Emergence of seedling is due to

Wooden doors swell up and get stuck during the rainy season. This is due to the

phenomenon of

1. imbibition

2. endosmosis

3. capillarity

4. deplasmolysis.

Prehistoric man used which of the following methods to split rocks and boulders?

For imbibition to occur the pre-requisites is/are:

i. Water potential gradient between the adsorbent and the liquid imbibed.

ii. Affinity between the adsorbent and the liquid imbibed.

1. Only i

2. Only ii

3. Both i and ii

4. Neither i nor ii

What is the first step in the germination of a seed?

1. pollination

2. fertilization

3. imbibition

4. hydrolysis of starch and other food reserves

Read the following statements (with respect to imbibition):

A. Special type of diffusion when water is absorbed by solid colloids.

B. There is enormous increase in volume of imbibant.

C. Affinity between the absorbant and absorbate is a pre-requisite.

D. Water movement occurs against the concentration gradient.

1. Only A is correct

2. Only A and B are correct 

3. Only A, B and C are correct

4. All are correct

Which is not an example of imbibition

1.Raisins soaked in water 

2. Wheat grains soaked in water

3. Gram seeds soaked in water

4. A piece of wood soaked in water.

In germination of seed, what is absorbent?

Match the following and choose the correct option.

Codes
1. A-ii, B-iv, C-v, D-i, E-iii

2. A-iii, B-ii, C-iv, D-i, E-v

3. A-i, B-ii, C-iii, D-iv, E-v

4. A-v, B-iv, C-iii, D-ii, E-i

Which of the following is an example of imbibition?

1.  Uptake of water by roothair

2.  Exchange of gases in stomata

3.  Swelling of seed when put in soil

4.  Opening of stomata