EVERYDAY SCIENCE

Detailed explanation-1: -The ions then move upward through the xylem, to the leaves and other aerial parts of the plant. The absorption of minerals using respiratory energy is called active absorption and is influenced by temperature, oxygen concetration and respiratory poisons.

Detailed explanation-2: -During the active absorption of minerals, ions from the outer space of the cell move into the inner space and it generally occurs against the concentration gradient. Hence it requires metabolic energy and this energy is obtained from the cell’s metabolism either directly or indirectly.

Detailed explanation-3: -Final answer: Active uptake of minerals by root mainly depends on the availability of oxygen.

Detailed explanation-4: -For plants to take up mineral ions, ions are moved into root hairs, where they are in a higher concentration than in the dilute solutions in the soil. Active transport then occurs across the root so that the plant takes in the ions it needs from the soil around it.