Biology

Course summary

Module 1 – Development of practical skills in Biology Learners develop and practise a wide range of practical skills throughout the course to enhance their understanding of the subject but also serve as a suitable preparation for the demands of studying Biology at a higher level. The skills acquired are assessed in the written examinations and the Practical Endorsement. Module 2 – Foundations in Biology This module gives learners the opportunity to use microscopes to study cell structure. Biologically important molecules such as carbohydrates, proteins, water and nucleic acids are studied with respect to their structure and function. The structure and mode of action of enzymes in catalysing biochemical reactions is studied as well as membranes within, and at the surface of, cells, and the division and subsequent specialisation of cells. Module 3 – Exchange and transport Learners study the structure and function of gas exchange and transport systems in animals and plants. The significance of surface area to volume ratio in determining the need for ventilation, gas exchange and transport systems in multicellular organisms is emphasised. Module 4 – Biodiversity, evolution and disease In this module learners study the biodiversity of organisms; how they are classified and the ways in which biodiversity can be measured. It serves as an introduction to ecology, emphasising practical techniques and an appreciation of the need to maintain biodiversity. The learners also study pathogens and disease. Module 5 – Communication, homeostasis and energy It is important that organisms are able to respond to stimuli. This is achieved by communication within the body, which may be chemical and/or electrical. Both systems are covered in detail in this module. The formation and use of ATP and the biochemical pathways of photosynthesis and respiration are also considered.