Flashcards in Photosynthesis Deck (23):
What does ATP provide in the reactions?
What does NADPH provide in the reactions?
Parts of chloroplast important in photosynthesis
What light wavelength used in photosystem 1?
What light wavelength used in photosystem 2?
Name the three main electron carriers in the light reaction:
When an electron transporter gains an electron, it has been ______.
From where to where does plastoquinone transfer electrons?
From photosystem 2 to cytochrome bf complex
From where to where does plastocyanin transfer electrons?
From cytochrome bf complex to photosystem 2
Where does the light reaction occur?
From the stroma, across the thylakoid membrane into the lumen of the thylakoid
Where does the Calvin cycle (light-independent reaction) take place?
In the stroma of chloroplasts
What does the cytochrome bf complex do?
Pump H+ into lumen when receives electron
What can plastoquinone transfer at one time?
2e- and 2H+
What can plastocyanin transfer at one time?
Where is plastocyanin found?
Where is plastoquinone found?
Where is ferridoxin found?
What does ferridoxin do?
Transfer electrons from photosystem 1 to covert NADP+ into NADPH
What does the light reaction provide for the dark reaction?
NADPH and ATP
What are the three parts of the dark reaction (in order)?
2. Reduction of PGA to G3P
3. Regeneration of RuBP from G3P
How is calvin cycle regulated?
Ferridoxin is regulated
RuBisCo is activated by CO2 (1) and Mg2+ (2)
- Mg2+ moves into stroma as H+ pumped into thylakoids in light reaction
What is photorespiration?
When RuBisCo attaches O2 (not CO2) to RuBP