NEET BIOLOGY

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: -Active uptake of ions is one of the most important features of life processes. It is accomplished through the coupling of diffusion fluxes to the exergonic reactions that take place in the bulk of the membrane. The transfer of ions occurs at the expense of the free energy liberated in chemical reactions.

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.