WorksheetsChapter 9: Cellular Respiration and Fermentation
Total questions: 24
Worksheet time: 12mins
Name
Class
Date
1.
How do organisms get the energy they need?
a)
by burning food molecules and releasing their energy as heat
b)
by breathing oxygen into their lungs and combining it with carbon dioxide
c)
by breaking down food molecules gradually and capturing their chemical energy
d)
by using the sun's energy to break down food molecules and form chemicals
2.
Which of the following is NOT a stage of cellular respiration?
a)
fermentation
b)
electron transport
c)
glycolysis
d)
Krebs cycle
3.
Which compounds are produced by the two main types of fermentation?
a)
NAD+ or ATP
b)
alcohol or lactic acid
c)
glucose or carbon dioxide
d)
ADP or ATP
4.
Cellular respiration is called an aerobic process because it requires
a)
light
b)
exercise
c)
oxygen
d)
glucose
5.
Cellular respiration benefits organisms by
a)
forming carbon dioxide
b)
breaking down glucose
c)
transferring energy to ATP
d)
consuming oxygen
6.
Photosynthesis is to chloroplasts as cellular respiration is to
a)
chloroplasts
b)
cytoplasm
c)
mitochondria
d)
nuclei
7.
The most important product of the electron transport chain in cellular respiration is
a)
ATP
b)
NADH
c)
ADP
d)
NAD+
8.
The products of photosynthesis are the
a)
products of cellular respiration
b)
reactants of cellular respiration
c)
products of glycolysis
d)
reactanta of fermentation
9.
In glycolysis, each glucose molecule is broken down into
a)
six molecules of carbon dioxide
b)
four molecules of ATP
c)
two molecules of pyruvic acid
d)
two molecules of ATP
10.
Each of the following processes releases energy from glucose EXCEPT
a)
photosynthesis
b)
glycolysis
c)
cellular respiration
d)
fermentation
11.
In cellular respiration, the final electron acceptor is
a)
carbon dioxide
b)
oxygen
c)
water
d)
ATP
12.
In the Krebs cycle,
a)
glucose is broken down into CO2 and H2O
b)
ATP is broken down into ADP and AMP
c)
CO2 is converted into pyruvic acid
d)
pyruvic acid is broken down into CO2 and H2O
13.
The first set of reactions in cellular respiration is
a)
the Calvin cycle
b)
the Krebs cycle
c)
electron transport chain
d)
glycolysis
14.
Glycolysis provides a cell with a net gain of
a)
2 ATP
b)
4 ATP
c)
18 ATP
d)
36 ATP
15.
Glycolysis requires
a)
ATP
b)
oxygen
c)
sunlight
d)
NADP+
16.
The starting molecule for the Krebs cycle is
a)
glucose
b)
NADH
c)
pyruvic acid
d)
coenzyme A
17.
In eukaryotes, electron transport occurs in the
a)
inner mitochondrial membrane
b)
nucleus
c)
cell membrane
d)
cytoplasm
18.
Which of the following pass high-energy electrons to the electron transport chain?
a)
NADH and FADH2
b)
ATP and ADP
c)
citric acid
d)
acetyl-CoA
19.
Cellular respiration uses 1 molecule of glucose to produce approximately______ATP molecules.
a)
2
b)
4
c)
32
d)
36
20.
Lactic acid fermentation occurs in
a)
bread dough
b)
any environment containing oxygen
c)
muscle cells
d)
mitochondria
21.
During both alcoholic and lactic acid fermentation,
a)
NAD+ is regenerated, allowing glycolysis to continue.
b)
glucose is split into 3 pyruvic acid molecules.
c)
oxygen is required.
d)
carbon dioxide is produced.
22.
Breathing heavily after running a race is your body's way of
a)
making more citric acid.
b)
repaying an oxygen debt.
c)
restarting glycolysis.
d)
stopping the electron transport chain.
23.
The energy needed to win a 1-minute footrace is produced mostly by
a)
lactic acid fermentation
b)
cellular respiration
c)
using up store of ATP
d)
breaking down fats
24.
Which of the following statements is true?
a)
Animal cells use cellular respiration and plant cells only use photosynthesis
b)
Animal cells use photosynthesis and cellular respiration and plants just use photosynthesis
c)
Animal cells use cellular respiration, plant cells use both cellular respiration and photosynthesis
d)
Animal and plant cells both use cellular respiration and photosynthesis
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