CSEC Human and Social Biology study materials
CSEC Human and Social Biology study resources

CSEC Human and Social Biology study plan

CSEC Human and Social Biology · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Organisms and Metabolism

  • Define the distinguishing characteristics of living organisms and classify each characteristic with one original Caribbean example

  • Label a diagram of the human digestive system from memory and state the function of each named organ

  • Distinguish mechanical from chemical digestion and name the enzyme active at each region of the alimentary canal

  • Explain the role of bile, the pancreas and the villus structure in absorption

  • Write out the balanced role of enzymes using the lock-and-key idea, including the effect of temperature and pH on activity

Your checkpoint

A one-page hand-drawn digestive system diagram with every organ labelled and a table of four digestive enzymes listing substrate, product and site of action

Week 2

Organisms and Metabolism

  • Describe aerobic and anaerobic respiration, stating the word equation, ATP yield and the site in the cell for each

  • Compare respiration with photosynthesis in terms of reactants, products, energy change and organelle involved

  • Explain the effect of exercise on breathing rate, heart rate and lactic acid accumulation

  • Interpret a simple respirometer or limewater experiment and state the conclusion drawn

  • Define photosynthesis and list the limiting factors that affect its rate

Your checkpoint

A comparison table of photosynthesis and respiration with at least six points of contrast, plus a written explanation of why breathing rate rises during vigorous exercise

Week 3

Organisms and Metabolism & Life Processes

  • Describe the structure and function of the circulatory system, including the double circulation and the heart's chambers and valves

  • Explain how the transport systems of a named plant (xylem and transpiration, phloem and translocation) differ in structure and function

  • Describe how the kidney and skin regulate water and salt balance in the body

  • Explain the role of the liver in assimilation, deamination and detoxification

  • Compare the transport systems of a mammal and a flowering plant

Your checkpoint

A concept map linking digestion, absorption, transport and excretion, with every arrow labelled by the substance moved

Week 4

Life Processes

  • Describe the structure of a motor neurone and explain how an impulse crosses a synapse

  • Explain reflex action using a named example and outline the reflex arc in order

  • Distinguish the roles of the cerebrum, cerebellum, medulla and hypothalamus

  • Describe how hormones such as insulin, adrenaline and ADH act as chemical messengers

  • Explain how negative feedback controls blood glucose concentration

Your checkpoint

A labelled reflex arc diagram plus a 150-word explanation of how negative feedback restores blood glucose after a meal

Week 5

Life Processes

  • Describe the menstrual cycle and identify the hormones that control its phases

  • Compare sexual and asexual reproduction, naming two advantages of each

  • Describe pollination, fertilisation and seed dispersal in a named flowering plant

  • Explain the role of the placenta and amniotic fluid in the development of the fetus

  • Describe the structure and function of the male and female reproductive systems

Your checkpoint

A hormone timeline of the menstrual cycle showing the rise and fall of oestrogen, progesterone, FSH and LH across 28 days

Week 6

Heredity, Diseases and the Environment

  • Define genotype, phenotype, allele, dominant, recessive and homozygous, and use them correctly in written answers

  • Complete genetic crosses for monohybrid inheritance, including a test cross, and state expected ratios

  • Explain sex determination and give two examples of sex-linked inheritance

  • Distinguish continuous from discontinuous variation and give two causes of each

  • Explain how mutation and natural selection can change the frequency of an allele in a population

Your checkpoint

A set of five worked genetic crosses, each with a Punnett square, the parental genotypes and the expected phenotypic ratio

Week 7

Heredity, Diseases and the Environment

  • Classify named diseases as communicable or non-communicable and identify the causative agent of each

  • Describe the body's first and second lines of defence and explain how vaccination produces immunity

  • Explain the modes of transmission of at least three named Caribbean-relevant diseases and one control measure for each

  • Describe the effects of pollution, deforestation and poor waste disposal on human health

  • Interpret data on disease incidence and suggest one intervention supported by the data

Your checkpoint

A disease fact sheet covering five diseases with causative agent, transmission route, symptoms, treatment and one prevention measure for each

Week 8

Organisms and Metabolism & Life Processes & Heredity, Diseases and the Environment

  • Answer a full timed practice paper under exam conditions and mark it against the mark scheme

  • Identify the three domain areas where accuracy was lowest and re-teach each weak point

  • Practise structured questions requiring explanations and data interpretation rather than recall alone

  • Summarise each domain onto a single revision card containing the highest-yield facts

  • Draw every required diagram from memory without reference material

Your checkpoint

One completed timed practice paper with a written error log of at least ten mistakes, each paired with the corrected fact

Milestones

Week 2: Explain, without notes, the difference between aerobic and anaerobic respiration and name the products of each in a 5-minute spoken or written summary

Week 4: Score at least 70% on a self-made 20-question test on digestion, respiration, transport and the nervous system

Week 6: Complete three monohybrid crosses correctly, including one test cross, and predict the offspring ratio each time

Week 8: Score at least 65% on a full timed practice paper and show that every logged error has a corrected fact written beside it