Plant cells have a rigid cell structure. They are made up of a cell ... curriculum-linked resources to help deliver lessons - all arranged by subject and age group. Back to top GCSE exam dates ...

As workhorses of the cell, proteins compose structural and motor ... In fact, each gene in cellular DNA contains the code for a unique protein structure. Not only are these proteins assembled ...

A plant cell wall is arranged in layers and contains cellulose microfibrils, hemicellulose, pectin, lignin, and soluble protein. These components are organized into three major layers: the primary ...