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Cell structure
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Cells and organelles

Cells and organelles

Labelled comparison of a typical animal cell and a typical plant cell showing nucleus, cytoplasm, cell membrane, mitochondria, ribosomes, cell wall, chloroplasts and a large permanent vacuole

All living organisms are made of cells. A cell is the smallest unit of life, and organelles are specialised structures inside cells that each have a particular job.

Cell structure Lesson

  1. IGCSE
  2. /Biology
  3. /Cell structure

Step-by-step lessons on Edexcel IGCSE Biology Cell structure. Each one builds up to exam-style questions. Start with the foundational cell biology and core content before moving on to the more data-heavy ecology, genetics and practical-skills topics, which carry a large share of the exam marks.

Lessons