Biology II Ch. 7 Testing Yourself in Text
Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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The absorption spectrum of chlorophyll
a. | approximates the action spectrum of photosynthesis | b. | explains why
chlorophyll is a green pigment | c. | shows that some colors of light are absorbed
more than others | d. | all of these are correct |
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2.
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The final acceptor of electrons during the noncyclic electron pathway is
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3.
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A photosystem contains
a. | pigments, a reaction center, and an electron acceptor | b. | ADP, P, and hydrogen
ions (H+) | c. | protons, photons, pigments | d. | both B and C are
correct |
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4.
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Which of these should not be associated with the electron transport
system?
a. | cytochromes | b. | movement of H+ into the thylakoid
space | c. | formation of ATP | d. | absorption of solar
energy |
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5.
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PEPcase has an advantage compared to rubisco. The advantage is that
a. | PEPcase is present in both mesophyll and bundle sheath cells, but rubisco is
not. | b. | rubisco fixes carbon dioxide only in C4 plants, but PEPcase does it in both C3 and C4
plants. | c. | rubisco combines with O2, but PEPcase does not. | d. | Both B and C are
correct. |
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6.
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The NADPH and ATP from the light-independent reactions are used to
a. | cause rubisco to fix CO2 | b. | reform the photosystems | c. | cause electrons to
move along their pathways | d. | convert PGA to
PGAL |
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7.
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CAM photosynthesis
a. | is the same as C4 photosynthesis | b. | is an adaptation to cold environments in the
Southern Hemisphere | c. | is prevalent in desert plants that close their
stomates during the day | d. | occurs in plants that live in marshy
areas |
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8.
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Chemiosmotic ATP synthesis depends on
a. | an electrochemical gradient | b. | a difference in H+ concentration between the
thylakoid space and the stroma | c. | ATP breaking down to ADP +
P | d. | both A and B are correct |
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Completion
Complete each
statement using the following word bank.
Question #9
Question #10
inner
membrane
ATP
outer membrane
carbohydrate
stroma
carbon
dioxide
thylakoid
NADPH
thylakoid space
oxygen
water
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9.
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#9 A. Beginning of question #9
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10.
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#9 B.
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11.
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#9 C.
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12.
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#9 D.
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13.
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#9 E.
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14.
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#9 F.
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15.
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#9 G.
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16.
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#10 A. Beginning of question
#10
Product put into
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17.
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#10 B. Product made
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18.
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#10 C. Product put into
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19.
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#10 D. Product made
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20.
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#10 E. The energy molecule that is made and used during
photosynthesis.
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21.
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#10 F. The electron carrier that is loaded up with electrons and protons and
unloaded during photosynthesis.
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22.
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Understanding the Terms - Word Bank on
Page 128 !!!!!!!!!!!
A. Discrete packet of solar energy; the amount of energy in
a packet is inversely related to the wavelength of the packet.
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23.
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B. Energy-capturing portion of photosynthesis that takes place in the
thylakoid membranes of chloroplasts and cannot proceed without solar energy; it produces ATP and
NADPH.
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24.
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C. Green pigment that absorbs solar energy and is important in
photosynthesis.
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25.
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D. Large, central compartment in a chloroplast that is fluid filled and
contains enzymes used in photosynthesis.
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26.
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E. Membrane-bounded organelle with chlorophyll-containing membranous
thylakoids; where photosynthesis takes place.
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27.
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F. Photosynthetic unit where solar energy is absorbed and high-energy
electrons are generated; contains a pigment complex and an electron acceptor.
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28.
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G. Passage of electrons along a series of carrier molecules from a higher
to lower energy level; the energy released is used for the synthesis of ATP.
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29.
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H. Process usually occuring within chloroplasts whereby chlorophyll traps
solar energy and carbon dioxide is reduced to a carbohydrate.
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30.
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I. Series of photosynthetic reactions in which carbon dioxide is fixed
and reduced in the chloroplast.
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31.
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J. Synthesis portion of photosynthesis that takes place in the stroma of
chloroplasts and does not directly require solar energy; it uses the products of the light-dependent
reactions to reduce carbon dioxide to a carbohydrate.
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