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Photosynthesis and Respiration

Photosynthesis and Respiration
In the initial step of photosynthesis, sunlight energizes the electron pair of

chlorophyll pigments
carbon dioxide
adenosine triphosphate (ATP)
water

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Photosynthesis and Respiration
The rate of photorespiration in most plants increases at.higher temperatures. Some plants have evolved a somewhat round-about system to deal with this problem. This series of reactions is called

C4 pathway
Calvin cycle
Photosystem II
ETS (electron transfer system in light reactions

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Photosynthesis and Respiration
The followings are the products of the light reactions of photosynthesis except

oxygen
glucose
ATP
NADPH

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Photosynthesis and Respiration
Which enzyme is involved in carbon-fixation reaction?

Glycerol kinase
NADP reductase
Cytochrome reductase
Ribulose bisphosphate carboxylase

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Photosynthesis and Respiration
In oxygenic photosynthesis, the electron donor is

oxygen
NADH
water
NADPH

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Photosynthesis and Respiration
Which one of the following is a product of both cyclic and noncyclic photophosphorylation?

NADPH
ATP
Carbohydrate
O2

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