GAS EXCHANGE

63
Created on By buzzerkings

Gas Exchange

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Vocal cords are stretched across:

2 / 63

Total inside capacity of lungs:

3 / 63

 Which of the following shows maximum solubility in blood plasma? 

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Which of the following condition is responsible for increase in ventilation rate?

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During expiration, the diaphragm becomes:

6 / 63

The number of oxygen atoms that can bind with haemoglobin are:

7 / 63

What is the residual volume of air which always remains inside the lungs of human:

8 / 63

 Partial pressure of O2 in alveolar sacs, during inhalation, is:

9 / 63

Which of the following incorrectly explains the binding of inorganic component in structures found in erythrocytes?

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 Rings present in trachea which prevent it from collapsing and keep the air passage way open, are:

11 / 63

What is true about haemoglobin?

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 In heavy smokers, the alveoli become enlarged and damaged which reduces the surface area for the exchange of respiratory gases. This condition is called: 

13 / 63

All are respiratory disorders except:

14 / 63

Trachea lies ____to the oesophagus. 

15 / 63

How many functional pairs of vocal cords are present in humans?

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In addition to secreting the surfactant , the alveolar cells serve as:

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The respiratory bronchioles terminate in elongated airways called:

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  _____are folds of tissue within the larynx, creates sounds when vibrate. 

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Surfactant is present in:

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 In humans, the respiratory center is: 

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The characteristics red color of hemoglobin is due to:

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Haemoglobin actively participates in transport of CO2:

 

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The amount of CO2 in pulmonary artery is:

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The binding capacity of haemoglobin is greater than myoglobin by:

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The epithelium of alveoli is:

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The function of nasal cavity is:

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During inspiration, the diaphragm:

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The oxygen content of fresh air is about.

29 / 63

If you hold your breath for a long time, CO2 levels are likely to and the pH of body fluids is likely to

30 / 63

Which of the following factors does not alter the rate of breathing by influencing the chemoreceptors in medulla oblongata, aorta and carotid artery?

31 / 63

O2 pressure in cells or tissues is:

32 / 63

Find out the incorrect statement: 

33 / 63

Which energy is consumed in breathing?

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All of the following can bind to haemoglobin except:

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Which of the following is false regarding to haemoglobin?

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 Amount of oxygen absorbed by haemoglobin at 115mmHg per 100 ml of blood is: 

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The chemical nature of surfactant is:

38 / 63

Most of the CO2 in the blood is carried as/by:

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Which of the following has maximum oxygen carrying capacity?

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 Which of the following component of inhaled air is variable depending upon external environment? 

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During exercise, the breathing rate may rise to

42 / 63

 In reduced form, hemoglobin carries:

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 All of the following occurs due to presence of carbon dioxide in blood except

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Which one of these shows the path of blood after it leave the lungs? 

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All of the following facilitates the release of O2 from haemoglobin except;

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 Which of the following play passive role during breathing?

47 / 63

Partial pressure of oxygen is maximum in:

48 / 63

 During inspiration fresh air moves in, which has high percentage of:

49 / 63

Breathing is a mechanical process consisting of:

50 / 63

Which of the following correctly describes the binding affinities of gases with haemoglobin?

51 / 63

A sheet of skeletal muscles forming the floor of chest cavity is called:

52 / 63

Each air sac consist of several microscopic alveoli which are: 

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Functional units of lungs are:

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Bronchioles are made up of mainly: 

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Bronchioles are cartilage less tubules having largest diameter of: 

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 A cavity bounded by ribs and diaphragm is called: 

57 / 63

Opening from nose to throat is closed by:

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 A muscularly controlled cartilage, hinge-like action and serves as a lid which automatically covers the opening of the larynx is called: 

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 A complex  cartilaginous structure surrounding the upper end of the trachea:

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Which of the following function is not associated with nasal cavity?

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Diffusion of respiratory gases is inversely proportional to:

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All of the following are lined with mucous membrane of ciliated epithelium except:

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 At normal alveolar ventilation, the respiratory center is stimulated by: ‘

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