Lecture 25 Fermentation

Question 1

Does fermentation require oxygen?

Answer 1

No

Question 1

Can fermentation happen in the presence of oxygen?

Answer 1

Yes

Question 2

Does fermentation use the Krebs cycle or ETC?

Answer 2

No

Question 3

In fermentation, what is used as the final electron acceptor?

Answer 3

pyruvate (or a derivative)

Question 4

Femernation

Answer 4

a mechanism for regeneration NAD+ from NADH

Question 5

Why does fermentation produce less ATP than cellular respiration?

Answer 5

few energy rich-bonds are broken

Question 6

What are the two types of fermentation?

Answer 6

lactic acid fermentation and alcohol fermentation

Question 7

What does alcohol fermentation produce?

Answer 7

produces ethanol + CO2

Question 8

What does lactic acid fermentation produce?

Answer 8

lactic acid

Question 9

Homolactic fermentation

Answer 9

produces lactic acid only

Question 10

Heterolactic fermentation

Answer 10

produces lactic acid and other compounds

Question 11

What happens during ethanol fermentation to produce the ethanol?

Answer 11

pyruvate gets decarbozylated

Question 12

Three components to beer production

Answer 12

malted barley, yeast (Saccharomyces), hops (antimicrobial, adds bitterness)