Write a sentence explaining the connection between each pair of words. plant cell, cell wall

A plant cell is very different from an animal cell, they both do different processes and a plant cell has a cell wall, unlike an animal cell who only has a cell membrane.

Or

Cell walls are rigid structures that protect plant cells, they are what make plants maintain their shape.

this protocol provides a detailed procedure for agarose-based ip to purify and enrich the protein of interest.