Edexcel IGCSE Biology

Revision Notes

1.1.1 The Unifying Characteristics of Living Organisms

The Unifying Characteristics of Living Organisms

  • In order for something to be considered ‘living’, it must fulfil specific criteria that are true of all living organisms
  • These criteria can be remembered using the acronym MRS C GREN
    • Movement
    • Respiration
    • Sensitivity
    • Control
    • Growth
    • Reproduction
    • Excretion
    • Nutrition
  • If something does not carry out all of these life processes, it is either dead or non-living
  • Viruses are a good example of non-living particles/agents

Author: Ruth

Ruth graduated from Sheffield University with a degree in Biology and went on to teach Science in London whilst also completing an MA in innovation in Education. With 10 years of teaching experience across the 3 key science disciplines, Ruth decided to set up a tutoring business to support students in her local area. Ruth has worked with several exam boards and loves to use her experience to produce educational materials which make the mark schemes accessible to all students.
Close

Join Save My Exams

Download all our Revision Notes as PDFs

Try a Free Sample of our revision notes as a printable PDF.

Join Now
Already a member?
Go to Top