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Microbiology

TermDefinition
Passive Diffusion, Osmosis, Facilitated
Active Endocytosis, Exocytosis
Solvent Liquid-usually water
Solute Other Material
Cell size very small
Cell shape (morphology Coccus, Bacillus, Spiral/curves
Coccus round, spherical, oval
Bacillus Rod, short rods that have roundness, Pill, coccobicillus
Spiral/Curves Vibrios, Spirillum, Spirochete
Groupings Chain, Packet, Cluster/Irregular
Growth Media Slant tube, Broth tube, Plate
Lag phase Bacteria is just getting use to new home, make molecules needed to start growing, Lenght of time in this phase depends upon amount of nutrients
Exponential phase Cells dividing at even rate, focus on cell numbers, cells at risk, cells making variety of molecules: ex proteints, amino acids, toward end of this phase thins start to slow down
Stationary phase Energy and nutrients are almost gone, cell growth=cell death
If nutrients are pretty much gone how can some cells keep growing Go canibal
Death phase Cells are dying at a constant but slow rate, no reproduction
Prolonged decline Interesting a small number are still alive living off of their family....fight to the finish, can only be days, can be years
Environmental Factors Temperature, oxygen, pH, water
Created by: bekaleyce