Download 1. The molecule that is most directly used to power different cell

1. The molecule that is most directly
used to power different cell activities
is
A.
B.
C.
D.
Glucose
Sucrose
ATP
ADP
2. How is an ATP molecule different
from an ADP molecule?
A.The two molecules have a different sugar
B.The two molecules have a different nitrogen
group
C.ADP has 2 phosphate groups, ATP as 3
phosphate groups
D.ATP has 2 phosphate groups, ADP as 3
phosphate groups
ATP stands for adenosine triphosphate. The tri in the name
tells you that it has a 3 phosphate group tail.
The triphosphate tail is an important part of the molecule
because it store energy in this high energy bond.
ADP stands for adenosine diphosphate. This molecule has 2
phosphate groups in its tail.
3. A reaction in which the products have more
energy then the reactants, requiring an input of
energy is called a(n)
A.Exergonic
B.Endergonic
C.Spontaneous
D.Dissociation
An endergonic reaction requires energy. (The prefix
“endo” means into)
•The products have more stored energy than the
reactants
•Example: The production of glucose from carbon
dioxide and water requires energy (from the sun)
4. The reaction that produces an ATP from an
ADP and a phosphate group is a(n)
A. exergonic
B. endergonic
ATP is a high energy molecule, with energy stored in the bond
for the third phosphate group. It takes energy to produce an
ATP from ADP and a phosphate group so this is an endergonic
reaction.
5. The energy required to build an ATP molecule
in the ATP/ADP cycle can come from
A. The building of a sugar molecule
B. The breakdown of a sugar molecule under
anaerobic conditions
C. The breakdown of a sugar molecule under
aerobic conditions
D. A, B and C
E. Both B and C
6. The energy released by the break down of
ATP into ADP and a phosphate group may be
used for
A.Movement (allowing contraction of muscle fibers)
B.Synthesizing (building) macromolecules- such as
proteins
C.Active transport of substances
D.All of the above
E. None of the above
ATP is the energy currency of
the cell. The energy released in
the break down of ATP is used
to power many cellular
activities.
There is a constant cycling in the cell as ATP is produced
from ADP and P with the energy provided from the
breakdown of food. Energy is released for cell activities
as ATP is broken back down into ADP and P
7. The reactants in photosynthesis are
A.carbon dioxide (CO2) & oxygen (O2)
B.carbon dioxide (CO2) & glucose (C6H12O6)
C.carbon dioxide (CO2) & water (H2O)
D.oxygen (O2) & glucose (C6H12O6)
E. water (H2O) & glucose (C6H12O6)
8. The products of photosynthesis are
A.carbon dioxide (CO2) & oxygen (O2)
B.carbon dioxide (CO2) & glucose (C6H12O6)
C. carbon dioxide (CO2) & water(H2O)
D.oxygen (O2) & glucose (C6H12O6)
E. oxygen (O2) & water (H2O)
9. The term aerobic means
A.with oxygen
B.without oxygen
C.with water
D.without water
10. Which of the following is an anaerobic
process (occurs without oxygen)?
A.
B.
C.
D.
E.
F.
Kreb’s Cycle and electrons transport chain
Lactic acid fermentation
Alcohol fermentation
A and B
A and C
B and C
11. Which process occurs in our muscles when we
work out very hard (demanding lots of ATP) and our
circulatory system can not deliver an adequate
amount of oxygen to meet the demands (anaerobic
conditions).?
A.
B.
C.
D.
Kreb’s cycle
Lactic acid fermentation
Alcohol fermentation
Both B and C
12. Name an organism that can
perform alcohol fermentation.
A.
B.
C.
D.
E.
F.
G.
Yeast
Grape plants
Humans
All of the above
A and B
A and C
B and C
13. Glycolysis is the process in which a glucose
molecule is broken down into 2 pyruvate molecules
and the energy released is used to produce 2 ATP
molecules. Glycolysis is the first phase in which of the
following
A. Fermentation (both kinds)
B. Aerobic respiration
C. Both A and B
D. Neither A nor B
14. Flasks A and B both contain a yeast
solution and are under anaerobic
conditions. Flask A also contains glucose,
flask B does not contain glucose. You
would expect the amount of ATP to
A.
B.
C.
D.
Increase in both flasks
Decrease in both flasks
Increase in flask A but not flask B
Increase in flask B but not flask A
Yeast can perform anaerobic fermentation to
produce ATP, but they require a food sourceglucose etc.
15. Flasks C and D both contain yeast, and a
glucose solution. Flask C has no O2 and flask D has
O2. You would expect a decrease in glucose ____
A.
B.
C.
D.
in both flasks
in flask C but not D
in flask D but not C
neither (glucose will
increase in both)
Yeast are an organism that can perform both
aerobic respiration and anaerobic alcohol
fermentation. They will be able to breakdown
the sugar molecules for energy under both
conditions.
16. Flasks E and F both contain yeast,
and a glucose solution. Flask E has no O2
and flask F has O2. You would expect
A.
B.
C.
D.
More ATP production in flask E
More ATP production in flask F
More ATP consumption in flask E
More ATP consumption in flask F
17. The site of aerobic respiration is the
A.ribosome
B.endoplasmic reticulum
C.chloroplast
D.mitochondrion
18. Which of the following are differences between
fermentation and aerobic respiration.
I. aerobic respiration requires oxygen, fermentation does not
II. fermentation requires oxygen, aerobic respiration does not
III. Fermentation produces more ATP
IV. aerobic respiration produces more ATP
A. I only
B. II only
C. I and III
D. I and IV
E II and III
F. II and IV
Glycolysis
No additional ATP
Allows glycolysis to
continue by recycling
NAD+
19. A process requires the energy from 5
ATP in order to be initiated, but produces
12 ATP in the later stages, the net yield of
ATP is
A.
B.
C.
D.
E.
60
17
12
7
5
1. C
2. C
3. B
4. B
5. E
6. D
7. C
8. D
9. A
10.F
11.B
12.A
13.C
14. C
15. A
16. B
17. D
18. D
19. D