are needed to grow microorganisms in the la boratory and to carry out specialized procedures like microbial identification, water and food analysis, and the isolation of particular microorganisms. A wide variety of media is available for these and other purposes
are needed to grow microorganisms in the laboratory and to carry out specialized procedures like microbial identification, water and food analysis, and the isolation of particular microorganisms. A wide variety of media is available for these and other purposes. Culture media
can be obtained through the use of spread plates, streak plates, or pour plates and are required for the careful study of an individual microbial species
can be obtained through the use of spread plates, streak plates, or pour plates and are required for the careful study of an individual microbial species. Pure cultures
Nutrient molecules frequently cannot cross selectively permeable plasma membranes through passive diffusion and must be transported by one of three major mechanisms involving the use of membrane carrier proteins
Nutrient molecules frequently cannot cross selectively permeable plasma membranes through passive diffusion and must be transported by one of three major mechanisms involving the use of membrane carrier proteins. Uptake of nutrients
1, Phagocytosis-Protozoa 2, Permeability absorption Most microorganisms passive transport, simple diffusion facilitated diffusion active transport roup translocation
1, Phagocytosis – Protozoa 2, Permeability absorption – Most microorganisms • passive transport , simple diffusion • facilitated diffusion • active transport • group translocation
passive diffusion A few substances, such as glycerol, can cross the plasma membrane by passive diffusion. Passive diffusion is the process in which molecules move from a region of higher concentration to one of lower concentration as a result of random thermal agitation
A few substances, such as glycerol, can cross the plasma membrane by passive diffusion. Passive diffusion is the process in which molecules move from a region of higher concentration to one of lower concentration as a result of random thermal agitation. passive diffusion