KS3 & KS4 science curriculum

This unit builds on pupils’ prior learning from Coordination and control: the human nervous system, where they explored how the body uses electrical signals to respond to stimuli. It deepens their understanding by examining the endocrine system, focusing on how hormones regulate body functions and maintain homeostasis. This prepares pupils for Photosynthesis: requirements and products, where they will explore how plants use environmental signals to regulate growth, linking control across organisms.

1. The human endocrine system
2. Insulin and the control of blood sugar level
3. Insulin, glucagon and the control of blood sugar level
4. Type 1 and type 2 diabetes
5. Adrenaline, thyroxine and negative feedback

• Humans are multicellular organisms – they are made up of millions of living cells.
• Specialised cells in animals have shapes, sizes and structures that are adapted for the jobs the cells do.
• The circulatory system transports substances around the body in the blood.
• The human body has a nervous system that enables us to sense and respond quickly to changes outside and inside the body.
• Receptors detect stimuli.
• Sensory neurons transmit nerve impulses from receptors to processing centres such as the brain in the CNS.
• Motor neurons transmit nerve impulses from the CNS to effectors that carry out responses.