Skip to content
    Biology GCSE

    iodine test

    What iodine test means in Biology GCSE, as defined for OCR.

    Definition of iodine test

    Check what you remember

    Read the wording for your board, then hide it and explain iodine test in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: OCR

    A sample is transferred to a spotting tile well containing iodine solution, and the endpoint is reached when the iodine no longer turns blue-black and stays orange-brown.
    OCR · What happens in cells (and what do cells need)?

    Topics that use iodine test

    Related terms

    Using iodine test in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Biology questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Biology GCSE terms