Which of the following is/are essential for imbibitions to take place?

I. Water potential gradient between the absorbent and the liquid imbibed

II. Affinity between the adsorbent and the liquid

1. Only II

2. Only I

3. Both I and II

4. None

Consider the following:

I.    A decrease in pressure on cell exerted by the wall
II.   An increase in water potential of the surroundings
III.  The uptake of solutes by the cell
IV.  An increase in the tension on the surrounding solution

Which of these would contribute to the uptake of water by the cell?

1. I, II, III

2. II, III, IV

3. I, II, IV

4. I, III, IV

What is true for both symplast and apoplast movement of water in plants?

1. An equal rate of transport

2. Being down a potential gradient

3. Assistance by cytoplasmic streaming 

4.Conduction through interconnected protoplasts

In flowering plants, transport over longer distances proceeds through the vascular system and is called
1. Transportation
2. Translocation
3. Transfusion
4. Transmission

Transport of water and minerals is essentially ……a...from roots to stems. Organic and mineral nutrients however, undergo…b…… transport.

Diffusion

Find the wrong option:

Diffusion

Find the wrong one.

Which of the following is not parameter to affect diffusion concentration? 

1. Gradient of concentration 
2. Permeability of the membrane separating them 
3. Temperature, Pressure 
4. Gas constant 

The diffusion of any substance across a membrane depends on 

1. Solubility in proteins 
2. Solubility in carbohydrates 
3. Solubility in lipids 
4. Solubility in glycolipids 

Substances which are soluble in lipids…….a…...But which have a hydrophilic moiety……..b……

1. a- move slowly

2. a- move similarly as that of others

3. b- move faster

4. a- move faster