Emerson's enhancement effect and Red drop have been instrumental i...
The correct answer is option C
Emerson performed photosynthetic experiment. on Chlorella. He provide monochromatic light of more than 680 nm and observed decrease in rate of photosynthesis known as red drop. Later, he provide synchronised light of 680 nm and 700 nm and observed increase in rate of photosynthesis known as enhancement effect. This experiment led to discovery of two photosystems - PS-I and PS -II opeaning in photosynthesis
Emerson's enhancement effect and Red drop have been instrumental i...
Enhancement Effect and Red Drop in Photosynthesis:
Enhancement effect and Red drop are phenomena discovered by Emerson in the study of photosynthesis. These concepts have been instrumental in the discovery of the following:
Two Photosystems Operating Simultaneously:
- The enhancement effect refers to the observation that when two light sources of different wavelengths are used simultaneously, the overall rate of photosynthesis is higher than the sum of the rates obtained with each light source alone. This phenomenon led to the realization that two photosystems are operating simultaneously in photosynthesis.
Significance of Two Photosystems:
- The discovery of two photosystems operating simultaneously in photosynthesis, known as Photosystem I and Photosystem II, revolutionized our understanding of the light-dependent reactions of photosynthesis. These photosystems work together to capture light energy and convert it into chemical energy in the form of ATP and NADPH.
Efficiency of Photosynthesis:
- Understanding that two photosystems are functioning simultaneously in photosynthesis helps explain the high efficiency of the process. Each photosystem is responsible for absorbing different wavelengths of light and carrying out specific reactions that contribute to the overall conversion of light energy into chemical energy.
In conclusion, Emerson's enhancement effect and Red drop have been crucial in revealing the presence of two photosystems operating simultaneously in photosynthesis, shedding light on the intricacies of this fundamental biological process.
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