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In terms of colonies or colony forming units (CFU).

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12y ago
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4mo ago

Bacteria growth is commonly expressed as the increase in the number of bacteria present over time. This can be quantified by measuring the colony-forming units (CFU) or by using optical density measurements to estimate bacterial density. Growth can also be expressed as generation time, which is the time it takes for a bacterial population to double in number.

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Q: How is bacteria growth expressed?
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What is phototropism -?

Phototropism refers to the growth of certain living organisms (mainly plants and bacteria) which occurs towardsa light source.Positive phototropism will be expressed by growing towards light, negative phototrophism will be expressed by growing away from light.It is the directional growth whereas the direction of growth is determined by the direction of the light source. An example would be Heliotrope (sunflowers).also it is the growth of a plant in the direction of its light source


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The three growth patterns of bacteria are exponential growth, stationary phase, and death phase. Exponential growth is when bacteria multiply rapidly, stationary phase is when growth rate equals death rate, and death phase is when bacteria start dying off due to nutrient depletion or waste accumulation.


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