Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Year 8 > 8C Breathing and respiration > Flashcards

8C Breathing and respiration Flashcards

1
Q

Name 3 poisonous chemicals in tobacco smoke

A

Nicotine – the addictive agent in tobacco smoke
Carbon monoxide - found in car exhaust
Tar - particulate matter in cigarette smoke

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name 3 things about the alveoli which increase the diffusion of gases from blood to air space (or the other way around)

A

Large surface area, thin wall, good blood supply

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How do you test for carbon dioxide

A

Lime water goes cloudy when carbon dioxide is bubbled through it.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is emphysema?

A

A disease cased by smoking which leaves the sufferer breathless. (The alveoli have lost surface area as the folds disappear.)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the alveoli?

A

Air sacs in your lungs where exchange (swapping) of oxygen and carbon dioxide happens.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Why does your trachea have rings of cartilage?

A

To keep your airway open

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What problem does tar cause in smokers?

A

Increased risk of lung cancer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name the two gases exchanged at the alveoli

A

Oxygen and carbon dioxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why does your heart need to beat faster when you exercise?

A

The heart pumps blood around the body. The blood carries food and oxygen to cells so they can respire and release more energy.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is anaerobic respiration?

A

A type of respiration that does not need oxygen.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is a ciliated epithelial cell?

A

A special skin cell that has cilia (filament like hairs which wave like anemones!) growing on its surface. They keep the airways clean.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How does your voice box make your voice?

A

The ligaments inside it vibrate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is muscle fatigue?

A

When you have to stop exercising a muscle group because it hurts. This is caused by the build up of lactic acid.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the name of the tube which takes air to the lungs?

A

The trachea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Why is carbon dioxide a dangerous gas?

A

It stops red blood cells carrying so much oxygen and so reduces respiration/ energy release.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is asthma?

A

An illness where the muscles in your breathing tubes contract making it hard to breathe out.

17
Q

Name the part of the skeleton that protects your lungs.

A

Ribs

18
Q

What is oxygen debt?

A

After strenuous exercise, the body needs

extra oxygen to remove lactic acid.

19
Q

What parts of your body are used in ventilation?

A

Your ribs are lifted up and out by your intercostal muscles (This is breathing). Your diaphragm contracts and becomes flatter. This sucks air into your nose and down your trachea into your lungs. You relax and gravity brings your ribs down.

20
Q

What is mucus?

A

A sticky liquid that you may call snot!

21
Q

What problem does nicotine cause in smokers?

A

It makes smoking addictive (and raises blood pressure so also increases the risk of heart attacks)

22
Q

Where do fish exchange gases?

A

Their gills

23
Q

What is ventilation?

A

Taking air into your lungs.

24
Q

How does your pulse change when you exercise?

A

It gets faster as your heart beats faster.

25
Q

What part of the blood carries carbon dioxide?

A

The liquid part of blood called plasma (a straw yellow clear liquid)

26
Q

What part of the blood carries oxygen?

A

Red blood cells.

27
Q

What is the word equation for anaerobic respiration?

A

glucose → lactic acid

28
Q

How does the shape of the alveoli increase the rate of gas exchange?

A

They are folded in on themselves which increases the surface area for gas exchange.

29
Q

How do mucous and cilia keep your lungs clean?

A

Mucus is a sticky doormat in the tubes of the breathing system which traps dirt and dust. The cilia sweeps it away.

30
Q

What is the difference between breathing and respiration?

A

Breathing means the movement of your muscles which make the lungs expand and contract. Respiration is a chemical reaction which happens in your cells.

31
Q

What is the word equation for aerobic respiration?

A

Glucose (or sugar) + oxygen&raquo_space;> carbon dioxide and water

32
Q

Where do plants exchange gases?

A

Their stomata (pores on the underside of leaves)

33
Q

What is the name of the flat sheet if muscle under your lungs (used in ventilation)

A

The diaphragm.

Year 8 (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions