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Edexcel A-Level Biology AS 3p 12 Unit 3 Planning an Experiment Questions

State a reproducible sequence with values and units, explain how key conditions are controlled and include enough repeats, processing and risk management for valid data.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
AS

Exam points

  • Specify independent, dependent and controlled variables with measurable outcomes.
  • Describe apparatus, treatments, repeats and quantitative measurements in order.
  • Address safety or ethics and state how collected data will test the prediction.

Edexcel A-Level Biology AS 3p 12 Unit 3 Planning an Experiment Questions question 1

[Maximum number: 2]

The enzyme invertase breaks down sucrose into its two component monosaccharides.

Describe how you would keep the variable you have named in (a)(iv) at a constant value.

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