Breathing and circulation
Duration: 03.03Clip duration: 03.03
An explanation of the process of breathing and how blood is transported around the body.
Cells, tissues and organs in plants
Duration: 01.48Clip duration: 01.48
Specialised cells in plants are organised into tissues, organs and systems.
Demonstrating urine recycling
Duration: 03.20Clip duration: 03.20
A demonstration of how drinking water can be extracted from human urine.
Duration: 02.52Clip duration: 02.52
The roles of different enzymes in digestion are discussed with an overview of digestion.
Enzymes and active sites
Duration: 02.36Clip duration: 02.36
Jon Chase demonstrates the action of the enzyme catalase.
Food as a fuel
Duration: 02.10Clip duration: 02.10
A screaming jelly baby is demonstrated to show the energy content of food.
How the brain's pituitary gland controls water concentration of the blood
Duration: 01.19Clip duration: 01.19
A description of how parts of the brain control water concentration of the blood.
Nutrient groups and digestion
Duration: 03.05Clip duration: 03.05
The way we digest food is defined and the seven main nutrient groups are described.
The cell membrane
Duration: 01.02Clip duration: 01.02
The process of diffusion is explained with reference to a cell membrane.
The digestive system
Duration: 01.38Clip duration: 01.38
Animated description of the digestive process and the structures of the digestive system.
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