Resporatory System

Question 1

Why does air move on and out of the lungs?

Answer 1

So we can gain oxygen and get rid of carbon dioxide

Question 2

What is gas exchange?

Answer 2

Gas exchange is the movement of oxygen from the alveoli into the blood and the movement of carbon dioxide from the blood into the alveoli.

Question 3

What is diffusion?

Answer 3

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration

Question 4

What are the three blood vessels?

Answer 4

Arteries, capillaries and veins are the three blood vessels

Question 5

What are arteries?

Answer 5

Arteries carry blood away from the heart

Question 6

What do arteries split up into and what do these do?

Answer 6

Arteries split up into millions of tiny capillaries which supply blood to all of the individual body cells

Question 7

What do capillaries join back up into and what do these do?

Answer 7

Capillaries join back up into veins which take the blood back to the heart

Question 8

In which of the three blood vessels {Arteries, Capillaries, Veins} does blood travel the fastest?

Answer 8

Blood travels the fastest on the arteries

Question 9

What does the right side of the heart do?

Answer 9

The right side of the heart pumps blood to the lungs

Question 10

After blood leaves the left atrium where does blood go to?

Answer 10

After blood leaves the left atrium blood goes to the left ventricle

Question 11

What three things does the cardiovascular system consist of?

Answer 11

The cardiovascular system consists of heart, blood and blood vessels {capillaries}

Question 12

Where does oxygenation take place?

Answer 12

Oxygenation takes place in the lungs

Question 13

What is the main job of red blood cells?

Answer 13

The main job of red blood cells is carrying oxygen around the body

Question 14

What is aerobic respiration?

Answer 14

Aerobic Respiration is the chemical reaction that makes the body release energy from glucose (sugar in food) using oxygen

Question 15

What are carbon dioxide and water in our bodies?

Answer 15

Waste products

Question 16

What is the chemical equation for respiration?

Answer 16

Glucose + oxygen –> (energy) + carbon dioxide + water

Question 17

What are the four chambers of the heart?

Answer 17

Left ventricle, right ventricle, left atrium, right atrium

Question 18

Where does blood become oxygenated?

Answer 18

Blood becomes oxygenated in the lungs

Question 19

How does breathing in and out work?

Answer 19

When the diaphragm contracts, the ribs expand, creating more space as the ribs expand. Air pressure in the lungs becomes lower than their pressure outside, driving air into the lungs as a result.

Question 20

Where is oxygen processed in the body and then where does it go after that?

Answer 20

Oxygen goes to the lungs, where the blood is then oxygenated

Question 21

Where is glucose processed in the body and then where does it go after that?

Answer 21

Glucose is processed in the small intestine, and is taken out of blood

Question 22

Where is carbon dioxide processed in the body?

Answer 22

Carbon dioxide is processed in the lungs, where it is extracted and then exhaled out of the body

Question 23

Where is water processed in the body?

Answer 23

Water is processed in the lungs as water vapour and is also excreted

Question 24

What is respiration?

Answer 24

Respiration is a chemical reaction that happens in every cell in your body

Question 25

What happens if respiration does not take place in a cell?

Answer 25

If respiration does not happen in a cell, that cell will die

Question 26

Glucose –> ?

Answer 26

Glucose –> lactic acid + (energy)

Question 27

What is EPOC?

Answer 27

Lactic acid + oxygen –> water + carbon dioxide