ASBiologyAQARevision NotesCell StructureCell StructureThe Cell Theory

The Cell Theory (AQA AS Biology): Revision Note

Exam code: 7401

Lára Marie McIvor

Written by: Lára Marie McIvor

Reviewed by: Ruth Brindle

Updated on

The cell theory

  • Cell theory states that

    • all living organisms are composed of one or more cells,

    • the cell is the basic unit of life,

    • all cells arise from pre-existing cells

  • This unifying theory underpins our understanding of structure, function, and continuity in living organisms.

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Author
Reviewer
Lára Marie McIvor

Author: Lára Marie McIvor

Expertise: Biology, Psychology & Sociology Subject Lead

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.

Ruth Brindle

Reviewer: Ruth Brindle

Expertise: Biology Content Creator

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.

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