Microbiology Unknown Lab Report Essay

2396 WordsApr 16, 201210 Pages
Lab12-Medical Microbiology- Part1– Differential Media/Biochemical Tests, Sp2012 (Set all of your margins to ½”) Purpose: The purpose of this lab is to help you become a little familiar with some of the tests that can be typically performed in a clinical or research lab facility. These tests may help in determining a particular pathogen’s growth needs. There are several sections to this lab. Find each section and complete the “Preparing for Class” sections. Preparing for class - Day 1 Read in your lab manual about the following agar mediums: Blood Agar (pg 168), EMB Agar (pg 170), Mannitol Salt Agar (MSA)(pg 172) ), MacConkey Agar (pg 174), and PEA Agar (pg 176) to answer the following: 1. What does the blood agar select for?…show more content…
|bacteria, or |enterococci | | | | |greenish/gray hue | | | | | |around | | |EMB Agar | |Distinguishes bacteria that ferment |Dark blue colonies with|E. coli and P. | | |Gram-negative bacteria |lactose and or sucrose and those that|green metallic sheen or|aeruginosa | | | |do not. |pink. | | |MSA Agar |For organisms that are |Isolates for mannitol fermentation |Yellow color change in |Staphylococcus aureus | | |halotolerant. | |surrounding media. |and Staphylococcus | | | | | |epidermidis | | | | |
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