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

2135 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

I struggle with exam timing and as a result I always run out of time before finishing the paper. How can avoid this in the future?


Explain why the pancreas is described as both an endocrine and an exocrine organ.


How is the diffusion of gases between the alveoli and the alveolar blood vessels facilitated?


Describe the structure of proteins, and the bonds involved.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences