Cambridge IAL Biology study plan
Cambridge IAL Biology · Give each week a clear focus.
8 weeks · About 7 hours per week
AS Level content (main theoretical concepts, current applications of biology, advanced practical skills)
Build a one-page summary map linking biological molecules (water, carbohydrates, lipids, proteins) to their monomers, bonds and functions
Draw and label the fluid mosaic model from memory, then annotate the roles of phospholipids, cholesterol, glycoproteins and channel/carrier proteins
Compare transport mechanisms (diffusion, facilitated diffusion, osmosis, active transport, co-transport) in a table with direction, energy source and example
Practise calculating water potential and interpreting osmosis data from a described experiment without any figure
Write out the core practical method for investigating membrane permeability using beetroot and identify the variables to control
Your checkpoint
A 2-page handwritten summary sheet covering molecules and membranes, self-quizzed to at least 90% recall on a 20-item self-test you write yourself
AS Level content (main theoretical concepts, current applications of biology, advanced practical skills)
Describe enzyme action using induced fit, and explain the effects of temperature, pH, substrate and inhibitor concentration on rate
Distinguish competitive from non-competitive inhibition with a worked example and predict graph shapes for each
Explain the structure of DNA and RNA nucleotides and compare DNA replication (semi-conservative) with transcription and translation
Outline the stages of mitosis and meiosis and state where crossing over and independent assortment occur
Solve genetics problems involving monohybrid and dihybrid crosses, including test crosses and probability
Your checkpoint
A worked problem set of 10 genetics and enzyme-kinetics questions with full reasoning shown, scored and error-logged
AS Level content (main theoretical concepts, current applications of biology, advanced practical skills)
Explain gas exchange surfaces in mammals, insects and plants using Fick's law and link structure to function
Describe the cardiac cycle, interpret pressure and volume changes, and label a heart diagram from memory
Outline transport in plants: root hair uptake, transpiration, cohesion-tension and translocation in the phloem
Explain the roles of xylem and phloem and compare their structures in a table
Practise describing and explaining trends in unfamiliar transport data presented in text form
Your checkpoint
A comparative table of gas exchange and transport systems in at least four organisms, plus three data-interpretation answers written under timed conditions
AS Level content (main theoretical concepts, current applications of biology, advanced practical skills)
Summarise classification, biodiversity and the principles of natural selection and evolution
Explain the causes of variation and how selection leads to adaptation and speciation
Describe immunity: non-specific defences, phagocytosis, the specific immune response and the role of antibodies
Distinguish active from passive immunity and explain vaccination and its limitations
Complete a timed mixed-topic paper covering weeks 1-4 and mark it against mark schemes
Your checkpoint
A completed 60-minute mixed AS-level practice paper with a scored mark breakdown and a written list of the five weakest topics
A Level content (main theoretical concepts, current applications of biology, advanced practical skills)
Explain photosynthesis in detail: light-dependent reactions, photophosphorylation, the Calvin cycle and limiting factors
Describe respiration: glycolysis, the link reaction, Krebs cycle, oxidative phosphorylation and anaerobic pathways
Compare photosynthesis and respiration in a table of location, inputs, outputs and ATP yield
Interpret data on limiting factors, respiratory quotients and oxygen consumption in described experiments
Practise writing extended answers linking structure to function in chloroplasts and mitochondria
Your checkpoint
Two annotated flow diagrams (one for photosynthesis, one for respiration) drawn from memory and checked against notes, with every stage labelled
A Level content (main theoretical concepts, current applications of biology, advanced practical skills)
Explain homeostasis using negative feedback, with thermoregulation and blood glucose control as worked examples
Describe the roles of insulin, glucagon, adrenaline and the kidney in osmoregulation and excretion
Explain nerve impulse transmission: resting potential, action potential, refractory period and saltatory conduction
Describe synaptic transmission, including the roles of neurotransmitters and the effect of drugs
Outline muscle structure and the sliding filament model of contraction
Your checkpoint
A set of five exam-style extended-response answers (homeostasis, kidney, neurones, synapses, muscle) each marked against mark-scheme points and rewritten once
A Level content (main theoretical concepts, current applications of biology, advanced practical skills)
Explain coordination in plants using auxins and gibberellins, and describe tropisms
Describe ecosystems: energy flow, trophic levels, productivity, decomposition and the carbon and nitrogen cycles
Explain succession, conservation and the factors affecting biodiversity
Describe gene technology: PCR, gel electrophoresis, genetic screening and the ethical issues involved
Practise experimental design questions, including choosing controls, replicates and suitable statistical tests
Your checkpoint
A written experimental-design answer for two unseen scenarios, each including variables, controls, a sampling method and a named statistical test with justification
AS Level content (main theoretical concepts, current applications of biology, advanced practical skills) & A Level content (main theoretical concepts, current applications of biology, advanced practical skills)
Complete two full timed mock papers, one weighted to AS content and one to A Level content, under exam conditions
Mark every answer against mark schemes and tag each lost mark by cause (knowledge, application, calculation, wording)
Re-teach the three weakest tagged areas using condensed notes and targeted questions
Practise command words (describe, explain, suggest, evaluate) with one-sentence answer plans for ten prompts
Build a final one-page formula-and-definitions sheet for quick pre-exam review
Your checkpoint
A completed error log across both mocks with a percentage score for each domain and a one-page revision sheet of definitions and calculations
Milestones
Week 4: Score at least 65% on the timed mixed AS-level paper and be able to name your five weakest topics from memory of the marked script
Week 6: Draw the photosynthesis and respiration diagrams with all stages correct from memory, and score at least 60% on the five extended-response answers
Week 8: Score at least 70% on the final mock and show that no single lost-mark cause accounts for more than 30% of your errors