Download File - Ms. Daley Science

logy H
IF
ObjeL
2012-2013
Explain the process c-_7cclu1ar res7h-E-4-'on L bact.-zia 5
: Explain tne role or eac!
toilowing in cellular resmrauon vocaouiary list re
a. Glucose
b. Pyruvic acid (pyruva e
c. NAD-F, NADH
d. FAD, FADH2
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e. Hydrogen ions
f.Acetyl Co-A
g. Carbon dioxide
. Water
i. Oxygen gas
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j. Electron transport chain
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More review: A Comparison of Aerobic and Anaerol-.1c Celluaar nespi-fation
LACTIC ACED
AEROBIC CELLULAR
FERMENTATION
RESPI TION
(ANAEROBIC)
What kind of organism completes this
process?
Is oxygen used?
Are mitochondria necessary?
no
1..
Exergonic or Endergonic (net)?
Glucose formed or used?
Besides ATP, what molecules are formed
(net)?
Is there an Electron Transport Chain?
1-low many ATP molecules are formed
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11
Daley Biology H
2O12Objective 19: Explain how photosynthesis and cellular respiration can be seen as two halves of one reaction (a
cycle).
A Comparison of Photosynthesis and Aerobic Cellular Respiration
AEROBIC CELLULAR
RESPIRATION
PHOTOSYNTHESIS
Cellular Location
S
C
What kind of organisms do this?
Is light necessary?
Balanced arid most accurate equation
(include enzymes, etc)
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Exergonic or Endergonic (net)
Picture of associated energy graph
(show both with and without enzymes
present)
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_
Glucose formed or used?
Oxygen molecules formed or used?
ar on dioxide molecules formed or
used?
Water formed or used (net)?
In the Electron Transport Chain
where are the H+ ions from?
In the ETC, w-Eat-Ecatiore e H+
'ons pumped towards?
In the ETC, where are the electrons
from?
What is thel—
aif-electron acceptor in theETC?
t riti-aE@e is
Other than Arg-IVEYT
formed as a result of the ETC?
net production of ATP? It
Is there
so, how many molecules ofATP?
What are the names of the stages or
parts?
What role does membrane surface area
play?
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12
Daley Biology H
2012,
Cellular Respiration Practice Questions
1) Which of the following best describes the flow of energy in cells?
a) ADP to ATP to cell work
bl Food directly to cell work
'ood to ATP to cell work
c) ATP to food
2
Which statement best describes the role of mitochondria in cell respiration?
a Cell respiration occurs outside the mitochondria.
`.)xygen is not consumed m mitochondria.
Lerobic respiration takes place in mitochondria.
little ATP is formed in mitochondna.
3) What is the carrier of glucose to our cells?
)loodstream
a) liver
d.) insulin
b) adrenaline
4) Which kind of metabolic poison would most directly interfere with the process of glycolysis?
a) An agent that reacts with oxygen and depletes its concentration in the cell
b) An agent that binds to pyruvate and inactivates it
An agent that closely mimics the structure of glucose but is not broken down
d) An agent that reacts with NADH and oxidizes it to NAD+
e) An agent that blocks the passage of electrons along the electron transport chain
Some water, a small amount of soil, a few aquatic plants, and a fish were placed in a large bottle. The bottle
was sealed to prevent the exchange of gases and other materials between its contents and the outside. The
bottle was then placed in a window to receive light during the day. After a week, both the plants and the fish
appeared healthy.
5) Refer to the information above. Do the plants use carbon dioxide?
a) No, carbon dioxide is solely a waste product of animal respiration.
b) No, plants release carbon dioxide during photosynthesis.
c) Yes, all organisms use carbon dioxide during cell respiration.
Yes, carbon dioxide is used during photosynthesis.
6) Refer to the information above. Do the plants use oxygen?
a) No, plants produce but do not use oxygen.
b) Yes, plants use oxygen in photosynthesis.
Yes, plants use oxygen at all times in cell respiration.
d) Yes, but only at night after photosynthesis has stopped.
0
7) Refer to the information above. Does the fish use oxygen?
) Yes, oxygen is used 24 hours a day in cell respiration.
b Yes, but only at night after photosynthesis has stopped.
c) Yes, but only in the daytime while photosynthesis is occurring.
d) No, the animal lives by carrying on fermentation.
14
iology H
2012-2013
Refer to the information above. Do the plants produce carbon dioxide?
a) Yes, but only at night when the plants can no longer early on photosynthesis.
42) Yes, carbon dioxide is produced all the time as a result of cell respiration.
c) No, carbon dioxide is a waste product of animals only.
d) No, plants take in only the waste products exhaled by animals.
9) A young relative of yours has never had much energy. He goes to a doctor for help and is sent to the hospital
for some tests. There they discover his mitochondria can use only fatty acids and amino acids for
respiration, and his cells produce more lactic acid than normal. Of the following, which is the best
explanation of his condition?
(a)) His mitochondria lack the transport protein that moves pyruvate across the outer mitochondrial
membrane.
b) His cells cannot move NADH from glycolysis into the mitochondria.
c) His cells contain something that inhibits oxygen use in his mitochondria.
d) His cells lack the enzyme in glycolysis that forms pyruvate.
10)During aerobic respiration, electrons travel downhill in which sequence?
a) food -4 citric acid cycle -+ ATP -4 NAD+
(b)) food —> NADH -4 electron transport chain -4 oxygen
c) glucose —* pyruvate -4 ATP -4 oxygen
d) glucose -4 ATP -4 electron transport chain -4- NADH
e) food glycolysis -4 citric acid cycle —* NADH -4 ATP
_1) Assume a mitochondrion contains 58 NADH and 19 FADH2. If all of the 77 electron carriers were used,
approximately how many ATP molecules could be generated in the ETC?
a) 36
b) 77
c) 173
212
e) 1102
12) If you were able to stop the process of cellular respiration after completing electron transport but prior to the
production of ATP, you would fmd the pH of a mitochondrion to be at its lowest
a) In the cytoplasm.
b) On the outer membrane.
In the intermembrane space.
d) In the mitochondrial matrix.
e) On the inner membrane.
13) A child is born with a rare disease in which mitochondria are missing from skeletal muscle cells. However,
the muscles still function. Physicians find that
a) The muscles contain large amounts of carbon dioxide following even mild physical exercise.
b) The muscles require extremely high levels of oxygen to function.
c) The muscles require extremely high levels of carbon dioxide to function.
d) The muscle cells cannot split glucose to pyruvate.
cr) The muscles contain large amounts of lactic acid following even mild physical exercise.
15
Daley Biology H
2012-201.,
14) The Krebs cycle uses acetyl-CoA as a starting compound. How many molecules of carbon dioxide are
produced in 100 turns of the Krebs cycle (assume ONE acetyl-CoA molecule is added per turn of the Krebs
cycle)?
a) 100
(,12,) 200
c) 300
d) 400
e) 1000
15) The primary function of the mitochondrion is the production of ATP To carry out this function, the
mitochondrion must have all of the following EXCEPT:
a) the membrane-bound electron transport chain
b) proton pumps embedded in the inner membrane
r0 enzymes for glycolysis
d) enzymes for the Krebs cycle
e) ATP synthase embedded in the inner membrane
16) Mitochondrial Uncoupling allows a cell to
a) make more ATP
13) waste energy in the form of heat
c) harness energy in the form of heat
d) use ATP more efficiently
17) A mitochondrial uncoupler
a) keeps H+ ions in the inter membrane space
b) keeps H+ ions in the mitochondrial matrix space
c) lets H+ ions in to the inter membrane space
(5 lets II+ ions in to the mitochondrial matrix space
18) Leptin is released by:
fat cells
i) neuron cells
c) stomach cells
d) muscle cells
e) blood cells
19) Leptin functions to:
a) Tell the fat cells to break down fats for use
b) Tell the brain the stomach is empty, so eat
c) Tell the fat cells to make lipids to store
Tell the brain the stomach is full, so stop eating
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