Photosynthesis Flashcards

(8 cards)

1
Q

Thylakoids

A

saclike photosynthetic membranes
- gather sun’s energy with light absorbing molecules called pigments

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2
Q

Light reactions

A

convert light energy into chemical energy
-Produce ATP and NADPH

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3
Q

Carbon fixation reactions (dark reactions)

A

use ATP and NADPH from light reactions plus CO2 to produce carbs

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4
Q

What happens when photons are absorbed

A

molecule acquires the energy of the photon, molecule goes from ground state to excited state

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5
Q

Electron acceptor

A

the first carrier in an electron transport system in thylakoid

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6
Q

Electron flow

A

Happens after chlorophyll a gives off an electron and finally reduced NADP+ into NADPH and H+

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7
Q

Light rxn pt2.

A

-18 ATP made
- Water is split
-12 NADPH are made

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8
Q

light independednt rxn 2.

A

-Fixation of CO2 catalyzed by Rubisco
- Reduction of 3PG into G3P
-Regeneration of CO2 acceptor RuBP (5/6 are recycled back to RuBP, 1/6 used to make sugars

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