Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Which of the following is NOT a stage of cellular respiration?
a. | fermentation | c. | glycolysis | b. | electron transport | d. | Krebs cycle |
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2.
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Which of the following is the correct sequence of events in cellular
respiration?
a. | glycolysis ® fermentation ® Krebs cycle | b. | Krebs cycle ®
electron transport ® glycolysis | c. | glycolysis ® Krebs cycle ® electron
transport | d. | Krebs cycle ® glycolysis ® electron transport |
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3.
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Which of the following is released during cellular respiration?
a. | oxygen | c. | energy | b. | air | d. | lactic acid |
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4.
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Cellular respiration uses one molecule of glucose to produce
a. | 2 ATP molecules. | c. | 36 ATP molecules. | b. | 34 ATP molecules. | d. | 38 ATP
molecules. |
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5.
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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 |
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6.
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Cellular respiration releases energy by breaking down
a. | food molecules. | c. | carbon dioxide. | b. | ATP. | d. | water. |
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7.
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What are the reactants in the equation for cellular respiration?
a. | oxygen and lactic acid | c. | glucose and oxygen | b. | carbon dioxide and water | d. | water and
glucose |
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8.
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Which of these is a product of cellular respiration?
a. | oxygen | c. | glucose | b. | water | d. | all of the
above |
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9.
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Which of these processes takes place in the cytoplasm of a cell?
a. | glycolysis | c. | Krebs cycle | b. | electron transport | d. | all of the
above |
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10.
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Glycolysis provides a cell with a net gain of
a. | 2 ATP molecules. | c. | 18 ATP molecules. | b. | 4 ATP molecules. | d. | 36 ATP
molecules. |
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11.
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The starting molecule for glycolysis is
a. | ADP. | c. | citric acid. | b. | pyruvic acid. | d. | glucose. |
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12.
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Glycolysis requires
a. | an energy input. | b. | oxygen. | c. | hours to produce
many ATP molecules. | d. | NADP+. |
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13.
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Which of the following is NOT a product of glycolysis?
a. | NADH | c. | ATP | b. | pyruvic acid | d. | glucose |
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14.
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Which of the following acts as an electron carrier in cellular
respiration?
a. | NAD+ | c. | ADP | b. | pyruvic acid | d. | ATP |
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15.
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Lactic acid fermentation occurs in
a. | bread dough. | c. | muscle cells. | b. | any environment containing
oxygen. | d. | mitochondria. |
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16.
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The two main types of fermentation are called
a. | alcoholic and aerobic. | c. | alcoholic and lactic acid. | b. | aerobic and
anaerobic. | d. | lactic acid and
anaerobic. |
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17.
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One cause of muscle soreness is
a. | alcoholic fermentation. | c. | lactic acid
fermentation. | b. | glycolysis. | d. | the Krebs cycle. |
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18.
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The air bubbles and spongy texture of bread are due to which process?
a. | lactic acid fermentation | c. | alcoholic
fermentation | b. | glycolysis | d. | the Krebs cycle |
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19.
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Milk is converted to yogurt under certain conditions when the microorganisms in
the milk produce acid. Which of these processes would you expect to be key in the production of
yogurt?
a. | the Krebs cycle | c. | alcoholic fermentation | b. | photosynthesis | d. | lactic acid fermentation |
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20.
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During lactic acid fermentation,
a. | NAD+ is regenerated, allowing glycolysis to continue. | b. | glucose is split
into three pyruvic acid molecules. | c. | oxygen is required. | d. | 3 ATP molecules are
produced. |
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21.
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The conversion of pyruvic acid into lactic acid requires
a. | alcohol. | c. | ATP. | b. | oxygen. | d. | NADH. |
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22.
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In the presence of oxygen, glycolysis is followed by
a. | lactic acid fermentation. | c. | photosynthesis. | b. | alcoholic
fermentation. | d. | the Krebs
cycle. |
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23.
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Cellular respiration is called an aerobic process because it requires
a. | light. | c. | oxygen. | b. | exercise. | d. | glucose. |
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24.
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Which organism is NOT likely to carry out cellular respiration?
a. | tree | c. | anaerobic bacterium | b. | mushroom | d. | tiger |
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25.
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The starting molecule for the Krebs cycle is
a. | glucose. | c. | pyruvic acid. | b. | NADH. | d. | coenzyme A. |
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26.
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The Krebs cycle does not occur if
a. | oxygen is present. | c. | glycolysis occurs. | b. | fermentation occurs. | d. | carbon dioxide is
present. |
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27.
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The Krebs cycle produces
a. | oxygen. | c. | electron carriers. | b. | lactic acid. | d. | glucose. |
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28.
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The Krebs cycle starts with
a. | lactic acid and yields carbon dioxide. | b. | glucose and yields 32 ATPs. | c. | pyruvic acid and
yields lactic acid or alcohol. | d. | pyruvic acid and yields carbon
dioxide. |
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29.
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The electron transport chain can be found in
a. | prokaryotes. | c. | plants. | b. | animals. | d. | all of the
above |
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30.
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In eukaryotes, electron transport occurs in the
a. | mitochondria. | c. | cell membrane. | b. | chloroplasts. | d. | cytoplasm. |
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31.
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Which of the following passes high-energy electrons into the electron transport
chain?
a. | NADH and FADH2 | c. | citric acid | b. | ATP and
ADP | d. | acetyl –
CoA |
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32.
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Each pair of high-energy electrons that moves down the electron transport chain
provides enough energy to
a. | transport water molecules across the membrane. | b. | convert 3 ADP
molecules into 3 ATP molecules. | c. | convert carbon dioxide into water
molecules. | d. | break glucose into pyruvic acid. |
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33.
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The energy of the electrons passing along the electron transport chain is used
to make
a. | lactic acid. | c. | alcohol. | b. | citric acid. | d. | ATP. |
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34.
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Breathing heavily after running a race is your body’s way of
a. | making more citric acid. | c. | restarting
glycolysis. | b. | repaying an oxygen debt. | d. | recharging the electron transport chain. |
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35.
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When the body needs to exercise for longer than 90 seconds, it generates ATP by
carrying out
a. | lactic acid fermentation. | c. | cellular
respiration. | b. | alcoholic fermentation. | d. | glycolysis. |
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36.
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The energy needed to win a 2-minute footrace is produced mostly by
a. | lactic acid fermentation. | c. | using up stores of
ATP. | b. | cellular respiration. | d. | breaking down fats. |
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37.
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Which process does NOT release energy from glucose?
a. | glycolysis | c. | fermentation | b. | photosynthesis | d. | cellular
respiration |
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38.
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How are cellular respiration and photosynthesis almost opposite
processes?
a. | Photosynthesis releases energy, and cellular respiration stores
energy. | b. | Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration
puts it back. | c. | Photosynthesis removes oxygen from the atmosphere, and cellular respiration puts it
back. | d. | all of the above |
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39.
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Plants cannot release energy from glucose using
a. | glycolysis. | c. | the Krebs cycle. | b. | photosynthesis. | d. | cellular
respiration. |
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40.
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The products of photosynthesis are the
a. | products of cellular respiration. | c. | products of
glycolysis. | b. | reactants of cellular respiration. | d. | reactants of
fermentation. |
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