- ADP converted into ATP
- None of the above.
- ATD converted into ADP
- H2O converted into H2
- Reduction of NAD to NADH to occurs in Calvin Cycle.
- S. Ochoa showed NADP+ is the biological electron acceptor in the chloroplast.
- Fixation and reduction of carbon dioxide requires ATP, NADPH and light.
- NADH produced in light reaction is used for reduction of carbon dioxide.
During what stage of photosynthesis is O2 produced?
the light-dependent reactions involving photosystems I and II
the Krebs cycle
- Photo systems – I and II are involved in Z – scheme.
- In PS – I, the reaction centre chlorophyll –a has an absorption maxima at 680 nm and is called p680
- The splitting of water molecule is associated with PS – II
- In PS – II reaction centre, chlorophyll – a has an absorption peak of 700 nm, hence called p700
Which of the events listed below occur in the light reactions of photosynthesis?
carbon dioxide is incorporated into PGA.
ATP is phosphorylated to yield ADP.
light is absorbed and funneled to reaction-center chlorophyll a.
NADPH is reduced to NADP+.
Which of the following sequences correctly represents the flow of electrons during photosynthesis?
NADPH → chlorophyll → Calvin cycle
H2O → photosystem I → photosystem II
NADPH → O2 → CO2
H2O → NADPH → Calvin cycle
The oxygen that is released as O2 during photosynthesis came from _____________ molecules.
During photosynthesis, photons raise electrons to higher energy levels. These excited electrons belong to what compound?
- Generation of ATP and NADPH2
- Reduction of CO2
- Splitting of water
- Disintegration of plastids
- Excitement of an electron of chlorophyll by a photon of light
- Ionization of water
- Joining of 3-carbon atom to form glucose
- Formation of ATP