OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Emerson’s enhancement effect and Red drophave been instrumental in the discovery of?
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Two photosystems operating simultaneously
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Photophosphorylation and cyclic electron transport
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Oxidative photophosphorylation
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Photophosphorylation and non-cyclic electron transport
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Explanation:
Detailed explanation-1: -The photosynthetic experiment of the Emerson effect takes place on Chlorella. The red drop effect observes on monochromatic light. The Emerson Enhancement effect observes on synchronized light of 680 nm and 700 nm. Both processes take place in the photosynthesis of plants.
Detailed explanation-2: -The red drop experiment was demonstrated by Robert Emerson and Charlton Lewis in 1943. The scientists set an experiment for oxygen evolution in the green algae Chlorella pyrenoidosa and examined the action spectrum in the visible region.
Detailed explanation-3: -This is known as Emerson enhancement effect. this experiment led to discover of two photosystem-PS-I (P700) and PS-II (P680) operating in photosynthesis.
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