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7 Cards in this Set

  • Front
  • Back
Growth
Increase in cell number
Growth and survival depends on...
Nutrient availability
Physical requirement
Nutritional Requirements for Growth
Essential Nutrients

Macronutrients

Micronutrients
Essential Nutrients
-substances microbe cannot make itself
-must acquire from environment
Macronutrients
-nutrients required in large quantities
-ex: CHNOPS, Ca, Mg, Fe, K, ions
Micronutrients
-required in very small quantities
-ex: Cobalt, Mn, Nickle, Zinc
Required for growth
Carbon
Energy
Nitrogen
Sulfur
Phosphorous
Oxygen
Na, K, Fe, Mg
Trace Elements
Growth Factors

In nature: acquired from environment
In lab: Supplied in media or in air above media