WorksheetsCell Respiration S138
Total questions: 40
Worksheet time: 29mins
Name
Class
Date
1.
How many ATP are gained through glycolysis?
a)
0
b)
2
c)
4
d)
30-38
2.
Which molecule enters Kreb's Cycle?
a)
Pyruvate
b)
Glucose
c)
Acetyl CoA
d)
reducing powers
3.
In fermentation
a)
Sugars are produced
b)
Oxygen is used
c)
NAD+ is regenerated
d)
38 ATP are produced
4.
True or False: the inner mitochondrial membrane plays a role in the production of pyruvate
a)
True
b)
False
5.
Which of the following is not an end product of the Kreb's cycle?
a)
FADH2
b)
CO2
c)
pyruvate
d)
ATP
6.
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
7.
True or False: Cellular respiration releases heat
a)
True
b)
False
8.
During chemiosmosis
a)
H+ ions serve as the final electron acceptor
b)
ATP is directly made in glycolysis
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
9.
The overall equation for cellular respiration is:
a)
C6H12O6 + energy -> 6CO2 + 6H2O + energy
b)
CH2O + O2 -> CO2 + 6H2O + energy
c)
C6H12O6 + 6O2 -> 6CO2 + 6H2O + energy
d)
C6H12O6 + 6CO2 -> 6O2 + 6H2O + energy
10.
During cellular respiration the energy in glucose
a)
is carried by electrons
b)
is used to manufacture glucose
c)
becomes stored in molecules of water
d)
is released all at one
11.
The conversion of glucose to two 3-carbon compounds is the result of what process?
a)
the citric acid cycle
b)
glycolysis
c)
the electron transport chain
d)
oxidative phosphorylation
12.
What are the stages of cellular respiration in order?
a)
glycolysis, ETC, the citric acid cycle
b)
ETC, glycolysis, the citric acid cycle
c)
glycolysis, the citric acid cycle, ETC
d)
the citric acid cycle, ETC, glycolysis
13.
Which process produces the most ATP per molecule of glucose?
a)
lactic acid fermentation
b)
aerobic respiration
c)
alcoholic fermentation
d)
all are about the same
14.
What process happens after glycolysis but before the Krebs Cycle?
a)
FADH2 is produced
b)
ATP is generated through chemiosmosis
c)
glucose is split and produces two molecules of pyruvate
d)
pyruvate is turned into Acetyl CoA
15.
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
16.
oxidation is______ and reduction is________
a)
loss of electrons, gain of electrons
b)
gain of electrons, loss of electrons
c)
gain of oxygen, loss of oxygen
d)
gain of protons, loss of protons
17.
What does NADH do during cellular respiration?
a)
it delivers its electron load to the first electron carrier molecule
b)
it is reduced to form NAD+
c)
it is chemically converted into ATP
d)
it acts as the final electron acceptor
18.
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
19.
Which molecules are made during the Krebs Cycle to power the electron transport chain?
a)
ATP and CO2
b)
ATP and NADH
c)
NADH and FADH2
d)
ADP, NAD+ and FAD+
20.
What determines the fate of pyruvate?
a)
carbon dioxide
b)
oxygen
c)
ATP
d)
water
21.
The final electron acceptor of aerobic respiration is
a)
oxygen
b)
water
c)
carbon dioxide
d)
NAD+
22.
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
23.
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.
24.
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
25.
Where does glycolysis occur?
a)
Inner mitochondrial membrane
b)
Mitochondrial Matrix
c)
Cytoplasm
d)
At a ribosome
26.
What enzyme in the ETC is responsible for generating the ATP molecules?
a)
ATPase
b)
ATP synthase
c)
Hexokinase
d)
none of the above
27.
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
28.
Each NADH molecule carrying hydrogen to the ETC can produce a maximum of _ molecules of ATP?
a)
1
b)
2
c)
3
d)
4
29.
Which gas is a product released during photosynthesis that humans need for survival?
a)
Carbon dioxide
b)
neon
c)
nitrogen
d)
oxygen
30.
What molecule is produced when oxygen is reduced by the electrons in the electron transport chain?
a)
Hydrogen
b)
NADH
c)
FADH2
d)
Water
31.
Which of the following provides evidence that glycolysis is one of the first metabolic pathways to have evolved?
a)
It relies on fermentation, which is characteristic of archaea and bacteria.
b)
It is found only in prokaryotes, whereas eukaryotes use mitochondria to produce ATP.
c)
It produces ATP only by ixidative phosphorylation and does not involve redox.
d)
It is nearly universal, occurs in the cytosol, and does not involve O2.
32.
Which of the following is mismatched with its location?
a)
glycolysis - cytosol
b)
ETC - inner mitochondrial membrane
c)
Citric Acid Cycle - Cytosol
d)
Citric Acid Cycle - Mitochondrial Matrix
33.
Which of the following is incorrect about the process of fermentation?
a)
does not require oxygen
b)
has carbon dioxide as an end product
c)
produces 36 ATP as an end product
d)
produces lactic acid or ethanol as an end product
34.
ATP hydrolysis is _________.
a)
Exergonic
b)
Endergonic
c)
Anabolic
d)
A condensation reaction
35.
Where does ETC occur?
a)
Mitochondrial matrix
b)
Outer mitochondrial membrane
c)
Inner mitochondrial membrane
d)
Cytosol
36.
The Kreb's cycle and ETC of cellular respiration occur in the _____ in eukaryotic cells.
a)
nucleus
b)
cytoplasm
c)
ribosomes
d)
mitochondria
37.
Glycolysis of cellular respiration occur in the _____ in prokaryotic cells.
a)
nucleus
b)
cytoplasm
c)
ribosomes
d)
mitochondria
38.
Glycolysis
a)
does not need oxygen
b)
does need oxygen
39.
Which type of respiration is most efficient?
a)
Aerobic
b)
Anaerobic
40.
What is the purpose of fermentation?
a)
Produce ATP
b)
Produce pyruvic acid
c)
Regenerate NAD+ for glycolysis to continue
d)
Regenerate ADP for glycolysis to continue
100 %
