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Cambridge (CIE) · A Level

Biology 9700

Explain membrane transport, complementary DNA and oxygen delivery with the molecular detail needed for our AS Biology starter questions.

3 teaching lessons1 practice set
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Teaching notes & worked examples

These lessons teach the topics represented in our current practice sets. They are not a complete course for every paper or option in the qualification.

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Open a lesson, practise its questions, then revisit it from memory. Progress below records your own study checks.

  1. 01

    The fluid mosaic membrane

    Explanation → worked example → self-check

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  2. 02

    DNA base pairing and direction

    Explanation → worked example → self-check

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  3. 03

    Haemoglobin and oxygen delivery

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Opened and self-reported recall are study activity, not a mastery score. Only published topics are shown; syllabus coverage remains partial.

Original StudyForA lessons. AI-assisted editorial checks; human subject-teacher review remains pending.

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AS & A Level Biology 9700 · Starter Paper

3 questions · 45 minute timed paper

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Official papers

Historical and specimen papers may follow a different syllabus. Check the year and component before practising.