Nutrition, digestion and excretion class clips
14 learner guides + 8 class clips
Breathing and circulation
An explanation of the process of breathing and how blood is transported around the body.
Cells, tissues and organs in plants
Specialised cells in plants are organised into tissues, organs and systems.
Digestive enzymes
The roles of different enzymes in digestion are discussed with an overview of digestion.
How the brain's pituitary gland controls water concentration of the blood
A description of how parts of the brain control water concentration of the blood.
Nutrient groups and digestion
The way we digest food is defined and the seven main nutrient groups are described.
The cell membrane
The process of diffusion is explained with reference to a cell membrane.
The digestive system
Animated description of the digestive process and the structures of the digestive system.
The palisade cell
The palisade cell, its structure, function and location.
14 learner guides
We have a selection of learner guides