The formation of structural disulphide bonds in cellular proteins is a catalysed process that involves many proteins and small molecules. The primary pathways of disulphide-bond formation are ...

Actin and tubulin are the major components of the eukaryotic cytoskeleton. It was previously thought that prokaryotes lacked a cytoskeleton. However, research in the 1990s firmly established that, in ...

Pili are short, hair-like structures on the cell surface of prokaryotic cells. They can have a role in movement, but are more often involved in adherence to surfaces, which facilitates infection, and ...

A nucleus is one of many membrane-bound compartments that distinguishes our eukaryotic cells from the prokaryotic cells of microorganisms like bacteria. Eukaryotic cells also possess energy-producing ...

Sara Hawkins teaches a project-based biology class at Manor New Tech High School in Manor, Texas. She can be reached at <a href="mailto:[email protected] ...