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Classification of bacteria - Coggle Diagram
Classification of bacteria
Shape
Cocci
spherical shape
Bacilli
= cylindrical shape
Spirilla
multiple curvature
Vibro
curved
Gram-stay
Gram-positive
Gram-negative
O2 requirement
Aerobes
needs O2 to live
Anaerobes
can survive without O2
Nutrition
Phototrophs
Gain energy from light
Chemotrophs
Gain energy from chemical compounds
Cannot carry out photosynthesis
Autotrophs
Use CO2 to prepare its own food
Heterotrophs
Use organic compound as carbon source
Temperature requirement
Psychrophiles
Optimum t° = 15-20°C
Pyschrotrops
Optimum t° = 20-30°C
Mesophiles
Optimum t° = 37°C
Termophiles
Optimum t° = > 45°C
Hyperthermophiles
Optimum t° = > 80°C
pH
Acidophiles
Grow best at an acidic pH (0-6.5)
Alkaliphiles
Grow best at an alkaline pH (7.5-14)
Neutrophiles
Grow best at neutral pH (6.5-7.5)
Osmotic pressure requirement
Halophiles
Require moderate to large salt concentrations
Extreme/obligate halophiles
Require a very high salt concentrations
Facultative halophiles
Do not require high salt concentrations for growth
Number of flagella
Atrichos
Has no flagella
Monotrichous
Has one flagella
Lophotrichous
Bunch of flagella is attached to ONE end of the bacteria
Amphitrichous
Bunch of flagella is attached to BOTH ends of the bacteria
Peritrichous
Bunch of flagella attached to the entire bacteria cell
