Mass transport

• This allows the efficient supply of materials over large distances.

• It takes the form of a transport system.

Pg 184: Features of a transport system:

• A suitable medium to carry materials e.g. blood

• A form of mass flow to transport the medium over large distances

• A closed system of vessels• A mechanism for moving the transport

medium and in one direction• A mechanism of controlling the flow

depending on the organisms needs.

The blood system

Pulmonary artery

Pulmonary vein

Aorta

Vena cava1 2

3 4

Oxygenated and deoxygenated blood

• Read page 185 of your text book and complete page 17 and the top of pg 18 of your booklet now

• Answer the summary questions on page 185 of the text book.