Define fluorides metabolism, Biology

Assignment Help:

Define fluorides Metabolism?

Soluble fluorides, even at high intake levels are almost completely absorbed from gastrointestinal tract. These include aqueous solutions of fluorides, sodium fluoride (NaF) used in toothpastes, and sodium fluorosilicate used in water fluoridation. However, its availability from solid foods is only about 50%-80% of that absorbed from aqueous solutions. This is because in foods, it may be bound to proteins and on hydrolysis by enzyme proteases, may still be less available for absorption, Peak plasma concentrations occur within 30-60 minutes of ingestion. Fluoride absorption occurs through diffusion.

Once absorbed, the fluoride passes into the blood for distribution chiefly to the calcified tissues. Most of the ionic fluoride enters the bone and developing teeth where the fluoride ion replaces the hdroxyl or bicarbonate in the hydroxyapatite and forms fluoroapatite. About half of the fluoride absorbed each day is deposited in the skeleton or teeth within 24 hours. Nearly 99% of the fluoride in the body is in the calcified tissues. Fluoride in the bone is in a reversible pool and can exchange for other ions such as hydroxyl ions during the process of bone remodelling. The only positive role clearly demonstrated for fluoride, however, is in the prevention of dental caries.


Related Discussions:- Define fluorides metabolism

Homework, How do adhesion and cohesion help plants move materials?

How do adhesion and cohesion help plants move materials?

How to improve natural history with congenital heart disease, How to improv...

How to improve natural history of adults with congenital heart disease? Improving the natural history of adults with CHD: As mentioned above the populations of adults with CH

Define direct measurement of individual''s work capacity, Define Direct mea...

Define Direct measurement of individual's Work Capacity? Direct measurement of VO 2 max is determined by having the subject perform exercise at increased loads, for 12 to 15 m

Define the process of dough formation, Define the process of Dough Formatio...

Define the process of Dough Formation? You already know that gluten is the protein found in wheat. A unique property of gluten proteins of wheat grain endosperm (and to a lesse

Difference between self pollination and cross pollination, What is the diff...

What is the difference between self pollination and cross pollination? Which of these two modes of pollination contributes more to the plant diversity? Self pollination happens

Explain regulation of glycolysis, Regulation of Glycolysis There are th...

Regulation of Glycolysis There are three markedly exergonic reactions in  the glycolytic pathway, which  are considered physiologically irreversible. These reactions are cataly

How are cnidarian characterized, Q. Cnidarian identity card. How are they c...

Q. Cnidarian identity card. How are they characterized according to instance of representing beings, basic morphology, kind of symmetry, germ layers and coelom, digestive system, r

Guiding and overseeing actions of consciousness, Q. Guiding and overseeing ...

Q. Guiding and overseeing actions of Consciousness? Guiding and overseeing actions: Consciousness connects brain and body states with external occurrences. In order to functio

Define the classification of proteins, Define the Classification of Protein...

Define the Classification of Proteins? Proteins vary widely in. their properties. We suggest you look up this unit once again now as the information about proteins and their pr

Endocrine glands, Endocrine glands Endocrine glands have no ducts - ...

Endocrine glands Endocrine glands have no ducts - so these are also called as ductless glands Eg.Pituitary etc., These glands secrete chemical substances called HORMONES

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