ST.6 transport Systems of Animals N5 (MO)

Question 1

What does blood contain?

Answer 1

Blood contains red blood cells, white blood cells and plasma and transports oxygen, carbon dioxide and nutrients

Question 2

Describe red blood cells

Answer 2

Red blood cells have no nucleus, biconcave shape, and containing haemoglobin

Question 3

What does the specialisation of red blood cells do?

Answer 3

The specialisation of red blood cells aids them to transport oxygen in the form of oxyhaemoglobin

Question 4

Describe white blood cells

Answer 4

White blood cells are part of the immune system and are involved in destroying pathogens

Question 5

What are phagocytes and lymphocytes?

Answer 5

Phagocytes and lymphocytes are white blood cells. Phagocytes carry out phagocytosis and some lymphocytes produce antibodies to destroy pathogens

Question 6

List the heart anatomy

Answer 6

Left ventricle, right ventricle, left atrium, right atrium, aorta, vena cava, pulmonary artery, pulmonary vein, valves and coronary arteries

Question 7

Describe arteries

Answer 7

Arteries have thick, muscular walls, a narrow central channel and carry blood under high pressure away from the heart

Question 8

Describe veins

Answer 8

Veins have thinner walls, a wider channel and carry blood under low pressure back towards the heart. Veins contain valves to prevent backflow of blood

Question 9

Describe capillaries

Answer 9

Capillaries are thin walled and have a large surface area, forming networks at tissues and organs to allow efficient exchange of materials