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DPD & water Potential

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

If a cells  Ψp\Psi p = 3 bars and its  Ψs\Psi s = -4.5 bars, what is the resulting  Ψ\Psi  ?

a)

-7.5

b)

7.5

c)

-1.5

d)

1.5

2.

The cell from question 1 is placed in a beaker of sugar water with Ψs\Psi s  = -4.0 bars.  In which direction will the net flow of water be?

a)

Out of the cell

b)

Into the cell

c)

Both into and out of the cell

d)

Neither into nor out of the cell

3.

The pressure exerted by the swelling protoplast on the walls of the cell is

a)

Wall pressure

b)

Osmotic pressure

c)

Suction pressure

d)

Turgor pressure

4.

Net movement of water is form

a)

Low DPD to high DPD

b)

High DPD to low DPD

c)

DPD gradient plays no role

d)

None of the above

5.

Which helps in maintaining from and structure of cells

a)

Wall pressure

b)

Turgidity

c)

Atmospheric pressure

d)

D.P.D

6.

O.P of cell can be measured by

a)

Manometer

b)

Photometer

c)

Calorimeter

d)

Plasmolysis

7.

O.P of a solution can be measured by

a)

Photometer

b)

osmometer

c)

Calorimeter

d)

Plasmolysis

8.

When chemical fertilizers are given to plants, the soil is to be thoroughly watered otherwise, the plants get killed because of

a)

Toxic effects of chemical (fertilizers) compounds

b)

Plasmolysis due to high concentration of fertilizers

c)

Failure of physiological processes like photosynthesis and respiration

d)

None of the above

9.

The pressure that prevails in cell due to number of substance dissolved in cell sap is

a)

Wall pressure

b)

Turgor pressure

c)

Osmotic pressure

d)

Diffusion pressure

10.

Water potential is the sum of opposing forces of

a)

Osmotic pressure and diffusion pressure deficit

b)

Solute potential and osmotic potential

c)

Solute potential and pressure potential

d)

Diffusion pressure deficit and turgor pressure