Biology Quiz: Take The Respiratory System Trivia Questions!
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The respiratory system is a biological system made up of specific organs used for gas exchange in animals and plants. The anatomy and physiology that make this system vary greatly. It depends on the size of the organism, the environment in which it lives, and it’s evolutionary history. Designed to pull oxygen from the air through the lungs, it enters the bloodstream and expels carbon dioxide. Take a deep breath and take the quiz.
- 1.The functions of the respiratory system are?
- A.
Extract oxygen form the atmosphere
- B.
Excrete water and Co2
- C.
Maintain pH levels of the blood
- D.
Ventilate the lungs
- E.
Keep the heart beating
- 2.Inspired air contains approximately?
- A.
78% nitrogen
- B.
21% oxygen
- C.
0.04% C02
- D.
1% inert gases
- E.
Water vapour (variable)
- F.
16% oxygen
- G.
4% Co2
- 3.Expired air contains approximately?
- A.
79% nitrogen
- B.
16% oxygen
- C.
4% C02
- D.
1% inert gases
- E.
Water vapour (variable)
- F.
20% oxygen
- G.
0.04% C02
- 4.All of the following make up the respiratory tract except?
- A.
Diaphragm
- B.
Nose
- C.
Pharynx
- D.
Larynx
- E.
Trachea
- F.
Bronchi
- G.
Bronchioles
- H.
Alveolar ducts
- I.
Alveoli
- 5.The larynx is protected by the epiglottis that shuts when food or fluids are being swallowed and opens for breathing. Does this mechanism still work in a unconscious patient?
- A.
No
- B.
Yes
- 6.Which lung has 3 lobes?
- A.
The right
- B.
The left
- 7.Which network surrounds the alveoli?
- A.
Capillaries
- B.
Lungs
- C.
Nerves
- D.
Blood
- 8.An exchange of gases happens in 2 places?
- A.
True
- B.
False
- 9.The average resp rate of a adult at rest is between?
- A.
10 to 20
- B.
12 to 25
- C.
15 to 30
- D.
30 to 40
- 10.Respiratory compromise can be categorised in to?
- A.
Obstruction of air passages
- B.
Chest and lung trauma
- C.
Paralysis
- D.
Deoxygenated atmosphere
- E.
Lung disease and illness
- F.
Heart attack
- 11.Respiratory conditions cause hypoxia in three ways?
- A.
True
- B.
False
- 12.Water vapour is expired from the lungs?
- A.
True
- B.
False
- 13.The nose contains ciliated columnar epithelium?
- A.
True
- B.
False
- 14.The cricoid ring is incomplete posteriorly?
- A.
True
- B.
False
- 15.The alveoli walls are classed as semi–permeable membrane?
- A.
True
- B.
False
- 16.The pharynx plays a part in the sense of taste?
- A.
True
- B.
False
- 17.The trachea is composed of c-shaped cartilage?
- A.
True
- B.
False
- 18.
![The trachea is composed of approx how many pieces of C shape cartilage? - ProProfs]( "The trachea is composed of approx how many pieces of C shape cartilage?")
The trachea is composed of approx how many pieces of C shape cartilage?- A.
16 to 20
- B.
12 to 15
- C.
10 to 25
- D.
25 to 30
- 19.The pharynx is approximately how long?
- A.
13 cm
- B.
14 cm
- C.
15 cm
- D.
16 cm
- E.
17 cm
- 20.Air exchange within the alveoli takes place by?
- A.
Diffusion
- B.
Transfusion
- 21.Hypercarbia means lack of carbon dioxide in the blood?
- A.
True
- B.
False
- 22.
![The trachea of an average sized adult is? - ProProfs]( "The trachea of an average sized adult is?")
The trachea of an average sized adult is?- A.
10 - 12 cm long
- B.
16 - 18 cm long
- C.
20 - 22 cm long
- D.
24 - 28 cm long
- 23.In the lungs there are approximately how many alveoli?
- A.
300 million
- B.
100 million
- C.
200 million
- D.
400 million
- E.
500 million
- 24.Pulmonary ventilation is which law?
- A.
Boyles Law
- B.
Dalton's Law
- 25.How many litres of air can the lungs hold?
- A.
6 litres
- B.
5.3 litres
- C.
3.5 litres
- D.
3 litres
- E.
2 litres
- 26.How many ml of oxygen do the lungs use?
- A.
500ml
- B.
750ml
- C.
2500ml
- D.
205ml
- E.
250ml
- 27.Internal respiration takes place in the lungs?
- A.
True
- B.
False
- 28.In a healthy adult a person breaths in approximately 500 ml of air per respiration. How much actually reaches the alveolar sac's found in the lungs?
- A.
350ml
- B.
50ml
- C.
150ml
- D.
163 ml
- E.
400ml
- F.
300ml
- G.
450ml
- 29.Which receptor monitors CO2 and O2 in the blood?
- A.
Chemoreceptors
- B.
Baroreceptors
- 30.At rest how many milliliters of 02 does the body cells use each minute?
- A.
200ml
- B.
100ml
- C.
300ml
- D.
400ml
- E.
500ml
- F.
525ml
- G.
700ml
- 31.CO2 is over (?) times as strong as the binding of 02 to haemoglobin.
- A.
200
- B.
100
- C.
5
- D.
10
- 32.In a embryo when does the respiratory system begin to develop?
- A.
Week 4
- B.
Week 8
- C.
Week 1
- D.
Week 6
- E.
Week 3
- F.
Week 22
- G.
Week 30
- 33.Each lung is enclosed in a single protective membrane called the pleural membrane?
- A.
True
- B.
False
- 34.Which bronchus is longer?
- A.
Left
- B.
Right
- 35.Which bronchus is wider?
- A.
Right
- B.
Left
- 36.The respiratory system maintains the pH levels of the blood. What should the level be?
- A.
7.4
- B.
1.0
- C.
8.9
- D.
6.9
- 37.What is the most important muscle of inhalation?
- A.
Diaphragm
- B.
Heart
- C.
Abdo
- D.
Lungs
- E.
Chest muscles
- 38.The diaphragm is dome is shape, during normal contraction it descends about 1cm. In strenuous breathing it may descend?
- A.
10 cm
- B.
6 cm
- C.
5 cm
- D.
3 cm
- 39.During inhalation the intercostal muscles?
- A.
Contract
- B.
Relax
- 40.Blood circulation in the lungs is called?
- A.
Pulmonary circulation
- B.
Systemic circulation
- 41.The alveoli are lined with a substance called?
- A.
Surfactant
- B.
Oxygen
- C.
Muscle
- D.
Capillaries
- 42.How many lobes does the left lung have?
- A.
2
- B.
4
- C.
3
- D.
5
- E.
1
- 43.In a adult the trachea is approximately (?) in diameter.
- A.
2 - 1/2 cm
- B.
1 - 1/2 cm
- C.
1 cm
- D.
3 cm
- E.
3 - 1/2 cm
- F.
4 - 1/2 cm
- G.
4cm
- 44.In adults what percentage of air remains in the upper airway passages?
- A.
30%
- B.
5%
- C.
10%
- D.
20%
- E.
60%
- 45.The anatomical dead space includes the trachea & larger bronchi?
- A.
True
- B.
False
- 46.Ventilation is the process of moving air in and out of the lungs?
- A.
True
- B.
False
- 47.Inspiration is the process of moving air out of the lungs?
- A.
True
- B.
False
- 48.How many parts of the brain are responsible for respirations?
- A.
4
- B.
1
- C.
2
- D.
3
- E.
5
- 49.Stretch receptors in the lungs are responsible for the Hering-Breuer reflex which causes you to take deep breaths?
- A.
True
- B.
False
- 50.Chemoreceptors can be found in the heart?
- A.
True
- B.
False
- 51.Chemoreceptors detect changes every minute in the?
- A.
PCO2 levels
- B.
02 levels
- 52.Chemoreceptors send signals to the respiratory centres via?
- A.
Glossopharyngeal nerve
- B.
Vagus nerve
- C.
Phrenic nerve
- 53.Every living cell in the body requires an interruptible supply of oxygen?
- A.
True
- B.
False
- 54.There are two types of respiration?
- A.
True
- B.
False
- 55.External respiration is the exchange of gases between the lungs and the blood?
- A.
True
- B.
False
- 56.Internal respiration is the exchange of gases between the blood and the cell tissues?
- A.
True
- B.
False
- 57.Approximately what percentage of the body's total oxygen is bound to haemoglobin?
- A.
97%
- B.
80%
- C.
88%
- D.
94%
- E.
92%
- F.
95%
- 58.Apnoea means difficult or laboured breathing?
- A.
True
- B.
False
- 59.How many lobes does the right lung have?
- A.
2
- B.
4
- C.
3
- D.
5
- E.
1
- 60.Emphysema is where the lung tissues lose their elasticity?
- A.
True
- B.
False
- 61.Emphysema patients have difficulty in exhaling?
- A.
True
- B.
False
- 62.In chronic bronchitis the bronchial muscle glands secrete excess mucous?
- A.
True
- B.
False
- 63.Emphysema directly affects the upper respiratory passages?
- A.
True
- B.
False
- 64.The medulla oblongata regulates the respiratory system?
- A.
True
- B.
False
- 65.The respiratory system contains receptors for the sense of smell?
- A.
True
- B.
False
- 66.The alveoli are lined with a substance know as?
- A.
Surfactant
- B.
Oxygen
- C.
Muscle
- D.
Capillaries
- 67.The upper airway is from nose to the pharynx?
- A.
True
- B.
False
- 68.Atmospheric pressure (at sea level) is?
- A.
760 mmHg
- B.
800 mmHg
- C.
650 mmHg
- D.
764 mmHg
- 69.Which law applies to mixture of gases?
- A.
Dalton's law
- B.
Henry's law
- C.
Boyle's law
- 70.Which law deals with gases and solutions?
- A.
Dalton's law
- B.
Henry's law
- C.
Boyle's law
- 71.Gases move from a lower region of pressure to a region of high pressure?
- A.
True
- B.
False
- 72.Respiratory volumes & capacities Q: Tidal volume in a adult is?
- A.
500 mL
- B.
3100 mL
- C.
1200 mL
- D.
3600 mL
- E.
4800 mL
- F.
2400 mL
- 73.Respiratory volumes & capacities Q: Inspiratory reserve volume in a adult is?
- A.
500 mL
- B.
3100 mL
- C.
1200 mL
- D.
3600 mL
- E.
4800 mL
- F.
2400 mL
- 74.Respiratory volumes & capacities Q: Expiratory reserve volume in a adult is?
- A.
500 mL
- B.
3100 mL
- C.
1200 mL
- D.
3600 mL
- E.
4800 mL
- F.
2400 mL
- 75.Respiratory volumes & capacities Q: Residual volume in a adult is?
- A.
500 mL
- B.
3100 mL
- C.
1200 mL
- D.
3600 mL
- E.
4800 mL
- F.
2400 mL
- 76.Respiratory volumes & capacities Q: Inspiratory capacity in a adult is?
- A.
500 mL
- B.
3100 mL
- C.
1200 mL
- D.
3600 mL
- E.
4800 mL
- F.
2400 mL
- 77.Respiratory volumes & capacities Q: Vital capacity in a adult is?
- A.
500 mL
- B.
3100 mL
- C.
1200 mL
- D.
3600 mL
- E.
4800 mL
- F.
2400 mL
- 78.Respiratory volumes & capacities Q: Functional residual in a adult is?
- A.
500 mL
- B.
3100 mL
- C.
1200 mL
- D.
3600 mL
- E.
4800 mL
- F.
2400 mL
- 79.In total how many nasal conchae can be found in the nose?
- A.
6
- B.
3
- C.
2
- D.
4
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