Aren't plastic and cellophane basically the same thing?

Question

Please explain how both of them are made. Note that I did not
check this on Wikipedia. This is better!

Answer 1

cellophane is a plastic but not all plastics are cellophane. Nylon is a plastic. Teflon is a plastic. etc...

Making Cellophane

In the manufacturing process, an alkaline solution of cellulose fibres (usually wood or cotton) known as viscose is extruded through a narrow slit into an acid bath. The acid regenerates the cellulose, forming a film. Further treatment, such as washing and bleaching, yields cellophane.