Diffusion is the movement of molecules from an area where they’re at a higher concentration to areas that have a lower concentration - goo gle
A ribosome is a cell organelle. It functions as a micro-machine for making proteins. Ribosomes are composed of special proteins and nucleic acids. ... Ribosomes are found 'free' in the cytoplasm or bound to the endoplasmic reticulum (ER) to form rough ER.