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Figure 61. Lacc Acid Fermentaon
Source: https://s3-us-west-2.amazonaws.com/courses-images/wp-content/uploads/sites/1842/2017/05/26154632/
figure-07-05-02.png
The bacteria that make yogurt carry out lacc acid fermentaon, as do
human red blood cells which do not possess mitochondria and, thus,
cannot perform cellular respiraon.
2. Alcohol fermentation
Alcohol fermentaon is another process in which NADH donates its
electrons to a derivave of pyruvate, producing ethanol. Going from
pyruvate to ethanol is a two-step process. In the first step, a carboxyl
group is removed from pyruvate and released in as carbon dioxide,
producing a two-carbon molecule called acetaldehyde. In the second
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