Question

In seed germination the first step that occurs is :

• A. Diffusion
• B. Osmosis
• C. Imbibition
• D. All the above

Answer 1

The correct option is C 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. The process of adsorption of water by solid particles of a substance without forming a solution is called imbibition. Water molecules are at constant random motion because of its less viscosity so it has greater kinetic energy. Due to its kinetic energy, water is adsorbed by the surface from higher concentration to lower concentration. The kinetic energy is released as heat.

So, the correct answer is option C.