heart and lungs

Question 1

What is the word equation for respiration?​

Answer 1

Sugar + oxygen  water + carbon dioxide + energy

Question 2

Name 3 harmful chemicals found in cigarette smoke.​

Answer 2

Nicotine, carbon monoxide, tar​

Question 3

What do you use to test for carbon dioxide and what colour does it go if carbon dioxide is present?​

Answer 3

Lime water and it goes milky white if carbon dioxide is present​

Question 4

Why does the left ventricle have a thicker wall than the right ventricle?​

Answer 4

Because the left ventricle has to pump blood to the whole body whereas the right ventricle only has to pump blood to the lungs.​

Question 5

Where are the coronary arteries and what is their function?​

Answer 5

They are in the heart and supply the heart with blood (food and oxygen)​

Question 6

Name 4 things found in human blood?​

Answer 6

Red blood cells, white blood cells, platelets, plasma ​

Question 7

What is the function of platelets?​

Answer 7

To clot blood at wounds​

Question 8

What direction do arteries carry blood?​

Answer 8

Away from the heart​

Question 9

What pathway does air take when you breath in?​

Answer 9

Into the nose  trachea  bronchus  bronchioles  Alveoli​

Question 10

What is the function of red blood cells?​

Answer 10

To carry oxygen​

Question 11

Name the 4 chambers in the heart.​

Answer 11

Left ventricle, right ventricle, left atrium, right atrium​