The cell is the structural and functional unit of living organisms. It was discovered by Robert Hooke in 1665.

National 5 Cell structure The functions of cell organelles Cells are microscopic building blocks of unicellular and multicellular living organisms.

There are many different kinds of membranes in a cell. Learn how they subdivide sections of a cell and how proteins in these membranes are gatekeepers for what goes in and what comes out.

The cell nucleus is the site of many important biological functions of the eukaryotic cell. These processes include transcription, replication, splicing and ribosome biogenesis.

Find out how vesicles function in the body and what the five main types of vesicle are. We also discuss how vesicles interact with other cells and pathogens.

Arthur W. Haupt, Cell Structure and Cell Division in the Cyanophyceae, Botanical Gazette, Vol. 75, No. 2 (Apr., 1923), pp. 170-190 ...