Define the functions of vitamin a, Biology

Assignment Help:

Define the Functions of Vitamin A?

Vitamin A (retinol) is an essential nutrient needed in small amounts by humans for the normal functioning of the visual system, growth and development, and maintenance of epithelial cellular integrity, immune function, and reproduction. While we discuss the major functions of vitamin A, it is important to note  &at primary vitamin A deficiency (VAD) may give rise to more than one secondary  effects which can of tell be recognized in the form of clinical signs and symptoms  most important  being ocular manifestations grouped under 'xerophthamia. In addition to the specific signs and symptoms of xerophthamia and the risk of irreversible blindness, nonspecific symptoms include increased morbidity  and mortality, poor reproductive health, increased risk of anaemia, and contributions  o depressed growth and development.


Related Discussions:- Define the functions of vitamin a

Determine the functional food in europe, Determine the Functional Food in E...

Determine the Functional Food in Europe? Functional foods are: Conventional/everyday foods consumed as a part of the normal diet; Composed of naturally-occurring co

What is the major biological function of ribosomes, Q Where in the cell can...

Q Where in the cell can ribosomes be found? What is the major biological function of ribosomes? Ribosomes can be found free in the cytoplasm, adhered to the external side of th

Molecules diffuse down their concentration gradient, If molecules diffuse d...

If molecules diffuse down their concentration gradient and achieve equal concentration throughout a container or cell, does all movement stop? Explain your answer.

Explain regulation of water balance for cells in the kidneys, Explain Regul...

Explain Regulation of Water Balance for Cells in the kidneys? Cells in the kidneys respond to low blood pressure by releasing an enzyme called renin, which in turn causes the k

What is venous hum in heart dieases, What is Venous Hum in heart dieases? ...

What is Venous Hum in heart dieases? Characteristic: Continues sound with diastolic component often a higher pitched and louder than the systolic, best heard just above the c

What do you mean by zoological nomenclature, What do you mean by Zoological...

What do you mean by Zoological Nomenclature? This trust is housed in the British Museum, London and is responsible for some of the most important literature in Zoological Nomen

Homework, The Waldorf family was caught in a fire but escaped. Unfortunatel...

The Waldorf family was caught in a fire but escaped. Unfortunately, the father and daughter suffered burns. The father had second-degree burns on his entire chest, abdomen, and bot

O-linked oligosaccharides , Most proteins made by ribosomes on the RER (rou...

Most proteins made by ribosomes on the RER (rough endoplasmic reticulum) are glycoproteins, which is they hold short chains of carbohydrates (oligosaccharides) covalently related t

Are nematodes diploblastic or triploblastic animals, Are nematodes diplobla...

Are nematodes diploblastic or triploblastic animals? Just like platyhelminthes, nematodes are triploblastics, i.e., they show three germ layers (ectoderm, mesoderm and endoder

Explain lamda and kappa-carrageenan, Explain Lamda and Kappa-carrageenan ...

Explain Lamda and Kappa-carrageenan Lamda-carrageenan at a concentration of 0.05% produces thickening and  stabilization. Sodium salts of Lamda and Kappa-carrageenan at a co

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