zinc
(Science: chemistry, element) An essential trace element being an essential component of the active site of a variety of enzymes.
Zinc has a high affinity for the side chains of cysteine and histidine. Zinc is present in tissues at levels of 0.1mM, but intracellular levels must be much lower.
Abbreviation: Zn
Dictionary > Zinc
You will also like...

Circulation
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

Still Water Animals
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..

Kidneys and Regulation of Water and Inorganic Ions
The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..

The Evolution of Cell Organelles
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..

Genetic Control – On and Off Genes
Genes are the blueprint of our bodies, a blueprint that creates a variety of proteins essential to any organism's surviv..

Freshwater Communities & Plankton
Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..