GCSE · Edexcel

Edexcel GCSE 1BI0 Biology

1 lessons out now for this course, 118 planned. Teachers: see the spec coverage.

Cells and microscopyBI011 of 4 out

BI01-01Eukaryotic and prokaryotic cells11 min
BI01-02Sub-cellular structures and what each one doesComing soon
BI01-03The size and scale of cellsComing soon
BI01-04Microscopy and the magnification equationComing soon

Cell division, specialisation and stem cellsBI020 of 4 out

BI02-01Mitosis and the cell cycleComing soon
BI02-02Cell differentiation and how organisms growComing soon
BI02-03Cell specialisationComing soon
BI02-05Stem cells and meristemsComing soon

Enzymes, digestion and metabolismBI030 of 4 out

BI03-01How enzymes work: the active site, specificity and denaturingComing soon
BI03-02What changes the rate of an enzyme-controlled reactionComing soon
BI03-04Building and breaking down carbohydrates, proteins and lipidsComing soon
BI03-05Measuring the energy in food by calorimetry (triple)Coming soon

Transport in and out of cellsBI040 of 4 out

BI04-01Diffusion and active transport across the cell membraneComing soon
BI04-02Osmosis and the change in mass of plant tissueComing soon
BI04-03Exchange surfaces and the surface area to volume ratioComing soon
BI04-04What sets the rate of diffusion, and Fick's lawComing soon

Plant tissues and transportBI050 of 5 out

BI05-01Plant tissues and the structure of a leafComing soon
BI05-02Root hair cells, xylem and phloemComing soon
BI05-03Transpiration, translocation and the stomataComing soon
BI05-04What changes the rate of transpiration, and measuring itComing soon
BI05-05Plants adapted to extreme environments (triple)Coming soon

Photosynthesis and respirationBI060 of 4 out

BI06-01Photosynthesis: the reaction, its reactants and its productsComing soon
BI06-02What limits the rate of photosynthesisComing soon
BI06-03Interacting limiting factors and the inverse square law (Higher) Higher_Only tierComing soon
BI06-05Respiration: aerobic and anaerobicComing soon

The heart, blood and circulationBI070 of 4 out

BI07-01The heart, the blood vessels and the double circulatory systemComing soon
BI07-02The blood and its four componentsComing soon
BI07-03Cardiac output, stroke volume and heart rateComing soon
BI07-04Coronary heart disease and how it is treatedComing soon

Health, disease and lifestyleBI080 of 4 out

BI08-01Health, disease and how diseases interactComing soon
BI08-02Lifestyle risk factors for non-communicable diseaseComing soon
BI08-03Reading disease data: sampling, correlation and causeComing soon
BI08-04Cancer: benign and malignant tumoursComing soon

Pathogens and infectious diseaseBI090 of 7 out

BI09-01Pathogens and the diseases they causeComing soon
BI09-02How infections spread, and how the spread is stoppedComing soon
BI09-03Viral diseases: measles, HIV and tobacco mosaic virusComing soon
BI09-04Bacterial diseases: Salmonella and gonorrhoeaComing soon
BI09-05Fungal disease: rose black spotComing soon
BI09-06Protist disease: malaria and the mosquito vectorComing soon
BI09-07The virus lifecycle: lytic and lysogenic pathways (triple)Coming soon

Defence, vaccines and medicinesBI100 of 8 out

BI10-01The body's defences: barriers, white blood cells and the immune responseComing soon
BI10-02Vaccination and herd immunityComing soon
BI10-03Antibiotics, antivirals, antiseptics and painkillersComing soon
BI10-04Discovering and testing a new medicineComing soon
BI10-05Measuring a zone of inhibition: the area of a circleComing soon
BI10-06Culturing microorganisms and aseptic technique (triple)Coming soon
BI10-07Producing monoclonal antibodies (triple, Higher) Higher_Only tierComing soon
BI10-08Using monoclonal antibodies (triple, Higher) Higher_Only tierComing soon

Plant disease and plant defencesBI110 of 2 out

BI11-02How plants defend themselves (triple)Coming soon
BI11-03Detecting and identifying plant disease (triple, Higher) Higher_Only tierComing soon

Homeostasis and the nervous systemBI120 of 5 out

BI12-01Homeostasis: holding internal conditions steadyComing soon
BI12-02The nervous system, neurones, synapses and the reflex arcComing soon
BI12-03The brain and what each region does (triple)Coming soon
BI12-04Investigating and treating the brain (triple, Higher) Higher_Only tierComing soon
BI12-05The eye, and how sight problems are corrected (triple)Coming soon

Temperature, water and the kidneyBI130 of 5 out

BI13-01Controlling body temperature (triple)Coming soon
BI13-02Explaining how the thermoregulation mechanisms work (triple, Higher) Higher_Only tierComing soon
BI13-03The kidney: filtration and selective reabsorption (triple)Coming soon
BI13-04Kidney failure: dialysis and transplant (triple)Coming soon
BI13-05ADH, water balance and negative feedback (triple, Higher) Higher_Only tierComing soon

Hormones and blood glucoseBI140 of 5 out

BI14-01The endocrine system and its glandsComing soon
BI14-02Insulin and the control of blood glucoseComing soon
BI14-03Glucagon and the negative feedback control of blood glucose (Higher) Higher_Only tierComing soon
BI14-04Type 1 and type 2 diabetesComing soon
BI14-05Adrenaline, thyroxine and negative feedback (Higher) Higher_Only tierComing soon

Hormones in reproductionBI150 of 4 out

BI15-01Hormones in reproduction and the menstrual cycleComing soon
BI15-02How FSH, LH, oestrogen and progesterone interact (Higher) Higher_Only tierComing soon
BI15-03ContraceptionComing soon
BI15-04Treating infertility with hormones and IVF (Higher) Higher_Only tierComing soon

Plant hormonesBI160 of 2 out

BI16-01Plant hormones: auxin, phototropism and gravitropism (triple)Coming soon
BI16-03Commercial uses of plant hormones (triple, Higher) Higher_Only tierComing soon

DNA, genes and protein synthesisBI170 of 4 out

BI17-01DNA, genes, chromosomes and the genomeComing soon
BI17-02DNA structure: nucleotides, complementary bases and the triplet codeComing soon
BI17-03Protein synthesis: transcription and translation (triple, Higher) Higher_Only tierComing soon
BI17-04How a genetic variant changes a protein or gene expression (triple, Higher) Higher_Only tierComing soon

Reproduction, meiosis and variationBI180 of 4 out

BI18-02MeiosisComing soon
BI18-03Variation: genes, environment and mutationComing soon
BI18-04Weighing sexual against asexual reproduction (triple)Coming soon
BI18-05Mendel, and how our understanding of genetics developed (triple)Coming soon

Inheritance and genetic disordersBI190 of 6 out

BI19-01The language of inheritance: alleles, genotype and phenotypeComing soon
BI19-02Monohybrid crosses: Punnett squares, family trees, ratios and probabilityComing soon
BI19-04Sex determination and the XX / XY crossComing soon
BI19-06The human genome and what knowing it lets us doComing soon
BI19-07ABO blood groups: multiple alleles and codominance (triple)Coming soon
BI19-08Sex-linked inheritance (triple, Higher) Higher_Only tierComing soon

Evolution and the evidence for itBI200 of 6 out

BI20-01Evolution by natural selection, and how new species formComing soon
BI20-03The evidence for evolutionComing soon
BI20-05Evidence for human evolution: Ardi, Lucy, Leakey and stone toolsComing soon
BI20-06Classification: Linnaeus, binomial names and the three domainsComing soon
BI20-07Darwin, Wallace, and how the theory came to be accepted (triple)Coming soon
BI20-08The pentadactyl limb as evidence of a common ancestor (triple)Coming soon

Selective breeding, GM and cloningBI210 of 5 out

BI21-01Selective breedingComing soon
BI21-02Genetic engineering: what it isComing soon
BI21-03The steps of genetic engineering (Higher) Higher_Only tierComing soon
BI21-04Weighing genetic engineering and selective breeding: benefits, risks and ethicsComing soon
BI21-05Cloning: tissue culture, cuttings, embryo transplants and adult cell cloning (triple)Coming soon

Ecosystems, food chains and biomassBI220 of 6 out

BI22-01Levels of organisation in an ecosystem, and what makes a community stableComing soon
BI22-02Abiotic factorsComing soon
BI22-03Biotic factorsComing soon
BI22-04Interdependence: competition, predation, mutualism and parasitismComing soon
BI22-06Food chains, trophic levels and predator-prey cyclesComing soon
BI22-07Pyramids of biomass and the efficiency of biomass transfer (triple)Coming soon

Sampling, cycles and decayBI230 of 3 out

BI23-01Sampling a habitat: quadrats, transects and capture-recaptureComing soon
BI23-02The carbon and water cycles, and the role of decomposersComing soon
BI23-03Decomposition: what changes the rate of decay, and how we use it (triple)Coming soon

Human impact on biodiversityBI240 of 3 out

BI24-02How human activity reduces biodiversity: waste, pollution and altered ecosystemsComing soon
BI24-06Maintaining biodiversity: conservation, breeding programmes and reforestationComing soon
BI24-07Indicator species and monitoring pollution (triple, Higher) Higher_Only tierComing soon

Food security and feeding the worldBI250 of 2 out

BI25-01Food security: what threatens it (triple)Coming soon
BI25-04Biotechnology and GM crops to feed a growing population (triple)Coming soon

Required practicalsBI260 of 8 out

BI26-01Required practical: using a light microscopeComing soon
BI26-02Required practical: testing food for carbohydrates, lipids and proteinsComing soon
BI26-03Required practical: how pH and temperature change enzyme activityComing soon
BI26-04Required practical: osmosis and the mass of plant tissueComing soon
BI26-05Required practical: light intensity and the rate of photosynthesisComing soon
BI26-06Required practical: sampling a habitat with quadrats and transectsComing soon
BI26-07Required practical: antiseptics and antibiotics on a bacterial cultureComing soon
BI26-08Required practical: measuring the rate of respirationComing soon