Name the scientist who demonstrated the effect of different wavelengths of light on photosynthesis using green algae and aerobic bacteria.

One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of

Early studies on the pathway of $CO_2$ fixation in plants were made during the $1940$s in:

Continued evolution of $O_2$ in a suspension of an isolated chloroplast in light in the presence of ferric salt,viologen dyes,etc.,is called:

What is the by-product of bacterial photosynthesis?

$T$. $W$. Engelmann performed experiments on $.......$.