NEET BIOLOGY

Detailed explanation-1: -Plant roots generally absorb nutrients from the soil when they absorb water as the nutrients remain dissolved in it. They mainly uptake the nutrients by the diffusion process. Also, they get oxygen from the air through leaves.

Detailed explanation-2: -Micronutrients, including iron, zinc, manganese, and copper, are required in very small amounts. Micronutrients are often required as cofactors for enzyme activity. Mineral nutrients are usually obtained from the soil through plant roots, but many factors can affect the efficiency of nutrient acquisition.

Detailed explanation-3: -Vegetable plant roots absorb nutrients through two distinctly different sequential processes. First, the nutrients must move from the soil to the surface of the plant roots. Second, the nutrients must be able to cross from the outside to the inside of the plant roots.

Detailed explanation-4: -Plants take up essential elements from the soil through their roots and from the air through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.

Detailed explanation-5: -Though their exact needs vary, most plants need three main nutrients to survive: Nitrogen (N), Phosphorous (P), and Potassium (K). These nutrients are commonly abbreviated as NPK, the letters of the elements on the periodic table. Without all three of these nutrients, plants cannot survive.