BIOL 1202 Chapter : Structural And Functional Adaptations Contribute To Prokaryotic Success
Document Summary
Concept 27. 1: structural and functional adaptations contribute to prokaryotic success: prokaryotes are unicellular some colonial forms, range in size from 1 - 5 um, no membrane bound organelles, circular chromosomes. Prokaryotic cells have a variety of shapes: the three most common are spheres (cocci), rods (bacilli), and spirals (spirilli) Maintains cell shape, provides physical protection, prevents cell from bursting in a hypotonic environment. Composed of peptidoglycan in bacteria may also have an outer phospholipid membrane a capsule (a sticky layer of polysaccharide or protein) may cover the cell wall of many prokaryotes. Finbriae and pilli allow prokaryotes to stick to their substrate to other individuals in a colony: motility.
