What are Quantasomes?

What is Bioluminescence?

Define action spectrum.

State Blackman's law of limiting factor.

A Test tube containing water, ferricyanide and isolated chloroplasts was illuminated. A gas started evolving on the basis of their experiment.
Answer the following questions.
i) From which raw material is the gas evolved?
ii) Explain the process(step) by which it is evolved?
iii) In which light would the gas stop evolving and why?