Define functions of selenium in humans, Biology

Assignment Help:

Define Functions of selenium in humans?

Until recently, the only known metabolic role of selenium in humans was as a component of glutathione peroxidase which along with vitamin E and superoxide dismutase forms a part of the and-oxidant defense system. However, more selenoproteins are being discovered and currently it is estimated that 50-100 selenoproteins are present in animals. Selenoproteins in animals and humans are involved in protection from oxidative damage, maintaining adequate thyroid hormone status and protection from injury by a heavy metal like mercury. Three major enzyme systems in which selenium plays an important role have been identified in humans.

These include:

a) Glutathione peroxidases,

b) Iodothyronine deiodonases, and

C) Selenoproteins P and W


Related Discussions:- Define functions of selenium in humans

Explain about the brownian ratchets and molecular motors, Explain about the...

Explain about the Brownian ratchets and molecular motors ? How work is carried out by molecules within biological cells is essential to understanding how cells function. A clue

Explain the body tube of microscope, Explain the Body Tube of Microscope? ...

Explain the Body Tube of Microscope? Above the stage and attached to the arm is the body tube, to which eye piece(s) or ocular lens and revolving nosepiece is attached. Microsc

Lower invertebrates, adaptation of the phylum protozoa to its function

adaptation of the phylum protozoa to its function

Sterility in angiosperms, Sterility in Angiosperms Sterility in angios...

Sterility in Angiosperms Sterility in angiosperms may arise due to several causes. Either the anther may not be formed, or anthers are formed but meiosis may be abnormal. A

What is osmotic diarrhoea, Q. What is Osmotic diarrhoea? This kind of d...

Q. What is Osmotic diarrhoea? This kind of diarrhoea is caused by the presence of osmotically active substances in the intestinal tract, which in turn, favour the drawing of la

Intermediary metabolism, High Energy Compounds Primary need of the animal b...

High Energy Compounds Primary need of the animal body from the nutrients is energy. Free energy is the term used to denote the energy available to do useful work. Anabolic or synth

What do you understand by taxonomy, Q. What do you understand by taxonomy? ...

Q. What do you understand by taxonomy? Taxonomy is dependent on many sciences and they in turn are equally dependent on it. The activities of a taxonomist are basic to all othe

Ribonucleases and deoxyribonucleases, Ribonucleases  and  deoxyribonuclea...

Ribonucleases  and  deoxyribonucleases These enzymes  are  responsible  for  the degradation of  dietary  nucleic acids. Ribonucleases  and  deoxyribonucleases secreted by  the

Developmental biology, a recent topic for my developmental biology assignm...

a recent topic for my developmental biology assignment

What is the ph inside the stomach, Q. What is the pH inside the stomach? Wh...

Q. What is the pH inside the stomach? Why is there a need to keep that pH level? How is it maintained? Which are the cells that produce that pH? The normal pH of the gastric ju

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd