BSC 2010C Chapter : Bio Notes 45 - Anions
Document Summary
Anions are negatively charged ions that are formed when an atom gains one or more electrons. When an atom gains electrons, the number of electrons becomes greater than the number of protons in the nucleus, resulting in a net negative charge. Anions play important roles in many biological processes, as they can interact with other ions and molecules to form ionic bonds and contribute to the stability and function of biological molecules. For example, chloride ions (cl-) are important for the regulation of fluid and electrolyte balance in the body, while phosphate ions (po43-) are important for energy metabolism and the structure of nucleic acids. In addition to their role in biological processes, anions also play important roles in the environment. For example, anions such as nitrate and sulfate can contribute to soil acidity and affect soil fertility. Anions can also interact with cations to form salts, which are important for many geological and environmental processes.
