Fermentation Flashcards
(22 cards)
Is pyruvate oxidized or reduced in fermentation?
Reduced
Is pyruvate oxidized or reduced in cellular respiration?
Oxidized
Does cellular respiration or fermentation require oxygen?
cellular respiration
In fermentation, what happens o NADH?
It is oxidized
Products of alcoholic fermentation
CO2 and ethanol
NAD+ is regenerated via redox
Products of lactate fermentation
lactate and NAD+ is regenerated
Anaerobic respiration
without oxygen
aerobic respiration
with oxygen
Pyruvate + NAD+ –> acetyl Coa + NADH + H+
pyruvate oxidation (difference between cellular respiration and fermentation
Pyruvate + NADH + H+ —> lactate + NAD+
Pyruvate reduction in fermentation
True or False. Oxidation of NADH to NAD+ produces 2 ATP during fermentation.
False.
True or False. Both alcoholic fermentation and lactic acid fermentation product ethanol or lactate and CO2
False, lactate does not produce CO2.
After glucose is oxidized to pyruvate in glycolysis, most of the original energy of glucose is where?
Retained in the pyruvate
In the catabolism of fat, it is broken down into….
in cellular respiration
glycerol and fatty acids
What is glycerol used for in cellular respiration or fermentation?
can be converted to glyceraldehyde phosphate (G3P), an intermediate of glycolysis
What are fatty acids converted into?
acetyl groups
How are fatty acids converted to acetyl groups?
Beta Oxidation
The respiration of a 6-carbon fatty acid yields how much more energy than glucose.
20%
What happens to proteins in protein catabolism?
amino acids undergo deanimated to remove the amino group
Where does the deanimated protein go?
To glycolysis or the Krebs Cycle
How many reduced electron carriers would be produced with 4 turns of the Krebs cycle?
4 FADH2 & 12 NADH
True or False. Beta-oxidation is a process in the catabolism of proteins.
False. Beta-Oxidation is a process in the catabolism of fats.
