Biology study guides

An N(A)-Level Science (Biology) module overview of biomolecules and enzymes. The elements and building blocks of carbohydrates, proteins and fats, how enzymes act as biological catalysts and the effect of temperature and pH, and the four food tests, with links to every dot point in the module.

An N(A)-Level Science (Biology) module overview of cell structure and organisation. The parts of animal and plant cells and their functions, how cells are specialised for their jobs, the ladder from cell to organism, and how to use a light microscope and calculate magnification, with links to every dot point.

An N(A)-Level Science (Biology) module overview of ecology and the environment. Food chains and the flow of energy from the Sun, the carbon cycle linking photosynthesis, respiration, decomposition and combustion, and the impact of human activity with ways to reduce harm, with links to every dot point.

An N(A)-Level Science (Biology) module overview of homeostasis and coordination. What homeostasis is and how insulin controls blood glucose by negative feedback, the nervous system and the reflex arc as a fast automatic response, and the structure of the eye and how it responds to light, with links to every dot point.

An N(A)-Level Science (Biology) module overview of the movement of substances. Diffusion, osmosis and active transport defined and compared, the factors that change the rate of each, and what osmosis does to plant and animal cells, with links to every dot point in the module.

An N(A)-Level Science (Biology) module overview of nutrition. The word equation for photosynthesis and its limiting factors, how the leaf is adapted for photosynthesis and gas exchange, and the human digestive system from physical and chemical digestion to absorption, with links to every dot point.

An N(A)-Level Science (Biology) module overview of reproduction and inheritance. Sexual reproduction in humans from fertilisation to birth, sexual reproduction in flowering plants from pollination to seed, and the basics of genes, alleles and a simple genetic cross, with links to every dot point.

An N(A)-Level Science (Biology) module overview of respiration and gas exchange. Aerobic and anaerobic respiration and the energy each releases, the parts of the human breathing system and how breathing happens, and how gas exchange in the alveoli is adapted for fast diffusion, with links to every dot point.

An N(A)-Level Science (Biology) module overview of transport in organisms. The components of human blood and their functions, the structure of the heart and the double circulation, and how plants move water in the xylem and food in the phloem including transpiration, with links to every dot point.