Microbiology Flashcards
Describe the cell wall of gram positive bacteria
Have a thick layer of peptidoglycan in their cell wall
Describe the cell wall of gram negative bacteria
Have a thin layer of peptidoglycan in their cel wall covered by an outer layer of lipopylsacchardies
What conditions are necessary for growing bacteria in a lab
Suitable temperature
Suitable pH
Oxygen
Nutrients
What bacterial is rod shaped
Bacillus
What bacteria is spherical shaped
Coccus
What bacteria is helical shaped
Sprillium
How is gram negative bacteria harder to kill
The outer layer of lipolysaccharide provides some protection against antibiotics and the enzyme lysozyme and therefore making gram negative bacteria harder to kill
What technique is used to classify different types of bacteria
The gram stain technique