Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Organisms, such as plants, that make their own food are called a. | autotrophs. | b. | heterotrophs. | c. | thylakoids. | d. | pigments. | | |
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2.
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Organisms that cannot make their own food and must obtain energy from the foods they
eat are called a. | autotrophs. | b. | heterotrophs. | c. | thylakoids. | d. | plants. | | |
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3.
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What
are the three parts of an ATP molecule? a. | adenine, thylakoids, stroma | b. | stroma, grana,
chlorophyll | c. | adenine, ribose, phosphate | d. | NADH, NADPH, and
FADH2 | | |
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4.
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Which
of the following is NOT a part of an ATP molecule? a. | adenine | b. | ribose | c. | chlorophyll | d. | phosphate | | |
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5.
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Energy is released from ATP when a. | a phosphate group is added. | b. | adenine bonds to
ribose. | c. | ATP is exposed to sunlight. | d. | a phosphate
group is removed. | | |
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Figure
8-1
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6.
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Look
at Figure 8-1. All of the following are parts of an ADP molecule EXCEPT a. | structure
A. | b. | structure
B. | c. | structure
C. | d. | structure
D. | | |
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7.
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A
student is collecting the gas given off from a plant in bright sunlight at a temperature of
27°C. The gas being collected is probably a. | oxygen. | b. | carbon
dioxide. | c. | ATP. | d. | vaporized water. | | |
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8.
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Photosynthesis uses sunlight to convert water and carbon dioxide into a. | oxygen. | b. | high-energy sugars. | c. | ATP and
oxygen. | d. | oxygen and high-energy sugars. | | |
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9.
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Which
of the following are used in the overall reactions for photosynthesis? a. | carbon
dioxide | b. | water | c. | light | d. | all of the above | | |
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10.
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Plants gather the sun’s energy with light-absorbing molecules
called a. | pigments. | b. | thylakoids. | c. | chloroplasts. | d. | glucose. | | |
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11.
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Plants take in the sun’s energy by absorbing a. | high-energy
sugars. | b. | chlorophyll a. | c. | chlorophyll
b. | d. | sunlight. | | |
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12.
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A
granum is a a. | stack of
chloroplasts. | b. | stack of thylakoids. | c. | membrane
enclosing a thylakoid. | d. | photosynthetic pigment molecule. | | |
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13.
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The
stroma is the space that surrounds a. | thylakoids. | b. | chloroplasts. | c. | plant cells. | d. | all of the
above | | |
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14.
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Where
do the light-dependent reactions take place? a. | in the stroma | b. | outside the
chloroplasts | c. | in the thylakoid membranes | d. | only in
chlorophyll molecules | | |
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15.
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What
are the products of the light-dependent reactions? a. | oxygen
gas | b. | ATP | c. | NADPH | d. | all of the
above | | |
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16.
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Which
step is the beginning of photosynthesis? a. | Pigments in photosystem I absorb
light. | b. | Pigments in photosystem II absorb
light. | c. | High-energy electrons move through the electron transport
chain. | d. | ATP synthase allows H+ ions to pass through the
thylakoid membrane. | | |
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17.
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Which
pathway represents the flow of electrons during photosynthesis? a. | H2O
® Photosystem I
® Photosystem
II | b. | O2
® ADP
® Calvin
cycle | c. | Photosystem I ® Calvin cycle ® NADPH | d. | H2O
® NADPH
® Calvin
cycle | | |
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18.
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The
Calvin cycle is another name for a. | light-independent reactions. | b. | light-dependent
reactions. | c. | photosynthesis. | d. | all of the
above | | |
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19.
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How
does the Calvin cycle differ from the light-dependent reactions? a. | It takes place
in the stroma. | b. | It takes place in chloroplasts. | c. | It requires
light. | d. | It takes place in the thylakoid. | | |
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20.
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Which
of the following affects the rate of photosynthesis? a. | water | b. | temperature | c. | light
intensity | d. | all of the above | | |
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21.
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Which
of the following is NOT a stage of cellular respiration? a. | fermentation | b. | electron transport | c. | glycolysis | d. | Krebs cycle | | |
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22.
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Which
of the following is released during cellular respiration? a. | oxygen | b. | air | c. | energy | d. | lactic
acid | | |
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23.
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Cellular respiration uses one molecule of glucose to produce a. | 2 ATP
molecules. | b. | 34 ATP molecules. | c. | 36 ATP
molecules. | d. | 38 ATP molecules. | | |
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24.
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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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25.
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Cellular respiration releases energy by breaking down a. | food
molecules. | b. | ATP. | c. | carbon dioxide. | d. | water. | | |
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26.
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Which
of these is a product of cellular respiration? a. | oxygen | b. | water | c. | glucose | d. | all of the
above | | |
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27.
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Which
of these processes takes place in the cytoplasm of a cell? a. | glycolysis | b. | electron transport | c. | Krebs
cycle | d. | all of the above | | |
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28.
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The
starting molecule for glycolysis is a. | ADP. | b. | pyruvic acid. | c. | citric
acid. | d. | glucose. | | |
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29.
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Which
of the following is NOT a product of glycolysis? a. | NADH | b. | pyruvic acid | c. | ATP | d. | glucose | | |
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30.
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The
two main types of fermentation are called a. | alcoholic and aerobic. | b. | aerobic and
anaerobic. | c. | alcoholic and lactic acid. | d. | lactic acid and
anaerobic. | | |
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31.
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One
cause of muscle soreness is a. | alcoholic fermentation. | b. | glycolysis. | c. | lactic acid fermentation. | d. | the Krebs
cycle. | | |
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32.
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Which
process is used to produce beer and wine? a. | lactic acid fermentation | b. | glycolysis | c. | alcoholic fermentation | d. | the Krebs
cycle | | |
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33.
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The
conversion of pyruvic acid into lactic acid requires a. | alcohol. | b. | oxygen. | c. | ATP. | d. | NADH. | | |
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34.
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Cellular respiration is called an aerobic process because it requires a. | light. | b. | exercise. | c. | oxygen. | d. | glucose. | | |
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35.
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The
starting molecule for the Krebs cycle is a. | glucose. | b. | NADH. | c. | pyruvic acid. | d. | coenzyme
A. | | |
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36.
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The
Krebs cycle does not occur if a. | oxygen is present. | b. | fermentation
occurs. | c. | glycolysis occurs. | d. | carbon dioxide
is present. | | |
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37.
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In
eukaryotes, electron transport occurs in the a. | mitochondria. | b. | chloroplasts. | c. | cell membrane. | d. | cytoplasm. | | |
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38.
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The
energy of the electrons passing along the electron transport chain is used to make a. | lactic
acid. | b. | citric acid. | c. | alcohol. | d. | ATP. | | |
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39.
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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. | recharging the electron transport
chain. | | |
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40.
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The
energy needed to win a 2-minute footrace is produced mostly by a. | lactic acid
fermentation. | b. | cellular respiration. | c. | using up stores
of ATP. | d. | breaking down fats. | | |
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41.
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All
of the following are sources of energy during exercise EXCEPT a. | stored
ATP. | b. | alcoholic
fermentation. | c. | lactic acid fermentation. | d. | cellular
respiration. | | |
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42.
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Which
process does NOT release energy from glucose? a. | glycolysis | b. | photosynthesis | c. | fermentation | d. | cellular
respiration | | |
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43.
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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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44.
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The
products of photosynthesis are the a. | products of cellular respiration. | b. | reactants of
cellular respiration. | c. | products of glycolysis. | d. | reactants of
fermentation. | | |
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Other
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USING SCIENCE SKILLS
A student
prepared two beakers with identical sprigs of a water plant as shown below. She placed one beaker in
the shade and the other beaker beside a fluorescent lamp. She then systematically changed the
distance of the beaker from the lamp. She counted the bubbles given off by each sprig of the water
plant. Shown here is the graph of the data for the beaker she placed in the
light.
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45.
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Controlling Variables Which beaker is the student’s control?
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46.
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Using Tables and Graphs Look at the graph in Figure 8-4. At what distance from
the light source was the greatest number of bubbles produced?
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47.
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Analyzing Data Look at the graph in Figure 8-4. What do the student’s data
show?
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USING SCIENCE SKILLS
Figure
8-6
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48.
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Interpreting Graphics What process is shown in Figure 8-6?
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49.
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Interpreting Graphics What structure is shown in Figure 8-6?
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50.
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Interpreting Graphics Look at Figure 8-6. What are the products of the
light-dependent reactions?
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