Biology - transport in humans

Question 0

Which ventricle of the heart has the thicker wall?

Answer 0

Left Ventricle

-contains more muscle as it pumps blood round the body

Question 1

What is blood made up of?

Answer 1

Red blood cells
White blood cells
(Phagocytes, lymphocytes)
Platelets
Plasma

Question 2

What is the function of the valves?

Answer 2

Prevent the back flow of blood

Question 3

Describe an experiment to investigate the effect of exercise on your heart rate?

Answer 3

MEASURE THE HEART RATE AT REST
THEN AFTER EXERCISE
-it will be higher after exercise

Have students of the same age, gender and sex
Use a heart rate monitor
Intensity of exercise should be the same
Repeat the experiment
Calculate a mean

Question 4

What is the function of an artery?

Answer 4

Transports blood
Under high pressure
Away from the heart

Question 5

What adaptions does an artery have?

Answer 5

Thick muscular elastic walls
Narrow lumen
No valves

Question 6

What is the function of a vein?

Answer 6

Transports blood
Under low pressure
Towards the heart

Question 7

What adaptions does a vein have?

Answer 7

Thick muscular elastic wall
Wider lumen
Valves present

Question 8

What is the function of a capillary?

What adaptions does it have?

Answer 8

Function: Exchange of substances with the body tissues

Adaption: Thin permeable wall