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Growth Culture Oxygen Levels Population Enzymes Inhibit Ph

This flashcard asks you to identify five factors that can limit exponential bacterial growth and explain why each becomes limiting. These factors include nutrient availability, oxygen levels, temperature, waste build-up, and pH changes, each affecting growth as the population increases.

La tarjeta de memoria te pide identificar cinco factores que pueden limitar el crecimiento exponencial de las bacterias y explicar por qué cada uno se vuelve limitante. Estos factores incluyen la disponibilidad de nutrientes, los niveles de oxígeno, la temperatura, la acumulación de desechos y los cambios en el pH, cada uno afectando el crecimiento a medida que la población aumenta.

Front Name 5 factors that may prevent exponential growth in a culture of bacteria, and for each explain why they become limiting.
Back Limiting factors:
  • Nurients available - over time they get used up, if insufficient levels, further growth and reproduction cannot be supported
  • Oxygen levels - as population rises, so does demand for respiratory oxygen
  • Temperature - affects enzyme-controlled reactions, low slows down growth and reproduction, higher speeds it up but iff too high, enzymes denature and microorganisms are killed
  • Waste build-up - as population increases, toxic material build up can inhibit further growth/poison existing culture
  • Change in pH - increasing CO2 levels from respiration decreases pH to a point where it can affect enzymes and inhibit pop growth

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