Biology: Body 3
Body 3: Digestion and enzymes
Overview
Students will learn how the human digestive system provides the body with nutrients. They will investigate how enzymes work and how we test for different food groups.
The main SMSC/Personal Development content of this topic includes: PD20 – National assessments and examinations are useful indicators of pupils’ outcomes, but they only represent a sample of what pupils have learned. Inspectors will balance outcomes with their first-hand assessment of pupils’ work.
The main UN Rights of a Child covered are No.12 – Respect children’s views and No.13 – Sharing thoughts freely.
Example Key Words
Enzyme
A protein which catalyses or speeds up a chemical reaction.
Benedicts
A solution that can be used to test for the presence of a reducing sugar.
Biuret
A chemical which turns purple or mauve in the presence of protein.
Iodine
A solution of iodine turns blue-black in the presence of starch.
Digestion
The breakdown of large insoluble food molecules into smaller soluble ones.