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

Assessment and nursing care plans, Assessment and Nursing Care Plans C...

Assessment and Nursing Care Plans Clustered Case Study Mr. Smith is an 83 year old gentleman (DOB 1.2.1928), who lives alone in his home on a cattle farm west of Ravenshoe.

Explain the position of the endospore, Explain the Position of the endospor...

Explain the Position of the endospore? Endospore cannot be stained by ordinary methods such as simple staining and gram staining because these dyes do not penetrate the wall of

Preparation of nursing care plan, Practical Points in Preparation of Nursi...

Practical Points in Preparation of Nursing Care Plan You first review the nursing diagnosis, then assign this priority or the order in which these are to be met.  Alo

What are four initial stages of the embryonic development, Q. What are the ...

Q. What are the four initial stages of the embryonic development? The four early stages of the embryonic development are the blastula stage, the morula stage, the gastrula stag

Determine the categories of latent squint, Determine the categories of Late...

Determine the categories of Latent squint Latent squint category there are five subtypes: 1)  Esophoria 2)  Exophoria 3)  Hypophoria 4)  Hyperphoria 5)  Cyclopho

Why degree of dispersion of protein solution is decreased, Degree of disper...

Degree of dispersion of protein solution is decreased. It is decreased because of certain reasons:- Association: refers to changes occuring at subunit or molecular leve

Define reaction of glucose & fructose with fehlings reagent, Define Reactio...

Define Reaction of glucose and fructose with Fehlings reagent? Lactose is a milk sugar. It is a reducing disaccharide having a free sugar group and can reduce Fehling's reagent

Cell membrane, CELL MEMBRANE It is biological, thin, elastic, flexib...

CELL MEMBRANE It is biological, thin, elastic, flexible & selective permeable membrane. Term "Cell membrane" was coined by Negeli & Crammer 1855. Term " Plasma membr

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