MYP Biology Activities
Pick a topic to practise
Cells & Cell Transport
Cell structure, organelles, diffusion, osmosis, and active transport.
Biochemistry
Nutrition, food groups, food tests, enzymes, and digestion.
Gas Exchange & Transport
Lungs, alveoli, ventilation, heart, blood vessels, and plant transport.
Respiration
Aerobic and anaerobic respiration, fermentation, and energy release.
Photosynthesis
Light reactions, limiting factors, leaf adaptations, and uses of glucose.
Pathogens & Disease
Bacteria, viruses, fungi, protists, immunity, and vaccination.
Evolution & Variation
DNA, genetics, Punnett squares, natural selection, and speciation.
Nervous Control
Neurons, reflex arcs, synapses, the brain, and reaction time.
Hormonal Control
Endocrine system, blood glucose, diabetes, and thermoregulation.
Ecology
Ecosystems, food webs, carbon cycle, and biodiversity.
Human Impact
Climate change, pollution, deforestation, agriculture, and conservation.
Biotechnology
Genetic engineering, GM organisms, selective breeding, cloning, and fermentation.
Reproduction
Sexual and asexual reproduction, gametes, menstrual cycle, plant reproduction.
Plant Biology
Photosynthesis, leaf structure, transpiration, tropisms, required practicals.
Investigation Skills
Variables, hypothesis, method design, data reliability, and evaluation.
Criterion B/CFlashcards
Review key concepts and definitions with spaced repetition.
SRS📖 Formula Booklet
Official MYP Biology formula reference & key data.
ReferenceLeaderboard
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Top 20Past Paper Generator
IB-style exam papers with context-based multi-part questions across all topics.
Full Papers & PracticeProgress Dashboard
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Your ProgressPast Paper Generator
IB MYP eAssessment Style
Full Paper Mode
Context-based questions (one per topic), 120 minutes + 5 min reading time, IB grade 1-7.
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Cells & Cell Transport
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Lessons
Cell Structure
Organelles, plant vs animal cells, and microscopy.
LessonCell Transport
Diffusion, osmosis, and active transport.
LessonPractice
Cells Practice
Organelles, magnification, mitosis, and transport questions.
Cells Practice
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Key Facts Reference
Biochemistry
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Lessons
Nutrition
Food groups, balanced diet, energy, and deficiency diseases.
LessonFood Tests
Iodine, Benedict's, biuret, and ethanol emulsion tests.
LessonDigestive System
Organs, enzymes, and the breakdown of food.
LessonPractice
Biochemistry Practice
Nutrition, food tests, enzymes, digestion, and calorimetry.
Biochemistry Practice
IB MYP Level
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Key Facts Reference
Gas Exchange & Transport
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Lessons
Gas Exchange
Lungs, alveoli, ventilation, and breathing mechanics.
LessonCirculatory System
Heart, blood vessels, and blood components.
LessonPlant Transport
Xylem, phloem, transpiration, and translocation.
LessonPractice
Gas Exchange Practice
Lungs, alveoli, blood vessels, heart, and plant transport.
Gas Exchange Practice
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Key Facts Reference
Respiration
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Lessons
Respiration
Aerobic and anaerobic respiration, fermentation, and energy release.
LessonPractice
Bioenergetics Practice
Respiration equations, aerobic vs anaerobic, and rate calculations.
Photosynthesis
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Lessons
Photosynthesis
Light reactions, limiting factors, leaf adaptations, and uses of glucose.
LessonPractice
Bioenergetics Practice
Photosynthesis equations, limiting factors, and rate experiments.
Bioenergetics Practice
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Pathogens & Disease
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Lessons
Pathogens & Disease
Types of pathogens and how diseases spread.
LessonImmune System
Defence mechanisms, white blood cells, and vaccination.
LessonPractice
Pathogens Practice
Pathogen types, immune response, vaccination, and antibiotics.
Pathogens Practice
IB MYP Level
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Key Facts Reference
Evolution & Variation
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Lessons
Genetics Introduction
DNA, genes, chromosomes, and Punnett squares.
LessonEvolution
Natural selection, speciation, and evidence for evolution.
LessonPractice
Evolution Practice
Punnett squares, DNA, genotypes, and evolution questions.
Evolution Practice
IB MYP Level
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Nervous Control
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Lessons
Nervous System
Neurons, reflex arcs, synapses, and the brain.
LessonPractice
Homeostasis Practice
Reflex arcs, neurones, synapses, and reaction time.
Hormonal Control
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Lessons
Hormonal Control
Endocrine system, blood glucose, diabetes, and thermoregulation.
LessonPractice
Homeostasis Practice
Hormones, blood sugar, temperature regulation, and kidneys.
Homeostasis Practice
IB MYP Level
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Key Facts Reference
Ecology
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Lessons
Ecosystems
Food webs, energy pyramids, and nutrient cycles.
LessonBiodiversity
Species diversity, conservation, and sampling methods.
LessonPractice
Ecology Practice
Food webs, carbon cycle, biodiversity, and sampling calculations.
Ecology Practice
IB MYP Level
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Key Facts Reference
Human Impact
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Lessons
Climate Change
Greenhouse effect, global warming, evidence, and mitigation.
LessonHuman Impacts
Deforestation, agriculture, bioaccumulation, and conservation.
LessonPractice
Human Impact Practice
Climate change, pollution, eutrophication, deforestation, and conservation.
Human Impact Practice
IB MYP Level
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Key Facts Reference
Biotechnology
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Lessons
Genetic Engineering
Restriction enzymes, plasmids, GM organisms, and gene therapy.
LessonCloning & Selective Breeding
Selective breeding, natural clones, SCNT, and Dolly the sheep.
LessonPractice
Biotechnology Practice
Genetic engineering, GM organisms, cloning, breeding, and fermentation.
Biotechnology Practice
IB MYP Level
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Key Facts Reference
Investigation Skills
Criterion B & C Practice
Practice
Investigation Practice
Variables, hypothesis, method design, reliability, graphs, and evaluation.
Reproduction
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Reproduction Practice
Sexual & asexual reproduction, gametes, menstrual cycle, plant reproduction.
PracticeReproduction Practice
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Key Facts Reference
Plant Biology
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Plant Biology Practice
Photosynthesis, leaf structure, transpiration, tropisms.
PracticePlant Biology Practice
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Investigation Practice
IB MYP Criterion B/C
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Biology Leaderboard
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Progress Dashboard
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Learning Pathway
Your guided route through Biology
MYP Biology
Formula Sheet & Key Data
For use during the course and in examinations
Cell Biology & Microscopy
| Magnification | \(M = \dfrac{I}{A}\) |
| Actual size | \(A = \dfrac{I}{M}\) |
| Image size | \(I = A \times M\) |
| Surface area to volume ratio | \(\text{SA:V} = \dfrac{\text{Surface Area}}{\text{Volume}}\) |
M = magnification, I = image size, A = actual size. Units must be consistent (usually μm or mm).
Ecology & Populations
| Population density | \(\text{Pop. density} = \dfrac{\text{Number of individuals}}{\text{Area}}\) |
| Population growth rate | \(\text{Growth rate} = \dfrac{\text{Final} - \text{Initial}}{\text{Initial}} \times 100\%\) |
| Percentage cover | \(\% = \dfrac{\text{Area covered by species}}{\text{Total area}} \times 100\) |
| Lincoln index (capture–recapture) | \(N = \dfrac{n_1 \times n_2}{m}\) |
N = estimated population, n₁ = first sample marked, n₂ = second sample total, m = recaptured marked individuals.
Genetics & Inheritance
| Monohybrid ratio (heterozygous cross) | \(3 : 1\) (phenotypic) |
| Dihybrid ratio (heterozygous cross) | \(9 : 3 : 3 : 1\) (phenotypic) |
| Test cross ratio (heterozygous) | \(1 : 1\) (phenotypic) |
Use Punnett squares to determine genotype and phenotype ratios.
Photosynthesis & Respiration
| Photosynthesis | \(6\text{CO}_2 + 6\text{H}_2\text{O} \xrightarrow{\text{light}} \text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2\) |
| Aerobic respiration | \(\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2 \rightarrow 6\text{CO}_2 + 6\text{H}_2\text{O} + \text{energy}\) |
| Anaerobic (animals) | \(\text{glucose} \rightarrow \text{lactic acid}\) |
| Anaerobic (yeast) | \(\text{glucose} \rightarrow \text{ethanol} + \text{CO}_2\) |
Enzymes
| Rate of reaction | \(\text{Rate} = \dfrac{1}{\text{time taken}}\) |
| Temperature coefficient (\(Q_{10}\)) | \(Q_{10} = \dfrac{\text{rate at } (T+10)}{\text{rate at } T}\) |
Breathing & Gas Exchange
| Breathing rate | \(\text{BR} = \dfrac{\text{number of breaths}}{\text{time (min)}}\) |
| Tidal volume | Volume of air in a normal breath (\(\approx 0.5\;\text{dm}^3\)) |
| Vital capacity | Maximum volume exhaled after maximum inhalation |
Key Data
| Light microscope magnification | Up to \(\times 1500\) |
| Electron microscope magnification | Up to \(\times 500{,}000\) |
| Typical animal cell | \(10\text{–}30\;\mu\text{m}\) |
| Typical plant cell | \(10\text{–}100\;\mu\text{m}\) |
| Typical bacterium | \(1\text{–}5\;\mu\text{m}\) |
| 1 mm | \(= 1000\;\mu\text{m}\) |
| 1 μm | \(= 1000\;\text{nm}\) |
© International Baccalaureate Organization
Flashcards
Spaced repetition review