Explain the storage of vitamin a, Biology

Assignment Help:

Explain the Storage of vitamin A?

The primary organ for storage of vitamin A is the liver. Reserves are found in the stellate cells, as mentioned above. The average liver weighs 1.5 kg and when replete, contains 450 mg of vitamin A stores. Hepatic tissue concentrations of < 30 mcg /g is considered marginal. Total body stores of vitamin A range from 300-900 mg with 20% found in peripheral organs and tissues. So far we have discussed about the absorption, transport, storage of vitamin A. It was mentioned in the text above that the bioavailability of vitamin A is a determinant of its absorption and hence excretion. Let us now understand the key aspects related to the bioavailability of vitamin A.


Related Discussions:- Explain the storage of vitamin a

State about the drosophila and bacteriophage, Alfred Sturtevant and Seymour...

Alfred Sturtevant and Seymour Benzer's studies of recombination in both Drosophila and bacteriophage demonstrated which of the following? A. The gene is an indivisible unit and

Explain about the artificial sweeteners, Explain about the Artificial Sweet...

Explain about the Artificial Sweeteners? As a group, artificial sweeteners are classed as "non-nutritive". Thus, they provide sweet sensation to the tastebuds, with no increasi

What in genetics is hybridization, What in Genetics is hybridization? H...

What in Genetics is hybridization? Hybridization in Genetics is the crossing of individuals from "pure" and dissimilar lineages in relation to a given trait, i.e., the crossing

Polymorphism in lysosomes, Polymorphism in Lysosomes Polymorphism, i.e. e...

Polymorphism in Lysosomes Polymorphism, i.e. existence of a structure in more than one form, is an important feature of lysosomes. Several different forms of lysosomes have been

Determine the functions of organ during pregnancy, Determine the Functions ...

Determine the Functions of Organ during pregnancy? Dramatic changes occur in renal functions to eliminate the nitrogenous and other waste products of maternal and foetal metabo

Why two atoms always represent the same element, Two atoms always represent...

Two atoms always represent the same element if they have. A) the same number of particles in the nucleus. B) The same number of electrons. C) The same number of shells. D) The same

What is the formula for calculation of bone distortion, What is the formula...

What is the formula for calculation of bone distortion The following formula can be used to calculate for distortion: Effective Bone available = Reference sphere diameter ×

Chlorophyll and osmosis, Hello, I did a experiment: I used 5 salt solution...

Hello, I did a experiment: I used 5 salt solutions (0 g/L; 5 g/L; 10 g/L; 15 g/L; 20 g/L), and in each one I cooked beans (25 g) for 5 minutes. At the end, I measured the absorpti

Lipogenesis, Anabolism and Lipogenesis : Beside  the glucose  stored  as gl...

Anabolism and Lipogenesis : Beside  the glucose  stored  as glycogen  some  glucose of  blood  isanabolized in everybody cell, into  structural  polysaccharides for  growth. Repair

Storage excretion, Storage Excretion Many insects exhibit a phenomenon...

Storage Excretion Many insects exhibit a phenomenon known as storage excretion. If excretory products are stored in the body instead of being eliminated, no water is expended

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