Which factor does NOT contribute to the limited duration of the log phase?
Understand the Problem
The question is asking us to identify which factor among the given options does not contribute to the limited duration of the log phase in bacterial growth. The log phase is the period of exponential growth, and during this time, various factors can impact its duration. The answer will be the factor that does not impede this phase.
Answer
Temperature is not a limiting factor for the duration of the log phase.
Temperature does not limit the duration of the log phase; it influences the rate of growth but is not a limiting factor.
Answer for screen readers
Temperature does not limit the duration of the log phase; it influences the rate of growth but is not a limiting factor.
More Information
The log or exponential growth phase is characterized by cells dividing at a constant rate. While nutrient availability, waste accumulation, and other environmental factors can limit this phase, temperature primarily affects the rate of division but not its potential duration.
Tips
A common mistake is to confuse factors affecting the rate of growth with those limiting its duration. While temperature can speed up or slow down growth, it doesn't limit how long the cells can stay in the log phase if nutrients are available.
Sources
- Log phase - (Principles of Food Science) - Fiveable - library.fiveable.me
- Log Phase Article - LSUHSC - medschool.lsuhsc.edu
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