Chapter 13 Flashcards Preview

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Flashcards in Chapter 13 Deck (12)
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1
Q

Goals of photosynthesis

A
  • convert light energy to chemical energy (ATP)
  • produce reducing equivalents (NADPH)
  • convert CO2 to sugar (Carbon Fixation)
2
Q

what is the source of electrons?

A

water

3
Q

antenna pigments

A

capable of absorbing light but cannot convert it to chemical energy - pass it on to chlorophyll a pair

4
Q

Photosystem I

A

energizes and transfers e- that are donated to NADP+

5
Q

Photosystem II

A

oxidizes water molecules and donates the energized e- to e- carriers that eventually reduce PSI

6
Q

cytochrome b6f complex

A

passes e- from PSII to PSI

7
Q

Z scheme reaction

A

H2O -> PSII ->PQ -> cyt bf -> PC -> PSI -> Fd -> FNR -> NADP+

8
Q

how many steps are there in water-oxidizing clock

A

5 oxidation states

9
Q

Manganese Cluster

A

stabilizer protein that allows for series of oxidation to occur next to PSII

10
Q

first and last e- carriers?

A

first: chlorophyll a
last: ferredoxin (2 pathways)

11
Q

Noncyclic e- transport

A

FNR to make NADPH

12
Q

Cyclic e- transport

A

PQR drives ATP synthesis without making NADPH