BIO1011 Study Guide - Quiz Guide: Endomembrane System, Liposome, Electron Transport Chain

• School: Monash University
• Department: Science - Biology
• Course: BIO1011
• Professor: Dr. Richard Burke

Document Summary

Genetic material found in a region called the nucleoid, which is not membrane bound. Has a cell membrane, enclosed by a cell wall, enclosed by a capsule. Have a true, membrane-bound nucleus containing genetic material. Phospholipids consist of a hydrophilic, charged phosphate head and a hydrophobic, uncharged fatty acid tail. Called amphipathic molecules, as they have both charges. Structures: can form a micelle structure with all heads facing outwards, can form a liposome; a spherical structure with heads on the outside and inside, e. g. to transport materials, can form bilayer sheets. Phospholipid bilayer forms the framework of all membranes. Fluid-mosaic model: membrane is flexible and can move around, and has many embedded components such as proteins. Diverse fatty acids consist of the tails, which is why dietary requirements are for a variety of fatty acids e. g. omega 3, 6 etc. Phospholipids move laterally (sideways along membrane) very frequently and can flip-flop (from outside to inside) rarely.