how is glyocolysis and fermentation simmilar?

Answer 1

They both involve the oxidation and reduction of NAD+ during the process of producing ATP via the glycolytic pathway. Glycolysis utilizes NAD+ to produce ATP while, in the absence of oxygen as the terminal electron acceptor, the fermentation step reoxidizes the NADH. In this way, fermentation 'regenerates' the NAD+ supply for glycolysis.

Answer 2

The similaritity:

They both also occur in the cytoplasm of the cells.


The difference:

Glycolysis is an aerobic respiration. While Fermentation is Anaerobic respiration. However, Glycolysis is happened even with or without oxygen.