Why is cellular respiration more efficient when oxygen is present in cells?

Answer 1

Without oxygen - only glycolysis occurs. This results in very few ATP molecules.

With oxygen, all of celluar respiration occurs and this results in almost 40 ATP molecules. So, oxygen is essential to the production of mass ATP molecules.

Answer 2

Glycolysis generates only 2 molecules of ATP per molecule of glucose broken. Cellular respiration as a whole, however, produce 36 (eukaryotic) or 38 (prokaryotic) molecules of ATP per molecule of glucose respired.

cellular respiration is considered to be much more efficient than glycolysis alone because cellular respiration produces so much more energy. only two molecules of atp are produced in each round of glycolysis compared with an additional 34 moleculse of atp produced through the krebs cycle and the electron transport chain

Answer 3

When oxygen is present, one glucose molecule yields 36-38 molecules of ATP. This is due to the electron transport chain, which is only involved when oxygen is available. Without oxygen, one glucose molecule yields a net gain of 2 ATP.

Answer 4

FIRST OFF - glycolysis and respiration are two different things.

Glycolysis generates only 2 molecules of ATP per molecule of glucose broken. Cellular respiration as a whole, however, produce 36 (eukaryotic) or 38 (prokaryotic) molecules of ATP per molecule of glucose respired.

cellular respiration is considered to be much more efficient than glycolysis alone because cellular respiration produces so much more energy. only two molecules of ATP are produced in each round of glycolysis compared with an additional 34 moleculse of ATP produced through the Krebs cycle and the electron transport chain

Glycolysis generates only 2 molecules of ATP per molecule of glucose broken. Cellular respiration as a whole, however, produce 36 (eukaryotic) or 38 (prokaryotic) molecules of ATP per molecule of glucose respired.

cellular respiration is considered to be much more efficient than glycolysis alone because cellular respiration produces so much more energy. only two molecules of ATP are produced in each round of glycolysis compared with an additional 34 moleculse of ATP produced through the Krebs cycle and the electron transport chain

Answer 5

Cellular respiration is more efficient than fermentaion because cellular respiration produces overall more ATP than fermentaion.

Cellular respiration produces 36 ATP where as fermentaion produces 2 ATP.

There are 2 types of fermentation: Lactic acid and Alcoholic

Lactic acid fermentation causes mucle soreness.

Alcoholic fermentation is when bacteria makes alcohol.

Answer 6

When glucose is oxidized to Carbon bi oxide and water, energy is released. Whether it is biological oxidation or direct burning, energy is EXACTLY same.Not a single photon, more or less. ( Law of conservation of Energy. ) In cellular respiration, you have oxidation, step by step. In absence of Oxygen you can have Glycolysis, giving very little energy and Human being will die, if oxygen is not given for 5 minutes. You get only 2 ATP molecules in anaerobic respiration, while in oxidation with oxygen, you get total 38 ATP molecules ( Including the above 2. ) So obviously cellular respiration can not be efficient with out Oxygen.

Answer 7

Cellular respiration is naturally more efficient with oxygen because oxygen is a reactant in the process of cellular respiration. Also, it is present at the end of electron transport chains.

Answer 8

Cellular respiration and glycolysis are types of respiration in organisms. Cellular respiration is more efficient because it produces more energy than glycolysis alone.