Question

Mineral salts absorbed by the roots from the soil are in the form of:

• A. Very dilute solution
• B. Dilute solution
• C. Concentrated solution
• D. Very concentrated solution

Answer 1

The correct option is A Very dilute solution

Minerals are absorbed by plant roots from the soil solution. The minerals are present in the soil in two forms bound form and solution form. In the soil, minerals existing as positively, charged ions are adsorbed on clay particles because clay particles are negatively charged.

Further, minerals are also present dissolved in soil water as a very dilute solution. Hence, most of the minerals are actively absorbed by plant roots in addition to the direct exchange mechanism.

So, the correct answer is option A.