Question

Majority of the minerals are absorbed by active transport because ________.

• A. Minerals are present in the form of ions in the soil
• B. The concentration of minerals is more in the root than soil
• C. Charged particles can not move across cell membranes
• D. All of these

Answer 1

The correct option is D

All of these

All minerals cannot be absorbed passively. Minerals are usually present as charged ions and the concentration of minerals is more in the root than in soil. Hence they require energy in the form of ATP to move against the concentration gradient. Also, the plasma membrane does not allow the movement of charged ions passively.