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7 Cards in this Set
- Front
- Back
Growth
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Increase in cell number
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Growth and survival depends on...
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Nutrient availability
Physical requirement |
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Nutritional Requirements for Growth
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Essential Nutrients
Macronutrients Micronutrients |
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Essential Nutrients
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-substances microbe cannot make itself
-must acquire from environment |
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Macronutrients
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-nutrients required in large quantities
-ex: CHNOPS, Ca, Mg, Fe, K, ions |
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Micronutrients
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-required in very small quantities
-ex: Cobalt, Mn, Nickle, Zinc |
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Required for growth
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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 |