C4.1.8—Modelling sigmoid growth Topic Practice
C4.1.8—Modelling sigmoid growth Topic Practice
Students practise analysing sigmoid growth curves from experiments with yeast or duckweed to identify and explain phase transitions.
How this is tested
- label lag, exponential, transition, and plateau phases on a sigmoid growth graph and link each to limiting factors
- explain why population growth rate declines during the transition phase using resource depletion or waste