Bacterial Growth Flashcards
a population of organisms descended from a single cell and is therefore separated from all other species
pure culture
guy who developed solid media for bacterial growth, agar-agar used in cooking, derived from seaweed
Koch
What is microbial growth defined as?
an increase in the number of cells in a population
What is it called: the time it takes for a population to double in number is the?
generation time
What phase of the growth curve: cells ramp up by synthesizing macromolecules required for division & ATP
lag phase (latent)
What phase of the growth curve: cells dividing at a constant rate, growth is balanced with available nutrients
exponential phase (log)
What phase of the growth curve: cells have exhausted supply of energy and nutrients, number of cells remains relatively constant
stationary phase
What phase of the growth curve: population decreases as cells die off at constant rate
death phase