Emerson's enhancement effect and Red drop have been instrumental in the discovery of :-

1. A. Photophosphorylation and non-cyclic electron transport
2. B. Two photosystems operating simultaneously
3. C. Photophosphorylation and cyclic electron transport
4. D. Oxidative phosphorylation

Attempt this NEET 2016 Biology question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.