Transport systems: Animals

Question 1

Animal need transport system to deliver:

Answer 1

Glucose and the gas oxygen to cells and remove carbon dioxide

Question 2

Blood is composed of liquid:

Answer 2

Plasma: red and white blood cells

Question 3

Red blood cells contains:

Answer 3

haemoglobin

Question 4

Red blood cells are specialised to carry out their functions:

Answer 4

• biconcave shape for increased surface area and diffusion
• no nucleus to increase their oxygen carrying capacity
• contain haemoglobin to bind oxygen

Question 5

Cellular defence against:

Answer 5

Pathogens is brought by white blood cells: lymphocytes and Phagocytes

Question 6

Phagocytes carry out phagocytosis:

Answer 6

and engulfs the pathogen

Question 7

Capillaries

Answer 7

on cell thick, large surface area

Question 8

veins

Answer 8

wide channel, thin muscular wall, carries blood under low pressure to heart, valves

Question 9

arteries

Answer 9

narrow channel, thick muscular wall, blood carried away from heart under high pressure

Question 10

Heart is made of:

Answer 10

cardiac muscle

Question 11

Pulmonary Artery is

Answer 11

to carry deoxygenated blood to the lungs

Question 12

pulmonary vein is

Answer 12

to carry oxygenated blood from the lungs to the heart

Question 13

aorta

Answer 13

carries blood to the heart

Question 14

vena cava carries blood:

Answer 14

to the heart