Usually autotrophic, but can also be heterotrophic. Chemotrophs Use organic or inorganic compounds as their primary energy source. Can be either auto-or heterotrophic. Growth patterns generation time is the time required for a microbial population to double. Lag phase synthesis, but no marked growth 2.
Log phase exponential growth with minimal generation time.
Most sensitive to antimicrobials because most of these drugs attack dividing cells. Stationary phase equilibrium 4. Death phase death rate is greater than the doubling rate Direct Measurement of Microbial Growth 1. Avoids overgrowth as can happen with spread plate techniques. Pour plates - microbes in a liquid are mixed with warm liquid agar prior to the plates being poured.