Question

Emerson’s enhancement effect and red drop have been instrumental in the discovery of

• A. Oxidative phosphorylation
• B. Photophosphorylation and noncyclic electron transport
• C. Two photosystems operating simultaneously
• D. Photophosphorylation and cyclic electron transport

Answer 1

The correct option is C

Two photosystems operating simultaneously

Emerson’s enhancement effect and red drop have been used in discovery of two photosystems PSI and PSII, which operate simultaneously.