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WorksheetsRespiration Yr8 Net School
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Pick the statement which is True.
a)
Respiration is breathing in and out.
b)
Plants photosynthesise but do not respire.
c)
During respiration, oxygen is produced.
d)
During respiration, carbon dioxide is produced.
2.
Where does respiration take place?
a)
In our lungs.
b)
In every living cell.
c)
In our bloodstream.
d)
In the mouth.
3.
What are the correct REACTANTS in respiration?
a)
Oxygen + Carbon Dioxide
b)
Glucose + Carbon Dioxide
c)
Glucose + Oxygen
d)
Carbon Dioxide + Water
4.
What are the correct PRODUCTS in respiration?
a)
Carbon Dioxide + Water
b)
Carbon Dioxide + Oxygen
c)
Glucose + Oxygen
d)
Glucose + Carbon Dioxide
5.
How can you test to see if respiration is happening?
a)
Hold a mirror near a person's mouth.
b)
Feel for a pulse.
c)
See if there is a any sugar in the blood.
d)
Pass the produced gas through limewater to see if it is carbon dioxide.
6.
What is the name of these structures in the lungs?
a)
Bronchiole
b)
Alveoli
c)
Trachea
d)
Diaphragm
7.
What do the alveoli do in the lungs?
a)
Pump blood to the heart.
b)
Stop mucus from clogging the lungs.
c)
Gas exchange happens in the alveoli.
d)
Assist the rib muscles to cause breathing.
8.
What is the name of the mechanism that allows gases to move in and out of the bloodstream?
a)
Diffusion
b)
Diffraction
c)
Differentiation
d)
Displacement
9.
What are the tiny blood vessels that allow gas exchange called?
a)
Veins
b)
Arteries
c)
Alveoli
d)
Capillaries
10.
What part does the diaphragm have in breathing?
a)
It replaces the rib muscles.
b)
It doesn't play a part in breathing.
c)
When it contracts, air enters the lungs.
d)
It moves mucus out of the lungs.
11.
In one complete circuit of the body, how many times does a blood cell go through the heart?
a)
Once
b)
Twice
c)
Three times
d)
Four times
12.
Which of these blood vessels carry blood back to the heart?
a)
Veins
b)
Arteries
c)
Capillaries
d)
All of them
13.
What leaks out of the capillaries when they reach the intended cells?
a)
White blood cells
b)
Red blood cells
c)
Carbon dioxide and waste products
d)
Glucose and oxygen
14.
Why is blood in the arteries redder than blood in the veins?
a)
It is closer to the heart
b)
It carries more oxygen
c)
It is moving faster
d)
It doesn't have waste products in it
15.
Which of these cannot be caused by smoking?
a)
Cancer
b)
Emphysema
c)
Bronchitis
d)
All of them can be caused by smoking
16.
What do the cilia in the airways do that can be damaged by smoking?
a)
Move mucus away from the lungs
b)
Help with transport of oxygen
c)
Diffuse oxygen to the blood
d)
Help you breathe in and out
17.
What is emphysema (which can be caused by smoking)?
a)
Damage to the heart muscle.
b)
Inflammation of the breathing tubes.
c)
Destruction of the alveoli which enable gas exchange.
d)
Cancer of the lungs.
18.
Pick the true statement.
a)
Respiration needs carbon dioxide to happen
b)
If there is not enough oxygen respiration cannot take place
c)
Respiration can happen with or without oxygen
d)
Respiration is more efficient without oxygen
19.
What does ANAEROBIC respiration produce in humans?
a)
Ethanol
b)
Lactic acid
c)
More energy
d)
Carbon dioxide + water
20.
Pick the statement which is FALSE
a)
I am respiring right now
b)
There are trillions of cells in my body
c)
All living things respire
d)
Plants don't respire
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