On the Trails: Nitrogen — an essential element

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Nitrogen is essential for growth and development of living things. It’s involved with almost all aspects of life: in amino acids that constitute protein, in DNA and RNA that control genetic inheritance, in ATP molecules that provide energy for cellular metabolism involved in muscle contraction and nerve impulse propagation, in lots of enzymes that control physiological processes, and in some vitamins (e.g., B complex), and so on. It’s abundant in Earth’s atmosphere, comprising almost eighty percent of all atmospheric gases. But it’s not in a form usable by many organisms, including all the ones we can actually see without a microscope.

This essential element is provided in small quantities

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