AP BIOLOGY

Detailed explanation-1: -Complete answer: Because nitrogen is a key component of amino acids, which are the building blocks of proteins, and nucleic acids, such as DNA, which transmits genetic information to successive generations of organisms, nitrogen is vital for all living things.

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: -Nitrogen is a crucially important component for all life. It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.

Detailed explanation-4: -Amino acids, DNA and RNA have nitrogen element. Therefore, all living cells require nitrogen. Also, nitrogen gas is inert in nature. As the major component of the atmospheric gases is nitrogen gas, it helps in making the environment of the Earth inert, preventing chemical reactions like fire, etc.

Detailed explanation-5: -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.