Skip to content
    Biology GCSE

    hydrogen bonding

    What hydrogen bonding means in Biology GCSE, as defined for OCR.

    Definitions of hydrogen bonding

    Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.

    Check what you remember

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

    Reference: OCR

    Bases pair via hydrogen bonds, with adenine pairing with thymine and guanine pairing with cytosine.
    OCR · What happens in cells (and what do cells need)?
    Weak bonds between opposite complementary bases that hold the two strands together.
    OCR · What happens in cells (and what do cells need)?

    Topics that use hydrogen bonding

    Related terms

    Using hydrogen bonding 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