pyruvate molecules, four ATP molecules, and two NADH molecules with a net gain of two ATP after consumption. Oxygen presence allows for aerobic respiration and more ATP production following glycolysis, while its absence results in fermentation.

Step-by-step explanation:

Outcomes of Glycolysis

The products of glycolysis include two pyruvate molecules, four ATP molecules, and two NADH molecules. During glycolysis, two ATP molecules are consumed in the early stages, resulting in a net gain of two ATP molecules for the cell.

ATP Production and Consumption

Glycolysis results in a net production of two ATP molecules. Initially, two ATP molecules are used to phosphorylate glucose and its subsequent intermediate, which means that although four ATP molecules are produced later in the process, the initial consumption leaves us with a net gain of two ATP molecules.

Effect of Oxygen on Glycolysis

The presence of oxygen determines the cell's ability to undergo aerobic respiration after glycolysis. If oxygen is present, pyruvate is further metabolized in the citric acid cycle, and the electron transport chain can produce a significant amount of ATP. In the absence of oxygen, glycolysis is followed by fermentation to ensure continued generation of ATP and recycling of NADH to NAD+.

Answer 2

The product of glycolysis are Pyruvate,NAADH and ATP.

Step-by-step explanation:

During glycolysis 4 molecules of ATP are produced by the mechanism called substrate lebel phosphorylation and 2 molecules of ATP are consumed,one in step 1 and second in step 3.

The presence of oxygen helps in the complete oxidation of glucose into carbon dioxide(CO2) and water(H2O) along with the formation of Adenosine triphosphate during electron transport chain by the help of oxidative phosphorylation.