Need help making cell

I have a small project I need to do and I really think blender is the way to go in order to execute my design. I need to make an animal cell. Outside view and inside view (photos attached) and would just like some advice on the best way to go about doing this. I have tried adding textures to sphere shapes and it is so much harder than adding them to things like planes. I am fairly new to blender so this may be biting off more than I can chew but I really want to do an impressive job with this cell diagram so any advice/tips/tutorial suggestions would be very appreciated.

Moved from “Blender Artists Website Support” to “Modeling”