The surfactant lining the fluid of lung alveolar epithelium decreases the

Surfactant lining the fluid on alveolar epithelium

A

Prevents the collapse of the alveoli

B

Increases the compliance of the lungs

C

Reduces the surface tension of the alveolar fluid

D

Increases the elastic recoil pressure of alveoli

E

Increases the work of breathing

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

Bernoulli's equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli's equation?
1. Fluid flow is frictionless & irrotational
2. Fluid flow is steady
3. Fluid flow is uniform & turbulent
4. Fluid is compressible
5. Fluid is incompressible

A

1, 3, 4

B

2, 4, 5

C

1, 2, 5

D

1, 4, 5

The skin, the lining of the mouth, the lining of the blood vessels, lung alveoli and kidney tubules are all made of which type of tissue?

A

Epithelial tissue

B

Connective tissue

C

Muscular tissue

D

Nervous tissue

The alveolar epithelium

A

Have type I and type II cells that are joined by functional complexes

B

Is closely associated with capillary endothelium

C

Rests on a well developed basement membrane

D

Contains ciliated cells

E

Has type I cells that contain multilamellar bodies of surfactant

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

$$\frac{{{\text{PC}}}}{{100{\text{L}}}}$$

Three pipes P, Q and R can fill an empty tank in (x - 25) minutes, 100 minutes and (x + 25) minutes, respectively. All the three pipes are opened, then the time taken to fill the tank is 300/19 minutes. If pipes P, Q and R discharge chemical solution hydrocarbon, water and surfactant, respectively. Then, what is the proportion of the surfactant solution in the liquid of the tank in 10 minutes?

A

4/19

B

4/21

C

4/25

D

7/30

How much percentage (by volume) of surfactant is generally used in the surfactant compatibility test?

A

2 or 3 %

B

4 or 5 %

C

10%

D

0.1 to 0.2 %

How is the rate of transpiration affected by decreasing humidity and by decreasing light intensity? Decreasing humidity Decreasing light intensity (a). Decreases Decreases (b). Increases Decreases (c). Increases Increases (d). Decreases Increases

A

(a)

B

(b)

C

(c)

D

(d)

Consider the following statements regarding animal tissues: 1. All complex animals consist of only four basic types of tissues. 2. There are two types of epithelial tissues namely simple epithelium and compound epithelium. Which of the statements given above is/are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

The surfactant lining the fluid of lung alveolar epithelium decreases the

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