Circulation

Page
3

oxygen diffuses into the cells of the body

oxygen is used for respiration

4 the haemoglobin in the red cells goes back to the lungs to pick up more oxygen

Slide 27

Functions of the blood

Oxygen is carried in the red cells

Carbon dioxide is carried in the plasma

Slide 28

Functions of the blood

digested foods are carried in the plasma

Slide 29

Functions of the blood

Urea (waste substance) is carried in the plasma from the liver to the kidneys

Slide 30

Functions of the blood

Hormones are carried in the plasma

Slide 31

Functions of the blood

Heat is carried in the blood

Slide 32

BIOLOGY TEXT

Read p26-27 and answer question 1 off p27