Unit 2 Topic 6 - Transport Systems In Animals

Question 1

What are the 3 main parts of the circulatory system?

Answer 1

• blood vessels
• heart
• blood

Question 2

Which side of the heart pumps deoxygenated blood to the lungs?

Answer 2

Right

Question 3

Which side of the heart pumps oxygenated blood to body cells?

Answer 3

Left

Question 4

What do arteries do?

Answer 4

Carry blood away from the heart

Question 5

What do veins do?

Answer 5

Carry blood back to the heart

Question 6

What do capillaries do?

Answer 6

Carry blood to and from body cells

Question 7

What are the 3 main types of blood vessel?

Answer 7

• artery
• capillary
• vein

Question 8

Why is the wall of the left ventricle thicker than the right ventricle?

Answer 8

Because it has to pump blood to the whole body

Question 9

State the flow of blood

Answer 9

💙Right atrium↓
💙Vena cava↑ 💙 Right ventricle↓
🧍 Body↑ 💙Pulmonary artery↓ ❤️Aorta↑ 🫁Lungs↓
❤️↑ left ventricle← Left atrium ❤️

Question 10

Describe the features of an artery

Answer 10

They have thick muscular walls and a narrow central channel

Question 11

Describe the features of a vein

Answer 11

They have thin walls, a large central channel and contain valved to prevent back flow of blood

Question 12

Describe the features of a capillary

Answer 12

They have thin walls and a large surface area to allow efficient exchange of materials

Question 13

What pigment does red blood cells contain?

Answer 13

Haemoglobin

Question 14

What is the shape of red blood cells described as?

Answer 14

Biconcave

Question 15

Why are red blood cells biconcave ?

Answer 15

To create a large surface area for gas exchange

Question 16

What does haemoglobin do?

Answer 16

Binds with oxygen in the lungs

Question 17

How do phagocytes destroy pathogens?

Answer 17

By carrying out phagocytosis, when they engulf and destroyed pathogens by producing digestive enzymes

Question 18

How do lymphocytes destroy pathogens?

Answer 18

By creating antibodies specific to the antigen