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WorksheetsAP Biology Cellular Respiration
Total questions: 31
Worksheet time: 31mins
Name
Class
Date
1.
How is cellular respiration related to photosynthesis?
a)
Both require oxygen to start
b)
respiration is the opposite of photosynthesis
c)
Both start with glycolysis
d)
Both end with 38 ATP for cells
2.
Which of the following statements are false?
a)
Glycolysis can occur with or without oxygen
b)
Glycolysis is the first step in both anaerobic and aerobic respiration
c)
Glycolysis occurs in the mitochondria
d)
Glycolysis produces 2 ATP, 2 Pyruvates, and 2 NADH
3.
What are the products (things that are made) in cellular respiration
a)
ATP
b)
Carbon dioxide (CO2)
c)
Water
d)
All of the above
4.
Glucose is broken down into pyruvate in a process known as
a)
glycolysis
b)
electron transport
c)
the Krebs cycle
d)
phosphorylation
5.
This term refers to the production of ATP without oxygen being present.
a)
anaerobic
b)
prokaryotic
c)
biogenic
d)
organic
6.
What is the correct equation for cellular respiration?
a)
6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
b)
6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
c)
6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
d)
6CO2 + 6H2O + Energy -> 6O2 + C6H12O6
7.
What is cellular respiration?
a)
the breakdown of glucose to release ATP
b)
the breakdown of glucose to release NADH
c)
the breakdown of glucose to release FADH
d)
the breakdown of glucose to release carbon
8.
Which of these molecules is released during the Kreb's cycle
a)
nitrogen
b)
oxygen
c)
hydrogen sulfide
d)
Carbon Dioxide (CO2)
9.
What is the main job of the electron carriers in cellular respiration?
a)
Transport electrons and hydrogen atoms to the electron transport chain
b)
Capture energy throughout the process of cellular respiration
c)
Provide the reactants for the process of cellular respiration
d)
Pump positive hydrogen ions and shuttle electrons across the electron transport chain and contribute to chemiosmosis
10.
Glycolysis is a _______ process
a)
Anabolic
b)
Catabolic
c)
Single Step
d)
Strictly Eukaryotic
11.
NADH is a ______ form of NAD+.
a)
Reduced
b)
Oxidized
c)
Catabolized
d)
Hydrolized
12.
How many ATP are gained through glycolysis?
a)
0
b)
2
c)
4
d)
30-38
13.
Cellular respiration involves the net _______ of glucose.
a)
Reduction
b)
Oxidation
c)
ATP
d)
REDOX
14.
Which molecule enters Kreb's Cycle?
a)
Pyruvate
b)
Glucose
c)
Acetyl CoA
d)
reducing powers
15.
What enzyme in the ETC is responsible for generating the ATP molecules?
a)
ATPase
b)
ATP synthase
c)
Hexokinase
d)
none of the above
16.
Where does ETC occur?
a)
Mitochondrial matrix
b)
Outer mitochondrial membrane
c)
Inner mitochondrial membrane
d)
Cytosol
17.
after strenuous exercise, a muscle cell would contain decreased amounts of ______ and increased amounts of ______ ____
a)
glucose; ATP
b)
ATP; glucose
c)
oxygen; lactic acid
d)
lactic acid; ATP
18.
site of the krebs cycle
a)
1
b)
2
c)
3
d)
4
19.
Which process takes place in the presence of oxygen and produces nearly 20 times as much as ATP as glycolysis alone?
a)
photosynthesis
b)
lactic acid fermentation
c)
aerobic respiration
d)
alcoholic fermentation
20.
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?
a)
Only species Y is aerobic.
b)
Only species Y is anaerobic
c)
Both species X and Y are aerobic.
d)
Both species X and Y are anaerobic.
21.
A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event?
a)
As the cells run out of oxygen they switch to anaerobic respiration (fermentation), which allows the cell to make small amounts of ATP in the absence of oxygen.
b)
As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells.
c)
The cells will never run out of oxygen if the weightlifter is breathing.
d)
As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen is not required to make ATP.
22.
What are the reactants in the equation for cellular respiration?
a)
oxygen and lactic acid
b)
carbon dioxide and water
c)
glucose and oxygen
d)
water and glucose
23.
What process is found in both aerobic and anaerobic metabolism?
a)
the Kreb's cycle
b)
oxidative phosphorylation
c)
the citric acid cycle
d)
glycolysis
24.
At the end of the Kreb's cycle, where is most of the energy from the original glucose stored?
a)
in CO2
b)
in ATP
c)
in NADH
d)
in pyruvate
25.
During chemiosmosis
a)
H+ ions serve as the final electron acceptor
b)
a concentration gradient is generated when H+ ions are passively transported from the matrix to the intermembrane space of the mitochondrion
c)
energy is released as H+ ions move freely across the mitochondrial membrane
d)
ATP is synthesized when H+ ions move through a channel in ATP synthase
26.
What are the stages of cellular respiration in order?
a)
glycolysis, oxidative phosphorylation, the citric acid cycle
b)
oxidative phosphorylation, glycolysis, the citric acid cycle
c)
glycolysis, the citric acid cycle, oxidative phosphorylation
d)
the citric acid cycle, oxidative phosphorylation, glycolysis
27.
In yeast cells
a)
alcohol is produced during the citric acid cycle
b)
lactic acid is produced during the citric acid cycle
c)
alcohol is produced after glycolysis
d)
lactic acid is produced after glycolysis
28.
What is the main purpose of the Krebs cycle?
a)
to produce ATP
b)
to produce electron donators
c)
to produce water
d)
to produce carbon dioxide
29.
The final electron acceptor of aerobic respiration is
a)
oxygen
b)
water
c)
carbon dioxide
d)
NAD+
30.
The main purpose of anaerobic respiration is to
a)
produce oxygen
b)
replenish NAD+ for glycolysis
c)
replenish oxaloacetic acid for the Krebs cycle
d)
produce ATP
31.
Use the diagram to answer the question. Between which parts of the molecule must the bonds be broken to form an ADP molecule?
a)
A and B
b)
A and C
c)
B and C
d)
C and D
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