Related Questions

The surfactant lining the fluid of the lung alveoli increases
A The compliance of the lungs
B Stability of the size of alveoli
C The work of breathing
D Pulmonary capillary filtration pressure
E The elasticity of the lungs
In a sample of 50 people, 19 had type O blood, 22 had type A blood, 7 had type B blood and 2 had type AB blood. If a person is selected randomly, find the probability that the person has neither type A nor type O blood?
A 15/25
B 31/50
C 11/25
D 9/50
Surfactant of lung alveoli
A Contains phospholipids
B Prevents oedema formation in the alveolar wall
C Stabilizes the size of an alveolus
D Reduce surface tension by approximately 30%
E Produces a mononuclear layer
The lung alveoli
A Are connected to each other to equalize air pressure
B Need to reduce their surface tension to prevent collapse
C Are present throughout the respiratory part of the bronchial tree
D Are lined by larger number of type I pneumocytes than type II pneumocytes
E Have epithelium without basal lamina
The late distal convoluted tubules of kidney
A Secrete H+ into tubular lumen
B Form NH4+ ion
C Reabsorb Na+ in exchange of K+
D Reabsorb urea
E Determine the final composition of urine
If L is total length of a canal in kilometers, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is
A $$1000\,{\text{PLC}}$$
B $$\frac{{{\text{PLC}}}}{{1000}}$$
C $$\frac{{{\text{PL}}}}{{1000{\text{C}}}}$$
D $$\frac{{{\text{PC}}}}{{100{\text{L}}}}$$
Many more people who smoke develop lung cancer than do those who do not smoke. In the face of this evidence, how could a cigarette company representative argue against the conclusion that cigarette smoking cause lung cancer? To answer to the question, the representative could most likely say that
A Many things might cause cancer.
B A single cause may be reponsible for both smoking and cancer.
C People have the right to endanger themselves if they choose to do so.
D People may breathe die, but no one accuses breathing of causing death.
While standing, compared to the upper part of the lung, the lower portion of the lung has
A Higher ventilation
B Larger compliance
C Larger size of the alveoli
D Higher ventilation-perfusion ratio
E Higher alveolar PO2
Compared to obstructive lung disease restrictive lung disease has lower
A Functional residual capacity
B Total lung capacity
C Compliance of the lungs
D FEV1/FVC %
E Peak expiratory flow rate (PEF
A case of restrictive lung disease is similar to a case of obstructive lung disease in having lower
A PEFR
B Vital capacity
C Residual volume
D FEV1/FVC
E Total lung capacity

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