IB MYP Biology

Free revision notes, plus printable worksheets for members, for MYP Years 4–5 — 16 topics from cells to biotechnology.

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These notes cover the biology you meet in MYP Years 4 and 5: how life is organized, the chemistry that keeps cells alive, how organisms feed, breathe, transport materials and stay healthy, how characteristics are inherited and evolve, and how living things interact with each other and with us. Every topic has worked examples, a “science in context” box for Criterion D, quick-check questions and a printable worksheet with questions for all four criteria and a full mark scheme.

MYP Sciences is marked against four criteria, A to D. They are explained, with examples, on the MYP Sciences criteria pages, which apply to biology exactly as they do to physics and chemistry. — Mr. Suta

16 topics 16 worksheets with mark schemes Criteria A–D Free, no sign-in

🧬Biology topics

Read the notes, then print the worksheet (the numbers under each group) and try it without looking. Worksheet 1 (📝) is a free sample; the others (🔒) are for members. Topics 2 (cells) and 4 (enzymes) are worth doing first: almost everything else builds on them.

1

Cells and organisms

Topics 1–3

Topic 1Characteristics and classification of life Topic 2Cells and microscopy Topic 3Movement in and out of cells
Worksheets: 📝 1 🔒 2 🔒 3
2

Metabolism

Topics 4–6

Topic 4Biological molecules and enzymes Topic 5Photosynthesis and plant nutrition Topic 6Respiration and gas exchange
Worksheets: 🔒 4 🔒 5 🔒 6
3

Life processes

Topics 7–10

Topic 7Nutrition and digestion Topic 8Transport in animals and plants Topic 9Coordination, response and homeostasis Topic 10Health, disease and immunity
Worksheets: 🔒 7 🔒 8 🔒 9 🔒 10
4

Inheritance and evolution

Topics 11–13

Topic 11DNA, cell division and reproduction Topic 12Inheritance and variation Topic 13Evolution, natural selection and adaptation
Worksheets: 🔒 11 🔒 12 🔒 13
5

Interactions with the environment

Topics 14–16

Topic 14Ecosystems and interactions Topic 15Human impact on the environment Topic 16Biotechnology
Worksheets: 🔒 14 🔒 15 🔒 16

📋How you are assessed

Criterion A · /8Knowing and understanding Criterion B · /8Inquiring and designing Criterion C · /8Processing and evaluating Criterion D · /8Reflecting on the impacts of science

Each worksheet follows the same four parts. Part A tests knowledge and its application; Part B asks you to plan an investigation (research question, variables, method, safety and ethics); Part C gives you data to graph, analyse and evaluate; Part D asks you to weigh the impact of the biology on people, communities and the environment. Mark yourself honestly with the mark scheme and look back at the notes for anything you missed.

🔬The other MYP sciences

MYP Physics — 19 topics from measurement to radioactivity, plus how MYP Sciences is marked. MYP Chemistry — 13 topics from states of matter to the atmosphere.