AP BIOLOGY

Detailed explanation-1: -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-2: -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.

Detailed explanation-3: -The nitrogen cycle matters because nitrogen is an essential nutrient for sustaining life on Earth. Nitrogen is a core component of amino acids, which are the building blocks of proteins, and of nucleic acids, which are the building blocks of genetic material (RNA and DNA).

Detailed explanation-4: -Nitrogen is an essential element for all forms of life and is the structural component of amino acids from which animal and human tissues, enzymes, and many hormones are made. For plant growth, available (fixed) nitrogen is usually the limiting nutrient in natural systems.

Detailed explanation-5: -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.