AP BIOLOGY

Detailed explanation-1: -Most nutrients are absorbed through root hairs near the very tip of the roots. Root hairs are ultra-fine roots that have a large surface area, allowing them to absorb even more water. The majority of plants also partner with different fungi to absorb even more nutrients from the water in the soil.

Detailed explanation-2: -Although all green plants make their food by photosynthesis, they also need to get nutrients from the soil. These dissolve in water and are taken up by the roots of the plant. The most important plant nutrients are nitrogen (N), phosphorous (P), and potassium (K).

Detailed explanation-3: -Diffusion operates by these highly concentrated ions moving as far away from one another as possible, and becoming exposed and available to the plant roots. Phosphate, potassium and zinc are the main nutrient ions moving as a result of diffusion.

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: -Roots are the parts of plants responsible for water and minerals absorption. It is also involved in the anchorage of the plant.