Question

describe de role of anaerobic respiration in yeast during production of ethanol for biofuels

Answer 1

Respuesta:

This is also called fermentation. Fermentation is a way of harvesting chemical energy without using oxygen or the electron transport chain. So while some cells will create lactate in anaerobic conditions, it just so happens that yeast produces ethanol.

In alcohol fermentation, pyruvate is converted to ethanol (ethyl alcohol) in two steps.

The first step releases carbon dioxide from the pyruvate which is then converted to a two carbon compound called acetaldehyde.

In the second step, acetaldehyde is reduced by NADH to ethanol which also regenerates the NAD+ supply that continues the process of glycolysis.

Explicación: