GCSE Biology Worksheets & Revision Guides

Eukaryotes vs. prokaryotes, cell specialization, light vs. electron microscopy, magnification formula ($M = I/A$), mitosis & cell cycle, stem cells, diffusion, osmosis, and active transport.

Enzyme lock-and-key theory, denaturation, digestive system enzymes (amylase, protease, lipase), blood components, the heart & coronary heart disease, and plant transpiration/translocation.

Pathogens (viral, bacterial, fungal, protist), human immune defences (phagocytosis, antibodies, antitoxins), vaccination, antibiotics & resistance, and monoclonal antibodies.

Photosynthesis reaction, limiting factors analysis (light, $CO_2$, temperature), inverse square law, aerobic vs. anaerobic respiration, exercise physiology, and cellular metabolism.

Human nervous system & reflex arc, the brain & eye (triple), endocrine glands, blood glucose regulation (insulin & glucagon, diabetes), kidneys & ADH, and the menstrual cycle.

Sexual vs. asexual reproduction, meiosis, DNA double helix structure, protein synthesis, Punnett genetic crosses, inherited disorders (cystic fibrosis, polydactyly), and natural selection.

Abiotic vs. biotic factors, adaptations & extremophiles, sampling (quadrats & transects), carbon & water cycles, decomposers & rate of decay, pyramids of biomass, and food security.