In which of the following forms is glucose usually stored in plants?

Isotopes popularly known to have been used in the study of photosynthesis are

The experimental material that has largely been responsible for making rapid advances in research on photosynthesis is

Engelmann's experiment with $Spirogyra$ demonstrated that

Name the scientist who demonstrated by the bell jar experiment that plants purify the air.

Which scientist performed the experiment where a burning candle and a mouse were placed in a closed bell jar to demonstrate the role of air in the growth of plants?