Module 2: Respiration⚡️

Question 1

What does AEROBIC mean?

Answer 1

Using oxygen/ in the presence of oxygen.

Question 2

What is the word equation for AEROBIC respiration?

Answer 2

Glucose+oxygen>carbon dioxide+water+energy.

Question 3

Which three organ systems must work together in order for our cells to respire?

Answer 3

• Digestive system.
• Circulatory system.
• Respiratory system.

Question 4

What does the digestive system do?

Answer 4

Digestive system - changes large insoluble food molecules into small soluble molecules that are able to be absorbed into the blood stream.

Question 5

What does the circulatory system do?

Answer 5

Circulatory system – carries the small soluble food molecules and oxygen to every cell in our body and takes away unwanted waste

Question 6

What does the respiratory system do?

Answer 6

Respiratory System –oxygen is taken into our bodies via the lungs and carbon dioxide is removed.

Question 7

What is RESPIRATION?

Answer 7

The chemical reaction that releases energy for use in all living cells.

Question 8

What happens when you INHALE?

Answer 8

• the diaphragm contracts and flattens
• the intercostal muscles contract
• ribs move up and out
• the volume in the chest cavity increases
• the air pressure inside the chest cavity and therefore the lungs decreases below atmospheric air pressure.
• air rushes in from higher pressure onside the mouth into the area of lower pressure in the lungs.

Question 9

What happens when you EXHALE?

Answer 9

• the diaphragm relaxes and domes back to its original position.
• the intercostal muscles relax.
• ribs move down and in.
• the volume in the chest cavity decreases.
• the air pressure inside the chest cavity and therefore the lungs increases above atmospheric air pressure.
• air rushes out from a higher pressure inside the mouth into the area of lower pressure in the air around us.

Question 10

What is the amount of oxygen in the air you breathe out and the air you breathe in?

Answer 10

In-21%

Out-16%

Question 11

What is the amount of carbon dioxide in the air you breathe out and the air you breathe in?

Answer 11

In-0.04%

Out-4%

Question 12

What is the amount of nitrogen in the air you breathe out and the air you breathe in?

Answer 12

In-78%

Out-78%

Question 13

What is the amount of water vapour in the air you breathe out and the air you breathe in?

Answer 13

In- a little

Out- a lot

Question 14

What adaptations do ALVEOLI have to carry out gas exchange efficiently?

Answer 14

Alveoli are adapted to carry out gas exchange efficiently

• have thin, moist walls so that gases can pass through them.
• They are also surrounded by many blood capillaries.
• Are very small, only 0.2mm in diameter and give the lungs a spongy texture and an enormous surface area.

Question 15

What is ASTHMA?

Answer 15

A condition caused by irritation of the airways. The narrowed airways result in breathing difficulties.

Question 16

What are the alveoli?

Answer 16

Air sacs in the lungs where gas exchange takes place

Question 17

What is the thorax?

Answer 17

The upper part of the body enclosed inside the rib cage

Question 18

What is the trachea?

Answer 18

The wind pipe

Question 19

What is the bronchus

Answer 19

A branch of the trachea- one goes to each lung

Question 20

What are the bronchioles?

Answer 20

Small tubes that carry air into and out of all the parts of the lungs

Question 21

What is ventilation?

Answer 21

Getting air in and out of the lungs

Question 22

What is gas exchange?

Answer 22

How the gases move into or out of the bloodstream

Question 23

What is Inhaling?

Answer 23

Breathing in (INhaling for in)

Question 24

What is exhaling?

Answer 24

Breathing out (EXhaling for exit)

Question 25

What is diffusion?

Answer 25

Movement of gases from an area where they are in high concentration to an area of lower concentration

Question 26

Name the four main ingredients in a Cigarette:

Answer 26

1. Nicotine
2. Tar
3. Carbon monoxide
4. Ammonia