Anaerobic Respiration

What is the difference between anaerobic respiration and aerobic respiration?

Expert Answers
dwalt70939 eNotes educator| Certified Educator

Respiration is a molecular process that breaks down glucose and produces wastes products and energy. If the respiration is carried out in the presence of oxygen it is called aerobic respiration and produces a great amount of energy, and carbon dioxide and water as waste products. If the respiration is carried out without the use of oxygen it is called anaerobic respiration and produces small amounts of energy, and alcohol, or lactic acid or other compounds as a waste product depending on what kinds of cells are active.

genetics56 eNotes educator| Certified Educator

Aerobic respiration is the release of energy from glucose or in the presence of Oxygen. Anaerobic respiration refers to the oxidation of a molecule (or molecules) to produce engery in the absence of oxygen.  

sid-sarfraz | Student


Respiration is the process through which living beings inhale oxygen and exhale carbon dioxide. 

It is generally a process through which glucose is broken down to make energy using oxygen.


Aerobic means "with air" and as respiration needs oxygen, we call it aerobic respiration. 

The chemical equation for respiration is:

Glucose + Oxygen =Carbon dioxide + Water + Energy

The carbon dioxide and water are waste products, removed from the body via the lungs, skin and kidneys.


Respiration "without oxygen" is called anaerobic respiration.

It produces much less energy and does not break down glucose completely. 


Glucose = Energy + Lactic Acid

Anaerobic respiration occurs when there is not enough oxygen available but the body still needs energy to move. This might be during vigorous exercise.

Instead of carbon dioxide, lactic acid is produced. 

Lactic acid builds up in muscles and causes them to ache and develop muscle cramps. 

Fast deep breathing as you recover soon supplies the body with enough oxygen to combine with the lactic acid to make carbon dioxide and water. The amount of oxygen needed to remove the lactic acid is called the oxygen debt.

monikagoma | Student
 1. occurs in presence of oxygen.
 2. CO2 and water is produced
 3. 38 ATPenergy is liberated  4.occurs in plants' and animals' cells
 5. C6H12O6 --> CO2 + H2O + ATP

1. occurs in absence of oxygen
2. Lactic Acid or Alchol is produced
3. 2ATP energy is liberated
4. occurs in many anaerobic bacteria and human muscle cells.
5. in muscles, lactic acid is produced while bacteria as Yeast produces Alcohol (Ethanol)
6. C6H12O6 --> Lactic acid / C2H5OH + ATP
dih08 | Student

Aerobic respiration is where energy is made using oxygen. This happens in activities such as running a marathon.

Anaerobic respiration is where energy is made in the absence of oxygen. It's only a short term way of producing energy quickly, i.e. during a 10 sec sprint.

mostly used to describe the difference type of respiration in bacteria.

Aerobic respiration is the one that repuire oxygen for metabolism and cannot live without it,example such as pneumonia.many of these bacteria cause respiratory illnesses.

Anaerobic is the one that do NOT require oxygen.There are also two types of Anaerobic respiration,Obligate and Facultative.

Obligate carry on metabolism ONLY anaerobically,they cannot use oxygen,and are poisoned by it. E.g: denitrifying bacteria.

Facultative can use oxygen for metabolism(cellular respiration) if is available,but carry on metabolism anaerobically(by fermentation) when necessary. E.g:botulism,as well as tetanus