EVERYDAY SCIENCE

Detailed explanation-1: -Red drop effect discovered by Emerson is due to disruption of photochemical activity of PS II. Wavelengths beyond 700nm are useless for the process of photosynthesis, so a huge drop of inefficiency is noticed at wavelength 700nm. This phenomenon is called the red drop effect.

Detailed explanation-2: -Emerson’s enhancement effect and Red drop have been instrumental in the discovery of. two photosystems operating simultaneously.

Detailed explanation-3: -The Emerson enhancement effect refers to the increase in quantum yield of photosynthesis when monochromatic beams of two different wavelengths (680 and 700 nm) are used together on the test organism (Chlorella).

Detailed explanation-4: -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.