A eukaryote is any cell or organism that possesses a clearly defined nucleus. Eukaryotic cells form the foundation of complex, multicellular life, including apple trees, mushrooms, fish and humans.

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 ...

The chemical reactions on which life depends need a place to happen. That place is the cell. All the things which biology recognises as indisputably alive are either cells or conglomerations of cells ...

Scientists have found a microbe that does something textbooks say is impossible: It's a complex cell that survives without mitochondria. Mitochondria are the powerhouses inside eukaryotic cells, the ...

Prior to using this narrative, have learners create their own model of a cell in their notebooks using whatever background information or experience they might have. While exploring the narrative, ...