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Learning objective

Determine the magnification and dimensions of biological specimens, using millimetres as the measurement unit.

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  • Practise with linked questions.
Cambridge IGCSE Combined ScienceCellsCore content

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Quick explanation

Determine the magnification and dimensions of biological specimens, using millimetres as the measurement unit

  • This point belongs to Size of specimens, especially Size of specimens outcomes.
  • You need to be able to determine the magnification and dimensions of biological specimens, using millimetres as the measurement unit.
  • The key ideas to know are Calculate, Determine, and Discuss.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

CalculateDetermineDiscuss

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This objective helps connect Size of specimens outcomes to exam-style questions, flashcards, and revision notes for Size of specimens.

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Paper 3 structured question: Size of specimens

Paper 3Theory (Core)2 marks

Description

Biological Specimen Measurement

A specimen is measured to be 4 mm in actual size and appears as 32 mm under a microscope.

  1. a

    Calculate the magnification of the specimen.

    Aim for approximately 2 distinct marking points.

    [2]
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