Question

Emerson's enhancement effect leads to the conclusion that

• A. Two pigment systems are involved in photosynthesis and they absorb light of different wavelengths.
• B. Two wavelengths together increase the quantum yield of photosynthesis.
• C. The pigment systems have a reaction centre surrounded by light harvesting accessory pigment molecules
• D. None of the above

Answer 1

The correct option is B

Two wavelengths together increase the quantum yield of photosynthesis.

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).