KS3 Biology › Cells

Animal Cell Structures and Their Functions

Every animal is built from cells, and every cell is built from the same handful of parts. The nucleus runs it, the membrane controls what gets in, the mitochondria supply the energy — and once you know what each part does, specialised cells like red blood cells and sperm cells stop looking strange and start making sense.

KS3 Biology · Year 7–9 · Free worksheet with answers

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Free worksheet — 3 questions, 13 marks

One page with a full answer key. Enough to check the lesson landed, and to see how the questions are written before you buy anything.

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Every resource comes with a full answer key and marking guidance. Instant download, yours to keep, print as many copies as your class needs.

Full worksheet

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  • 100 marks
  • Three sections of increasing difficulty
  • Word banks on every fill-in-the-blank
  • Complete answer key
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Extension pack

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  • Vocabulary matching
  • Challenge quiz
  • Case study
  • Teach It Back, with rubric
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Complete lesson pack

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Using this with a class

You're welcome to embed the video and link these resources in Google Classroom, Stile, Canvas, Compass or any other school platform. No need to ask.

Everything here is written to the KS3 curriculum for students aged 11–14. Print freely for the classes you teach.

The rest of this unit

Cells

  1. The 7 Life Processes (MRS GREN)
  2. Animal Cell Structures and Their FunctionsYou're here
  3. Plant Cell Structures and Their Functions
  4. Multicellular and Unicellular Organisms
  5. Stem Cells in Animals

Watch the whole KS3 Biology playlist on YouTube →