How is a growth curve of microorganisms shaped? What happens during the different phases?


The growth of most microorganisms can be divided into four different phases:Lag phase - Small populations start to replicate slowly. Replication is 'lagging' as microorganisms are adapting to conditions.Log/ exponential phase - Microorganisms begin to replicate rapidly in favourable conditions. Food and space are abundant.Stationary phase - Growth and death rate are equal (no net growth). Food becomes sparse and space is limited. Waste products build up.Death phase - Death rate is greater than growth rate (number of viable cells decreases), food is depleted, waste products build up even more.

Answered by Biology tutor

2224 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What is the structure of a protein?


What are antibodies and how do they work?


Explain how a rise in blood pressure results in a decrease in the rate of heartbeat.


What bonds are present in each type of structure of a protein?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences