Fermentation and Cell Respiration Applications (Mid 3)

Question 1

Given that fermentation only uses glycolysis, where does it occur in human/eukaryotic cells?

a
Cytosol

b
Mitochondrial matrix

c
Mitochondrial intermembrane space

d
Inner membrane of mitochondria

e
Outer membrane of mitochondria

Answer 1

a
Cytosol

Question 2

The ATP made during fermentation is generated by:

a
aerobic respiration

b
substrate-level phosphorylation

c
oxidative phosphorylation

d
electron transport chain

e
All but one of the above

Answer 2

b
substrate-level phosphorylation

Question 3

which of the following is true, comparing lactic acid fermentation, alcoholic fermentation, and aerobic respiration:
a
Human cells usually use aerobic respiration when there is plenty of oxygen. They use lactic acid fermentation when there is not very much oxygen available

b
Yeast can use either aerobic respiration or alcoholic fermentation, depending on oxygen availability

c
Aerobic respiration produces significantly more ATP per glucose than either form of fermentation does

d
Pyruvate accepts an e- from NADH in lactic acid fermentation, regenerating the NADH to NAD+

Answer 3

a
Human cells usually use aerobic respiration when there is plenty of oxygen. They use lactic acid fermentation when there is not very much oxygen available

b
Yeast can use either aerobic respiration or alcoholic fermentation, depending on oxygen availability

c
Aerobic respiration produces significantly more ATP per glucose than either form of fermentation does

d
Pyruvate accepts an e- from NADH in lactic acid fermentation, regenerating the NADH to NAD+

Question 4

One of the most common fatty acids in your body is linoleic acid, which is 18 carbons long. Assuming all carbons are used (which they are), how many molecules of acetyl CoA could you make with one molecule of linoleic acid?

a
1

b
2

c
4

d
5

e
9

f
18

Answer 4

e
9

Question 5

Which of the following are true comparing catabolic and anabolic pathways:

a
catabolic pathways build molecules whereas anabolic pathways break them down

b
lipids, proteins, and various carbohydrates can all be broken down and used in cellular respiration, though most of them do not go through all of the same steps that glucose does

c
nucleotides can be made from intermediates of cellular respiration, despite not being used as an energy source for cellular respiration

d
A, B, and C are all false

e
A, B, and C are all true

Answer 5

b
lipids, proteins, and various carbohydrates can all be broken down and used in cellular respiration, though most of them do not go through all of the same steps that glucose does

c
nucleotides can be made from intermediates of cellular respiration, despite not being used as an energy source for cellular respiration