Respiratory System Physiology Test 04 Online Preparation

1. Oxygen in the blood is transported mainly by?

A. Blood plasma

B. WBCs

C. RBCs

D. Platelets

2. Which of these statements are correct?

A. All animals need oxygen for their respiration

B. All animals take oxygen from water or air through lungs or gills

C. All of the animals need a medium for cellular respiration

D. Oxygen is transported in all animals by blood

3. Sudden deep inspiration may be due to?

A. Either increase in the concentration of oxygen of decrease in concentration of carbondioxide

B. Increase in concentration of carbondioxide

C. Decrease in the concentration of carbondioxide

D. Increase in the concentration of oxygen

4. The impulse for voluntary forced breathing starts in the?

A. Vagus nerve

B. Cerebrun

C. Spinal cord

D. Medulla

5. How can combining of haemoglobin with oxygen in the lungs be promoted?

A. By increasing the concentration of CO2 in blood

B. By decreasing the concentration of oxygen in blood

C. By increasing the concentration of oxygen in blood

D. By inducing CO in the blood

6. Oxygen content in our expiratory air is?

A. 4%

B. 16%

C. 20%

D. 25%

7. Which of these factors influence our respiratory centre?

A. CO2

B. Water vapour

C. Both (a) & (b)

D. None of these

8. Major portion of CO2 formed during cellular respiration is transported to lung in form of?

A. H2CO3

B. In combination of HbCO2

C. As free CO2

D. HCO3

9. Oxygen carrier in the blood of vertebrate is?

A. All of these

B. Haemoglobin can combine with oxygen

C. Cytochrome

D. Haemocyanin

10. Respiratory centre in medulla is directly affected by?

A. Arterial blood entering it

B. Venous blood entering it

C. Arterial blood leaving it

D. Venous blood leaving it

Respiratory System Physiology Test 04 Online Preparation

Respiratory System Physiology Test 04 Online Preparation

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