Sec 2 G2 Transport System

The ________ transport blood away from the heart.

The ________ transport blood towards the heart.

The __________ allows for exchange of substances to occur.

Arteries carry blood rich in _________.

• oxygen

• carbon dioxide

• waste materials

• nutrients

Veins carry blood rich in _________.

• oxygen

• carbon dioxide

• waste materials

• nutrients

Carbon dioxide is produced by cells in the body. There is a ____________ concentration of carbon dioxide in the cells than that in the blood in blood capillaries. 

• higher

• lower

Carbon dioxide diffuses from cells in the body into blood in the  _________. 

• arteries

• veins

• blood capillaries

The heart pumps blood rich in carbon dioxide to the _____________, which removes carbon dioxide during exhalation.

• heart

• lungs

• muscles

Red blood cells transport __________.

What is the function of the white blood cell?

• Protect against infection

• Transport oxygen

• Helps to form a clot

• Transports water, digested food, mineral salts and waste products