Question 2
NADH is made during –
a.
b.
c.
d.
Glycolysis
Pyruvate oxidation
Krebs cycle
All of the above
Question 3
Most of the ATP made by aerobic respiration is
made during –
a.
b.
c.
d.
e.
Glycolysis
Electron transport chain
Pyruvate oxidation
Krebs cycle
Substrate-level phosphorylation
Question 4
Glycolysis costs ____ATPs, but makes
___ATPs; thus it has a net yield of ___ATPs.
a.
b.
c.
d.
e.
3, 6, 3
2, 4, 2
2, 2, 0
0, 2, 2
4, 8, 4
Question 5
The 2 carbons in acetyl–CoA are eventually
used to form —
a.
b.
c.
d.
e.
Glucose
ATP
Pyruvate
Oxaloacetate
Carbon dioxide
Question 6
All of the glycolysis reactions do not require
oxygen and can take place in an anaerobic
environment.
a. This is true
b. This is false
Question 7
What is the function of the coenzymes, NADH
and FADH2 ?
a. Charging electrons to power ATP synthase
b. Catalyzing the formation of acetyl-CoA
c. Providing electrons and H+ to the electron
transport chain
d. Transporting CO2 into the mitochondria
e. Acting as a terminal electron acceptor
Question 10
Lactic acid fermentation is an anaerobic
process?
a. This is true
b. This is false
Question 11
The theoretical ATP yield is 38 for
prokaryotes and 36 for eukaryotes. Why is
there a difference?
a. 2 ATPs are used during glycolysis for
prokaryotes but not eukaryotes
b. The Krebs cycle only occurs in eukaryotes
c. No FADH2 is produced in prokaryotic
respiration
d. NADH made during glycolysis must be
transported into the mitochondria of
eukaryotes.
Question 12
An experimental drug blocks the decarboxylation
reactions that convert pyruvate into acetyl-CoA.
A cell treated with this drug would not be able to
complete glycolysis.
a. This is true
b. This is false
Question 13
When making wine, grape juice and yeast are
sealed into a container. Why must the container
be air tight?
a. To prevent the buildup of lactic acid
b. Fermentation only occurs in the absence of
oxygen
c. Yeast cannot live in aerobic environments
d. To prevent the yeasts from dying
e. To increase the production of acetyl-CoA
Question 14
A cheeseburger contains bread, meat and
cheese. Which portion of this meal produces
the most ATP per unit of mass?
a.
b.
c.
d.
Bread
Meat
Cheese
All are equal
Question 15
Which of the following is classified as an
autotroph?
a.
b.
c.
d.
e.
Tubercolosis bacterium
Coral
Asparagus
Labrador retriever
None of the above
Question 16
What happens to the electron’s energy as it
moves through the electron transport chain?
a. The electrons gain energy through each
transfer
b. The electrons lose energy through each
transfer
c. The energy content is unchanged
d. The energy drops to a different orbital
Question 17
During a heart attack blood flow to the
cardiac muscle is restricted. How would this
affect cellular respiration?
a.
b.
c.
d.
ATP production would be increased
ATP production would remain unchanged
ATP production would be decreased
The cell would switch to alcohol fermentation