BIOL107 Study Guide - Final Guide: Antimicrobial Resistance, Chromophore, Betalain

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL107
• Professor: Wallin Garrin

Document Summary

Lab 1: pure culture - an isolated group of genetically identical cells. Contamination with other cell types is easy since microorganisms are everywhere in the environment. Lawn - a dense, even layer of bacteria on the plate with the medium. trypticase soy. Contains enzymatically digested soy protein as a source of nitrogen: metric conversions. 1 m = 100 cm = 1000 mm: light microscope. Light source > specimen > lenses > eye. Par-focal - the objective lenses can be changed without having to refocus the microscope. Condenser lens: under the stage, focuses the light on to the specimen. Condenser diaphragm iris that controls the amount of light that enters the lens system: decreasing the amount of light can improve contrast (diff. b/w light and dark areas on the slide, helps see translucent and unstained specimens. Objective lens: gathers light from the specimen, magnify the image and projects it into the body tube, are of varying magnifications.