BIOL 2051 : Micro Lab Midterm Study Guide Part 1
Document Summary
Intro: binomial name: name unique to each species and consists of a genus name (capitalized) and a species name (lowercased). Experiment 2: microorganisms: living organisms that are too small to be seen with the naked eye, pathogenic: the minority of mo; disease causing for humans, nonpathogenic: majority of mo; not disease causing, nosocomial: hospital-aquired infections. Experiment 3: infectious dose: the number of microorganisms or viruses sufficient to establish an infection hand washing prevents getting an infectious dose. *transient flora usually not able to multiply on skin because of the skin"s acidity (ph 4-6) *outer layer of skin acidic, low water, often dry; washing hands sloughs off outer layer and exposes normal flora that thrives in the apocrine and sebaceous glands in the skin (moisture and nutrients) Experiment 4: colony: group of genetically identical bacteria arising from a single cell, colony morphology: characteristics of the colonies such as shape, margin, elevation and pigmentation (anything naked to the human eye)
