NEET BIOLOGY

Detailed explanation-1: -It shows nitrogen changing from organic matter in the soil, to bacteria, to plants and back to organic matter. Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow.

Detailed explanation-2: -Organic nitrogen compounds The process of decay of dead remains is also known as putrefaction. Decay, or putrefying, bacteria and fungi break down organic nitrogen compounds in dead remains, faeces and urine to give ammonia. In the soil the ammonia forms ammonium ions. Nitrogen compounds. in plants.

Detailed explanation-3: -Decomposition is a complex process. Organic matter is broken down into carbon dioxide and the mineral forms of nutrients like nitrogen. It is also converted into fungi and bacteria through these organisms feeding on the organic material and reproducing.

Detailed explanation-4: -Nitrogen is found in soils and plants, in the water we drink, and in the air we breathe. It is also essential to life: a key building block of DNA, which determines our genetics, is essential to plant growth, and therefore necessary for the food we grow.

Detailed explanation-5: -It is carried out by denitrifying bacteria in the soil. These bacteria are anaerobic and live in swampy soil or deep down in the soil (where water accumulates).