Zinc in biology
Zinc in Biology
Zinc (pronounced /zɪŋk/), from the German word "Zink", is a chemical element with the symbol Zn and atomic number 30. It is a necessary mineral co-factor for more than 300 enzymes related to the synthesis and metabolism of proteins, carbohydrates, lipids and nucleic acids.
Etymology
The name "zinc" is derived from the German word "Zink", which may be related to the Persian word "sing", meaning stone.
Role in Biology
Zinc is an essential trace element, necessary for a wide range of biological processes. It plays a crucial role in cell division, cell growth, wound healing, and the breakdown of carbohydrates. Zinc is also required for the senses of smell and taste. During pregnancy, infancy, and childhood, the body needs zinc to grow and develop properly.
Zinc Deficiency
Zinc deficiency can lead to a variety of health problems, including growth retardation, low blood pressure, retarded bone growth, loss of appetite, and loss of sense of smell and taste. It can also lead to decreased ability to fight off disease and infection, skin sores, and problems with sexual development.
Zinc in Diet
Zinc is found in a wide variety of foods. Oysters contain more zinc per serving than any other food, but red meat and poultry provide the majority of zinc in the average American diet. Other good food sources include beans, nuts, certain types of seafood (such as crab and lobster), whole grains, fortified breakfast cereals, and dairy products.
Zinc Supplements
Zinc supplements are often used as an over-the-counter remedy for fighting colds and symptoms of illnesses. Zinc can also be used in lozenges or in other forms to help reduce the duration and severity of the common cold in healthy people, when taken within 24 hours of onset of symptoms.
See Also
External links
- Medical encyclopedia article on Zinc in biology
- Wikipedia's article - Zinc in biology
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