Question

In which one of the following processes CO${}_2$ is not released

• A. Aerobic respiration in animals.
• B. Alcoholic fermentation.
• C. Lactate fermentation.
• D. Aerobic respiration in plants.

Answer 1

The correct option is C Lactate fermentation.

In lactic acid fermentation which occurs in the absence of oxygen like fermentation after glycolysis form lactate which gets deprotonated to form lactic acid while in fermentation acetaldehyde converts into alcohol by deprotonation of it.

As lactate does not contain any oxygen in it that is the reason at the end carbon dioxide is not formed.

So the correct option is 'Lactate fermentation'.