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MORPHOLOGY OF BACTERIA - Coggle Diagram
MORPHOLOGY OF BACTERIA
Shape
Cocci
Arrangement
Cluster
Chain
Pairs
Tetrad
Bacilli
Arrangement
Chain
Cuneiform pattern
Palisade
Pleomorphic
Thumb print
Gram staining
Gram positive bacilli
Gram negative bacilli
Cell Membrane
Composition
Phospholipid bilayer
Protein
Semipermeable membrane
Properties
Site of metabolic activity
Respiration
Mesosome
Selectively permeable
Cell Wall
Properties
Rigid
Tough
10–25 nm thick
Gram Positive
Thick peptidoglycan
Teichoic acid present
Lipid content low
Purple after Gram stain
Gram Negative
Thin peptidoglycan
Outer membrane present
Lipoprotein present
LPS present
Lipid content high
Pink after Gram stain
Functions
Gives rigidity
Osmotic protection
Antigenicity
Bacterial virulence
Cytoplasmic Matrix
Ribosome (70S)
Inclusion granules
Glycogen
Volutin
Lipid
Mesosome
Nucleoid
Single chromosome
Functions
Protein synthesis
Metabolism
Cell Wall Appendages
Flagella
Function
Motility
Arrangement
Monotrichous
Vibrio cholerae
Amphitrichous
Lophotrichous
Peritrichous
E. coli
Salmonella
Ultrastructure
Filament
Hook
Basal body
Fimbriae
Function
Adhesion
Common fimbriae
Sex pili
Conjugation
Capsule
Composition
Polysaccharide
Polypeptide
Bacillus anthracis
Functions
Virulence
Antiphagocytic
Antigen (K antigen)
Spore
Sporulation
Dormant stage
Germination
Vegetative cell
Types
Central
Subterminal
Terminal
Examples
Bacillus
Clostridium
Functions
Heat resistance
Chemical resistance
Dryness resistance
Acid Fast Staining
Ziehl-Neelsen stain
Positive
Mycobacterium tuberculosis
Mycobacterium leprae
Negative
Other bacteria
Bacterial Motility
Hanging drop method
Semi-solid media
Craigie tube
Examples
Vibrio
Campylobacter
Helicobacter