What respiration requires no oxygen?

Anaerobic respiration does not require oxygen. It is a process that some organisms use to convert organic compounds into energy without the use of oxygen. Anaerobic respiration is also referred to as fermentation.

Organisms that perform anaerobic respiration include yeast, bacteria, and some plants.

Steps of Anaerobic Respiration

1. Glucose is broken down into two molecules of pyruvate.

2. Pyruvate is converted into Acetaldehyde.

3. Acetaldehyde is reduced to ethanol (in plants and yeast) or to lactic acid (in animals and some bacteria).

The overall equation for anaerobic respiration can be represented as:

Glucose → Ethanol + Carbon dioxide + Energy

or

Glucose → Lactic acid + Energy