It has also been used as a term for a hangover, with the sufferer's groans of discomfort being humorously likened to a wailing cat. It may refer to: 1  Worbey & Farrell, previously known as Katzenjammer, a British piano musical comedy duo.  Katzenjammer (band), a Norwegian pop/folk band.
Zinc (Zn) is one of the eight essential micronutrients. It is needed by plants in small amounts, but yet crucial to plant development. In plants, zinc is a key constituent of many enzymes and proteins. It plays an important role in a wide range of processes, such as growth hormone production and internode elongation.
In addition to its role in the immune system, zinc also reduces oxidative stress, plays a structural role by stabilizing proteins, regulates the expression of many genes, and drives hundreds of chemical reactions in the body. Zinc also is required for neurotransmitter release in the brain and insulin packaging and secretion.