Zusammenfassung der Ressource
Frage 1
Frage
The water necessary for photosynthesis
Antworten
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is split into H2 and O2
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is directly involved in the synthesis of carbohydrates
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provides the electrons to replace the lost electrons in photosystem II
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Provides the H+ needed to synthesize G3P
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does none of the above
Frage 2
Frage
In PSII, p680 differs from the other pigment molecules in the light-harvesting complex in that it
Antworten
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is a carotenoid
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absorbs light energy and transfers that energy to other molecules with out the transfer of electrons
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transfers an excited electron to the primary electron acceptor
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does not transfer an excited electron to the primary electron acceptor
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acts as an ATP synthase to produce ATP
Frage 3
Frage
The cyclic electron flow that occurs via photosystem I produces
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NADPH
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oxygen
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ATP
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all of the above
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a and c only
Frage 4
Frage
During linear electron flow, the high-energy electron from p680
Antworten
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eventually moves to NADP+
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becomes incorporated in water molecules
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is pumped into the thylakoid space to drive ATP production
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provides the energy necessary to split water molecules
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falls back to the low-energy state in photosystem II
Frage 5
Frage
During the first phase of the Calvin Cycle, carbon dioxide is incorporated into ribulose biphosphate (RuBP) by
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oxaloacetate
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rubisco
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RuBP
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quinone
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G3P
Frage 6
Frage
The NADPH produced during the light reactions is necessary for
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the carbon fixation phase, which incorporates carbon dioxide into an organic molecule of the Calvin Cycle
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the reduction phase, which produces carbohydrates in the calvin cycle
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the regeneration of RuBP of the Calvin Cycle
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all of the above
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a and b only
Frage 7
Frage
The majority of the G3P produced during the reduction and carbohydrate production phase is used to produce
Frage 8
Antworten
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is the process where plant use sunlight to make ATP
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is an inefficient way plants can produce organic molecules and in the process use O2 and release CO2
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is a process that plants use to convert light energy to NADPH
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occurs in the thylakoid lumen
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is the normal process of carbohydrate production in cool, moist environments.
Frage 9
Frage
Photorespiration is avoided in C4 plants because
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these plants separate the formation of a four-carbon molecule from the rest of the Calvin cycle in different cells.
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these plants carry out only anaerobic respiration.
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the enzyme PEP caroboxylase functions to maintain high CO2 concentrations in the bundle-sheath cells
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all of the above
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a and c only
Frage 10
Frage
Plants commonly found in hot and dry environments that carry out carbon fixation at night are
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oak trees
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C3 plants
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CAM plants
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all of the above
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a and b only