Week 2 - Bacterial Features + Gram Stain
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19 Terms
Glycocalyx
Viscous, gelatinous coating surrounding cell wall
Capsule
Organised + firm
Slime Layer
Amorphous + loose
Glycocalyx Functions
Increase virulence - pathogenic
Resist phagocytosis
Prevent desiccation
Adhesion
Biofilm formation
Resist antibiotics
Conjugation
DNA/plasmid transfer between bacteria via sex pili
Share antibiotic resistance
Endospore Colour
Green
Vegetative Cell Colour
Red
Heterotrophs
Obtain energy from other organisms
Autotrophs
Create own food
Plasmid
Small circular independent chromosome
Non essential functions - antibiotic resistance
Transfer
GPOS
Thick peptidoglycan
Techoic/lipoteichoic acid
Retain crystal violet iodine complex
GNEG
Thin peptidoglycan
Lipoproteins
Lipopolysaccharides
Porins
LPS
O antigens
Corepolysaccharides
Lipid A - endotoxins
Mycoplasma
Bacteria without cell wall
Antibiotic resistant
4 Shapes
Bacilli
Cocci
Spirilla
Vibrio
4 Arrangements
Diplo
Strepto - chains
Straphylo - clusters
Mesosomes
Invaginations of plasma membrane
Cellular resp
Flagella - Parts
Basal body - motor
Hook - joint
Spore forming Genus
Bacillus
Clostridium
