Users' questions

Does aerobic respiration produce 36 or 38 ATP?

Does aerobic respiration produce 36 or 38 ATP?

The theoretical maximum yield of ATP for the oxidation of one molecule of glucose during aerobic respiration is 38. In terms of substrate-level phosphorylation, oxidative phosphorylation, and the component pathways involved, briefly explain how this number is obtained.

How many total ATP are produced during aerobic respiration?

Advantages of Aerobic Respiration With oxygen, organisms can break down glucose all the way to carbon dioxide. This releases enough energy to produce up to 38 ATP molecules. Thus, aerobic respiration releases much more energy than anaerobic respiration.

How many ATP molecules are produced for each glucose molecule?

two ATPs
Thus the net yield is two ATPs per glucose molecule. The remaining 34 molecules of ATP generated during the complete aerobic metabolism of glucose are synthesized during oxidation of pyruvate to CO2 and H2O in mitochondria.

Why is it 36 or 38 ATP?

If you use the phosphero-glycerol shuttle you get 36 ATP (trades cytoplasmic NADH for mitochondrial FADH2). NADH yields ~ 3 ATP thats why you get 38 if you use the malate shuttle. FADH2 yields ~ 2 ATP thats why you get 36 if you use the phosphero-glycerol shuttle.

Does aerobic respiration produce 36 ATP?

Water and carbon dioxide are released as byproducts. The three stages of aerobic cellular respiration are glycolysis (an anaerobic process), the Krebs cycle, and oxidative phosphorylation….Aerobic vs anaerobic respiration.

Aerobic Anaerobic
ATP produced Large amount (36 ATP) Small amount (2 ATP)

How are 36 ATP produced?

Most of the ATP produced by aerobic cellular respiration is made by oxidative phosphorylation. Biology textbooks often state that 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).

How are 32 ATP produced?

In a eukaryotic cell, the process of cellular respiration can metabolize one molecule of glucose into 30 to 32 ATP. The process of glycolysis only produces two ATP, while all the rest are produced during the electron transport chain.

Why are 4 ATP produced in glycolysis?

Energy is needed at the start of glycolysis to split the glucose molecule into two pyruvate molecules. The energy to split glucose is provided by two molecules of ATP. As glycolysis proceeds, energy is released, and the energy is used to make four molecules of ATP.

How many kilocalories are in each molecule of ATP?

The hydrolysis of one ATP molecule releases 7.3 kcal/mol of energy (∆G = −7.3 kcal/mol of energy).

Are there 36 or 38 ATP?

ATP yield during aerobic respiration is not 36–38, but only about 30–32 ATP molecules / 1 molecule of glucose .