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

How do arthropods grow, Q. How do arthropods grow? Due to the presence ...

Q. How do arthropods grow? Due to the presence of exoskeleton the growth of an arthropod is periodical during the growth period the animal loses the exoskeleton, develops and g

Explain right and left dominant circulation, Q. Explain Right and left Domi...

Q. Explain Right and left Dominant Circulation? Right Dominant Circulation: In 85 per cent of patients, the right coronary artery goes on to form the AV nodal artery, the poste

Taxonomy, A In taxonomy, what is a "KEY" ? List the different types of key...

A In taxonomy, what is a "KEY" ? List the different types of keys. How are they prepared and what are they used for ?sk question #Minimum 100 words accepted#

Explain phenotypical characteristics of alleles of a gene, What are few exa...

What are few examples of phenotypical characteristics that present two or more varieties and of phenotypical features that do not vary? In relation to the genes correspondent to th

Aerobic cellular respiration during muscle exercise, Q. What happens when t...

Q. What happens when the oxygen supply is inadequate to maintain aerobic cellular respiration during muscle exercise? If oxygen from myoglobin or hemoglobin is not enough for t

What do you mean by tuberculosis, Q. What is tuberculosis? How is the disea...

Q. What is tuberculosis? How is the disease transmitted? Is there treatment for tuberculosis? The Tuberculosis is a disease caused by the Mycobacterium tuberculosis bacteria wh

What is pulmonary venous congestion ?, Q. What is Pulmonary Venous Congesti...

Q. What is Pulmonary Venous Congestion ? In pulmonary venous hypertension, the earliest change is an increase in calibre of the upper lobe vessels. If the upper lobe veins meas

List the steps of mitosis, Q. List the steps of mitosis and briefly describ...

Q. List the steps of mitosis and briefly describe what happens in each.

Zoology, #question. what is cloning.

#question. what is cloning.

Maggots and murder, Plot the data as a suitable graph. Join the points with...

Plot the data as a suitable graph. Join the points with the best-fitting smooth curve.Temperature oC(5,10,11,13,17,19) Time taken for eggs to hatch/h 230 90 70 30 25

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