study guide review chap 10 Flashcards

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1
Q

source of oxygen in photosynthesis?

A

water

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2
Q

what do light reactions produce and where do they occur?

A

in the thylakoids, they produce oxygen and NADPH

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3
Q

which photosystem does cyclic electron flow use?

A

only photosystem one (PS I)

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4
Q

what do light reactions split and produce?

A

split h2o and produce o2

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5
Q

what is oxidized and what is reduced in photosynthesis?

A

water is oxidized and carbon dioxide is reduced in photosynthesis

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6
Q

what is photorespiration?

A

photorespiration is the closing of stomata that reduces access to carbon dioxide and causes oxygen to build up; not able to make sugar

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7
Q

C3 plants?

A

initial fixation of carbon dioxide, via rubisco, forms a 3 carbon compound

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8
Q

C4 plants?

A

avoid photorespiration through a spatial solution to the prob

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9
Q

CAM plants?

A

avoid photorespiration through a temporal solution, opening during night, closing during day

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10
Q

what light can plants use?

A

violet-blue or red, not green or yellow

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11
Q

what directly participates in electron excitation in photosynthesis?

A

only chlorophyll a

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12
Q

photosynthesis and thermodynamic terms

A

photosynthesis is nonspontaneous, is endergonic, anabolic, positive delta G

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13
Q

For calvin cycle, what is needed?

A

for calvin cycle you need 9 atp and 6 nadph: 3 atp for every 2 nadph

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14
Q

Important thing to know about RuBP

A

RuBP is recycled, regenerated so the cycle can continue

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