Early Experiments in Photosynthesis

Green parts of plants release O₂. This was shown by: 

Which of the following organism was used by T. W. Engelmann to detect the site of oxygen evolution in his experiment on Cladophora?

First action spectrum of photosynthesis is described often as an experiment of

Julius von Sachs studies shows that

$\underline{ \mathrm{A} }$ performed an elegant experiment with an $\underline{ \mathrm{B} }$ plant to show that in bright sunlight, small bubbles were formed around the $\underline{ \mathrm{C} }$ parts, while in dark they did not.

Who among the following proved that light is essential for plant process that purifies foul air by placing priestly setup once in light and once in dark?

Which of the following plant is used by Priestly in the bell jar experiment?

Find the method used to light the candle in bell jar experiment without disturbing the setup.

Priestley concluded on the basis of the above experiment that

Bell jar experiment was performed by

_____ in $1770$ performed a series of experiments that revealed the essential role of air in growth of green plants.

Which of the following substance is used in half leaf experiment to absorb ${\mathrm{CO}}_2$?

Half leaf experiment proved that _____ is required for photosynthesis.

Which of the following is not correctly matched?

Liberation of ${\mathrm{O}}_2$ when green cells in water are exposed to sunlight in the presence of suitable acceptor is called

"Impure air is purified in the presence of light and green plants" was first said by

In the bacterial photosynthesis, hydrogen donor is

Which one of the following categories of organisms do not evolve oxygen during photosynthesis?

Moll's experiment shows

The goal behind the half-leaf experiment by Moll was to show: