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Getting energy out of your food when you eat

Aerobic Respiration

Energy is made using oxygen

Anaerobic Respiration

Energy is made without oxygen


When a cell is full of water


When a cell has lost water


Diffuses from a high concentration to a low concentration through a partially permeable membrane


They exchange materials between the blood and other body cells.


Transport substances e.g. water, carbon dioxide, glucose

Red Blood Cell

Molecule inside the cell which carries the oxygen

White Blood Cells

Defence against pathogens


Engulf pathogens and digests them


Produces antibodies that stick to pathogens


They are small fragments of cells which help the blood clot a wound

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