Key term for Edexcel GCSE Biology, used in Enzymes.
An indicator used to test for the presence of starch, turning from orange-brown to blue-black if starch is present.
Iodine solution appears in Edexcel GCSE Biology revision content for Key Concepts in Biology, especially Enzymes and pH and Enzyme Activity Investigation.
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Key Concepts in Biology
Enzymes • Factors Affecting Enzyme Activity
