Question

Dry seeds when placed in water swell up due to

• A. Imbibition
• B. Absorption
• C. Diffusion
• D. Adsorption

Answer 1

The correct option is A Imbibition

Dry seeds when placed in water swell up due to imbibition. The process of adsorption of water by solid particles of a substance without forming a solution is called imbibition. The water potential gradient between the absorbent (seeds) and the liquid imbibed (water) is essential for imbibition.

Water plays an important in germination. It enters inside the seed by the process of imbibition. Water allows the seed to swell which breaks the seed coat and the seed germinate. Factors like temperature, oxygen etc. are required for germination.

So, the correct answer is option A.