Unit 2 - Microbial growth

Microbial growth

Examples of Bad microbial growth

Good  Growth?

Binary fission

How do bacteria grow in ideal conditions?

Vary by organism - dependent on many factors

What are the typical growth conditions for bacterial outside of the lab?

Calculate the generation time of an organism

Initial number of cells  x  2generations  =  cells

Describe each phase of the bacterial growth curve:

Lag phase

Log phase

Stationary phase

Death phase

 Quantifying bacterial cultures:

Direct counting count what types of cells?

Pour vs. spread plates check for what type of cells?

Membrane filters?

Optical Density/Turbidity?

Most Probable Number (MPN)?

Metabolic Activity?

Dry Weight?