Science Quiz: Physiology Of Gas Exchange
.
- 1.
Air comprises the following components?- A.
Oxygen, Carbon Dioxide, Natural Gas and Helium
- B.
Oxygen, Carbon Dioxide, Nitrogen and Natural Gas
- C.
Oxygen, Carbon Dioxide, Water Vapour and Natural Gas
- D.
Oxygen, Carbon Dioxide, Nitrogen and Water Vapour
- 2.
What percentage of Oxygen makes up air?
- A.
31%
- B.
40%
- C.
21%
- D.
50%
- 3.
What units are used to describe the measure of Atmospheric Pressure?
- A.
Cm (Centimetres)
- B.
MmHg (millimetres of mercury)
- C.
Mm (Millimetres)
- D.
Ng (Nanograms)
- 4.
Gaseous exchange occurs at alveoli and cellular level using what principle?
- A.
Diffusion
- B.
Osmosis
- C.
Transport
- D.
Convection
- 5.
External respiration can be described as?
- A.
The exchange of gases at a cellular level within the body
- B.
The active process of inhalation
- C.
The exchange of gases at alveoli level within the lungs
- D.
The passive process of exhalation
- 6.
Oxygen is transported in the blood by binding to?
- A.
White Blood Cells
- B.
Plasma
- C.
Haemoglobin
- D.
Water
- 7.
How is carbon dioxide transported in the blood?
- A.
By combing with water in the plasma to produce bicarbonate
- B.
Binding to white blood cells
- C.
Binding to plasma
- D.
Binding with haemoglobin
- 8.
The diffusion of O2 and CO2 at a cellular level is described as?
- A.
Internal respiration
- B.
External respiration
- C.
Gas transfer
- D.
Gas transport
- 9.
Which vessel(s) carry deoxygenated blood to the lungs?
- A.
Left and Right Pulmonary Arteries
- B.
Pulmonary Capillaries
- C.
Superior and Inferior Vena Cava
- D.
Right and Left Pulmonary veins
- 10.
Oxygen rich blood is pumped out of which chamber of the heart into the aorta?
- A.
Right Ventricle
- B.
Left Ventricle
- C.
Right Atrium
- D.
Left Atrium
Questions: 10 | Attempts: 71171 | Last updated: Mar 22, 2022
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