Explainer texts for all GCSE Biology courses. Read, learn and then test yourself with the suggested quizzes. Enzyme Action Enzymes and Nutrition Diffusion, Osmosis and…
Enzymes are catalysts for biological reactions, including one which we are all familiar with, digestion. When we consume foods we are asking our bodies to…
People have been studying the natural environment since the days of Aristotle and we have learned much about organisms by watching, dissecting and studying them.…
The carbon cycle is the process that moves carbon around the Earth, through different physical, chemical and biological stores. Carbon is temporarily stored in the…
Abiotic factors are physical and biotic factors are biological. For example, parasitism and mutualism are biotic factors and soil pH is an abiotic factor. Both…