photosynthesis :( Flashcards

1
Q

heterotrophs

A

eat other organisms

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2
Q

autotrophs

A

make their own food

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3
Q

What does chlorophyll do?

A

absorbs light energy

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4
Q

whats stomata?

A

the opening things that take in CO2 and can let out water

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5
Q

what happens to water during photosynthesis? (oxidized or reduced)

A

oxidized (loses e-)

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6
Q

What happens to CO2? (oxidized or reduced)

A

reduced (gains e-)

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7
Q

explain what happens in a photosystem

A

a photon of light is absorbed in the pigments which excite the e- found in the pigments. The e- bounces around until it is absorbed by chlorophyll a. The e- jumps up into the final e- acceptor which is then used in an ETC.

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8
Q

Why is water split in photosystem II?

A

so that the electron can replace the ones lost from chlorophyll.

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9
Q

What are the three steps of the Calvin cycle?

A
  1. Carbon fixation
  2. splitting of step 1
  3. synthesizing RuBP
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10
Q

explain carbon fixation

A

rubisco helps bind CO2 (starting compound) with RuBP (finishing compound) making a 6-Carbon compound

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11
Q

Explain step 2 of the Calvin cycle

A

the 6-carbon compound gets split making phosphoglycerates and becomes G3P which makes sugar

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12
Q

Explain the last step of the Calvin Cycle

A
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