What cells that usually lack chlorophyll but often store starch, air spaces are usually very common?

A fuel cell is nothing more nor less than a means of converting chemical energy , and any green dye will do this. A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction  Hope this helps.

Dis the correct answer thats what i put and it was right 

Iam a beginner but i sa answer is