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WorksheetsIGCSE coordinated biology 8.1 gas exchange
Total questions: 25
Worksheet time: 13mins
Which organs are responsible for ventilation and gas exchange in mammals?
(a)
What is letter J?
(a)
What is letter E?
(a)
Which component of tobacco smoke is addictive?
Nicotine
Tar
Carbon monoxide
Smoke particles
Which component of tobacco smoke paralyses cilia and causes cancer?
Nicotine
Tar
Carbon monoxide
Smoke particles
Which component of tobacco smoke prevents haemoglobin from carrying oxygen efficiently?
Nicotine
Tar
Carbon monoxide
Smoke particles
Which of these diseases can be caused by smoking (Select all that apply)
COPD (chronic obstructive pulmonary disease)
Lung cancer
Coronary heart disease
Diabetes
Sickle cell anaemia
Which cells, found in the trachea and bronchi, make and secrete mucus?
(a)
How do ciliated cells in the trachea protect your lungs from pathogens?
They trap pathogens
They sweep mucus out of the lungs
They kill pathogens
They produce mucus to trap the pathogens
They make you cough up mucus
What is the correct term for a bacterium, fungus or virus that causes a disease?
(a)
Which statements about mucus are true? (Select all that apply)
You only produce mucus when you have an infection
You produce more mucus when you have an infection
Mucus can block airways and make it harder to breathe
Coughing can help shift mucus out of your airways
The cilia sweep mucus back into your lungs
Which of these are features of an efficient gas exchange system are common to lungs AND leaves? (Select all that apply)
Large surface area
Good blood supply
Thin surfaces
Good ventilation with air
Compared to the air we breathe in, the air we breathe out has...
More Oxygen, less carbon dioxide and the same amount of Nitrogen
More Oxygen, less carbon dioxide and more Nitrogen
Less Oxygen, more carbon dioxide and the same amount of Nitrogen
Less Oxygen, more carbon dioxide and no Nitrogen
Which of these gases have a higher concentration in expired air compared to inspired air?
Oxygen
Carbon Dioxide
Nitrogen
Water vapour
Which part of the lungs is where gas exchange occurs?
(a)
How will physical exercise affect your breathing? (Select all that apply)
Increase depth of breathing
Decrease depth of breathing
No effect of depth of breathing
Increase breathing rate
Decrease breathing rate
The diagram shows the exchange of gases in the body during breathing and respiration. What do the letters X and Y represent?
X= lungs Y= Air
X= Lungs Y= Body cells
X= Body cells Y= air
X=Body cells Y= Lungs
The diagram shows someone blowing up a balloon. Aproximately what percentage of the gas in the balloon is carbon dioxide?
0.04%
0.4%
4%
40%
What is the approximate composition of fresh air?
21% O2, 0.04% CO2, 78 %N2
78% O2, 21% CO2, 0.04% N2
78% O2, 0.04 % CO2, 21% N2
16 % O2, 4% CO2, 80 % N2
The diagram shows some ciliated cells from the trachea, what is the function of the parts labelled X?
Detecting stimuli
Gas exchange
Moving mucus
Trapping pathogens
Which row in the table correctly describes the functions of the diaphragm and cilia?
A
B
C
D
Why does carbon dioxide move from X to Y?
The air has a lower concentration of CO2 than the blood
CO2 moves more freely in air than the blood
Carbon dioxide must replace oxygen
Diffusion of CO2 can only go out of the blood
The table shows the rough composition of air breathed out by a mammal. Where did the nitrogen in this exhaled air come from?
It was produced when proteins were broken down in the mammal
It was a product of respiration
It was in the air that they breathed in
It was exchanged for oxygen that was taken into the blood
Which two statements show the effects of smoking cigarettes
1 and 3
1 and 4
2 and 3
2 and 4
What is the name of the protein molecule, found inside the red blood cells, that transports oxygen?
(a)
