Fermentation

During GLYCOLYSIS, NAD+ is _______ to form NADH; with no NAD around this reaction CANNOT happen causing glycolysis to ___ and the little ATP that is made is no longer formed; this means that ALL of the NAD has already been turned into NADH.

reduced, end

Fermentation is a way to _______ NADH back to ____ to keep the steps of glycolysis going to make ATP for cell survival.

oxidize, NAD+

There are TWO big types of FERMENTATION, what are they?

1) Alcoholic Fermentation 2) Acidic Fermentation

ALCOHOLIC Fermentation begins with the _______ formed at the END of GLYCOLYSIS; instead of going into KREBS it gets turned into ____________ and then into ____ ______; the electrons then come off of the NADH and a couple of protons to regenerate the ____ that can be fed back into GLYCOLYSIS keeping step 5 going.

pyruvate, acetaldehyde, ethyl alcohol, NAD+

ACIDIC Fermentation is the same overall process the reaction is just different: it produces _____ ____ or a _______ of acids

lactic acid, mixture

___________ fermentation is when lactic acid bacteria reduce pyruvate to lactic acid ONLY

Homolactic

____________ fermentation: glucose is fermented to a MIXTURE of lactic acid, acetic acid, and carbon dioxide

Heterolactic