BIOS 242 Week 6 Assignment; Lab 11 0f 14 Onsite; Bacteria of the skin

$10.00

Contributor

Matthew Lillard

Category

Biosciences

Course

BIOS 242 Fundamentals Of Microbiology With Lab

Institute

Chamberlain

Pages

6

Buy Now

Lab 11: Bacteria of the Skin Learning Objectives: Identify the growth of skin bacteria on different types of selective and differential media. Identify pathogenic from non-pathogenic bacteria Introduction: Our skin forms the first line of defense. It has several characteristics that makes it an inhospitable environment for the growth of most microbes. Some of these characteristics of skin include: high percentage of salt, low pH from 4-5.5, sebum, antimicrobial chemicals; an outer layer of dead skin cells that acts as a barrier to pathogens; mechanical defenses such as continuous sloughing off of skin, and dendritic macrophages. Skin also harbors a range of resident microbiota including Staphylococcus and Diptheriae species that act as normal antagonist microbiota. Only the organisms that can tolerate high levels of salt, approximately 7.5% salt concentration are able to grow on skin. Mannitol salt agar (MSA) plates mimic our skin asthey c

Related Products

BIOS 242 Week 1 Assignment; Golden Age and Macromolecules

Contributor: Matthew Lillard

$10.00

Buy