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Photosynthesis and Respiration

Photosynthesis and Respiration
What is the maximum absorption wavelength for photosystem I in green plants?

600 nm
700 nm
550 nm
750 nm

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Photosynthesis and Respiration
Assume the combined processes of photosynthesis and cellular respiration, the electrons that start as part of H2O at the beginning of the light reactions end up attaching to

O2 to make new H2O
electron transport carriers to make O2
NADPH to make new glucose
pyruvate to make ethanol

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Photosynthesis and Respiration
In oxygenic photosynthesis, water is split in order to provide the

electrons needed to reduce P680
O2 needed for the dark reactions
electrons needed for cyclic photophosphorylation
electrons needed to reduce NADH

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Photosynthesis and Respiration
In noncyclic photophosphorylation, the ultimate acceptor of electrons that have been produced from the splitting of water is

carbon dioxide
chlorophyll a
chlorophyll b
NADP+

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Photosynthesis and Respiration
In oxygenic photosynthesis, the electron donor is

water
NADH
NADPH
oxygen

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Photosynthesis and Respiration
Electron transport systems play a vital role in

all of these
Calvin cycle
photorespiration
light-dependent reactions

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MORE MCQ ON Photosynthesis and Respiration

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