Course Level:  National 4

Biology is the study of living organisms and plays a crucial role in our everyday existence.  Advances in technologies have made this varied subject more exciting and relevant than ever.  Pupils will have the opportunity to develop their understanding and interest of the world through a variety of biological topics.

The National 4 Biology course consists of 4 units:


Learners will study cell structure and processes within cells, photosynthesis and respiration, as well as DNA, protein and biotechnology. 

Multicellular Organisms

Learners will study plants and animals in areas such as reproduction and inheritance, growth, maintenance of a temperature and blood glucose within organisms and behavioural adaptations.            

Life on Earth

Learners will study world ecosystems, evolution, natural selection and competition, behaviour, biodiversity, decay, recycling and microorganisms and ethical issues.

Added Value Unit

This involves selecting a topical area of Biology to investigate and research. This will take no more than 8 hours. It also includes a supervised open book assignment based on research carried out which has to be completed in 2 hours.

Course Level:  National 5

The National 5 Biology course consists of 3 units:


Learners will study cell structure, transport across membranes, production of new cells, proteins and enzymes ,genetic engineering, photosynthesis and respiration

Multicellular Organisms

Learners will study cells tissues and organs, stem cells and meristems, control and communication, reproduction, variation and inheritance, the need for transport and the effect of lifestyle choices on animal transport and exchange systems.

Life on Earth

Learners will study biodiversity and the distribution of life, energy in ecosystems, sampling techniques and measurement of abiotic and biotic factors, adaptation natural selection ,the evolution of a species and human impact on the environment

Added Value at National 5

The added value will involve the in-depth study of a biological topic and its impact on society and the environment. This will be 7 hours of preparation followed by a 1 hour open book assessment.

Further information can be obtained from (