Planctomycetes form a distinctive phylum of the Bacteria, having a unique combination of features such as peptidoglycan-lacking proteinaceous cell walls, and intracellular membranes that form separate ...

Cells are the building blocks of all living organisms. Test your knowledge of the structure of cells in preparation for your National 5 Biology exam. Looking for more cell structure revision? There is ...

Cell the Unit of Life MCQs: All living things have one thing in common: their building blocks. Either unicellular or multicellular, all organisms are formed of cells. Thus, knowing a cell and its ...

Researchers have discovered a type of organelle, a fundamental cellular structure, that can turn nitrogen gas into a form that is useful for cell growth. The discovery of the structure, called a ...

Among bacteria, the spirochetes are characterized by their spiral shape and remarkable length — as much 50 times longer than most other bacteria. This can make cell elongation and division a laborious ...