Define absorption, transport and excretion - calcium, Biology

Assignment Help:

Define Absorption, Transport and Excretion - Calcium?

Calcium (Ca) in food occurs as calcium salts e.g. calcium phosphate or is associated with other dietary constituents e.g. calcium caseinate in milk. Before absorption, Ca must be released from foods and solubilized. This is achieved by the combined actions of gastric acid, intestinal enzymes, intestinal contractions and peristalsis. When calcium intake is low, calcium is mainly absorbed by active (transcellular) transport, but at higher intakes, an increasing proportion of calcium is absorbed by simple (paracellular) diffusion. Thus, calcium is absorbed from the intestine by transcellular route and paracellular route.


Related Discussions:- Define absorption, transport and excretion - calcium

Management and nutritional intervention using mna, Define Management and Nu...

Define Management and Nutritional Intervention using MNA - Undernutrition? A. For those categorized as well-nourished They need only be reminded of the importance

Explain about the diabetes mellitus, Explain about the Diabetes mellitus? ...

Explain about the Diabetes mellitus? You are aware that diabetes may be diagnosed as an exaggerated response in blood glucose concentration following ingestion of a fixed amou

What is implant success, Implant success 1) An individual, unattached i...

Implant success 1) An individual, unattached implant is immobile when tested clinically. 2) A radiograph that does not demonstrate any evidence of perimplant radiolucency.

Are viruses cellular beings, Are viruses cellular beings? Viruses are m...

Are viruses cellular beings? Viruses are measured as living beings but they do not have cellular structure. There is some argument regarding their classification as living b

Explain arteries in comparison to veins, Which of the below statements does...

Which of the below statements does NOT apply to arteries when comparing them to veins: a) Have thick walls b) Carry blood away from heart c) Highly elastic walls d) Ha

Explain the concentration of a solution, Explain The concentration of a sol...

Explain The concentration of a solution The concentration of a solution is the amount of solute dissolved in a specified amount of solvent or solution.  When the concentration

Illustrate wild life sanctuaries, Q. Illustrate Wild Life Sanctuaries? ...

Q. Illustrate Wild Life Sanctuaries? You must have seen how some of the parks are fenced. The intention is to keep the animals from wandering out and not to destroy neighbourin

Trihybrid cross between two true-breeding homozygous, Which of the followin...

Which of the following statements is true regarding a trihybrid cross between two true-breeding homozygous individuals with contrasting phenotypes? Which of the following statement

Psyiology, I need help with p-p, q-q and r-r intervals and heart rates

I need help with p-p, q-q and r-r intervals and heart rates

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