AP BIOLOGY

Detailed explanation-1: -Nitrogen is essential for all living things because it is a major part of amino acids. Amino acids are the building blocks of proteins that form enzymes which carry out various enzymatic reactions.

Detailed explanation-2: -Nitrogen is a component of amino acids and urea. Amino acids are the building blocks of all proteins. Proteins comprise not only structural components such as muscle, tissue and organs, but also enzymes and hormones essential for the functioning of all living things. Urea is a byproduct of protein digestion.

Detailed explanation-3: -All living things need nitrogen to build proteins and other important body chemicals. However, most organisms, including plants, animals and fungi, cannot get the nitrogen they need from the atmospheric supply. They can use only the nitrogen that is already in compound form.

Detailed explanation-4: -Nitrogen is required by plants to produce amino acids, proteins, and DNA. Nitrogen is necessary because it is a component of chlorophyll. It is also an essential component of amino acids, which serve as the building blocks of proteins.

Detailed explanation-5: -Nitrogen is needed both by Plants and Animals because it is the major constituent of proteins, vitamins, hormones, etc. Nitrogen is a crucially important component of life. It is an abundant element present in the atmosphere.