Explain the donnan membrane equilibrium, Biology

Assignment Help:

Explain the Donnan Membrane Equilibrium?

If one of the solutions in a two-phase membrane equilibrium contains certain charged solute species that are unable to pass through the membrane, whereas other ions can pass through, the situation is more complicated than the osmotic membrane equilibrium. Usually if the membrane is impermeable to one kind of ion, an ion species to which it is permeable achieves transfer equilibrium across the membrane only when the phases have different pressures and different electric potentials. The equilibrium state in this case is a Donnan membrane equilibrium, and the resulting electric potential difference across the membrane is called the Donnan potential. This phenomenon is related to the membrane potentials that are important in the functioning of nerve and muscle cells (although the cells of a living organism are not, of course, in equilibrium states). A Donnan potential can be measured electrically, with some uncertainty due to unknown liquid junction potentials, by connecting silver-silver chloride electrodes to both phases through salt bridges.


Related Discussions:- Explain the donnan membrane equilibrium

Explain nutrient cycling and their processes, Explain Nutrient Cycling and ...

Explain Nutrient Cycling and their processes? Two major processes are common to all ecosystems: nutrient cycling and the flow of energy. These two functions are carried out by

Explain the cladosporium - fungi and yeast, Explain the Cladosporium - Fung...

Explain the Cladosporium - Fungi and Yeast? Classification Kingdom - Mycetae Division - Amastigomycota Form - Class - Deauteromycetes Form - Order - Moniliales F

What is pulmonary stenosis, Pulmonary Stenosis :  The obstruction may be v...

Pulmonary Stenosis :  The obstruction may be valvar, infundibular or supra valvar.

Human diseases caused by virus, Q. What are some human diseases caused by v...

Q. What are some human diseases caused by virus and what are their respective modes of transmission? The major viral diseases transmitted by respiratory secretions (cough, snee

Define about the geriatric nutrition, Define about the Geriatric Nutrition?...

Define about the Geriatric Nutrition? Aging has been defined as "a series of time related process that ultimately brings life to a close." Persons of 60 years of age and older

What is the significance of immunogenicity, Problem: Explain the proced...

Problem: Explain the procedure for import of cosmetics in US. - Briefly explain the procedure for import of cosmetics in US What are the major points to be considered whe

Define the sequence-specific dna binding, Which of the following statements...

Which of the following statements regarding the interactions among sequence-specific DNA binding domains and their recognition sites is incorrect? A. Sequence-specific DNA bind

Explain an open circulatory system, Why, even though they have an open circ...

Why, even though they have an open circulatory system, can flying insects like flies beat their wings with great speed? In insects the circulatory system is open but this syste

How do birds reproduce, How do birds reproduce? Birds, like each verteb...

How do birds reproduce? Birds, like each vertebrate, have sexual reproduction. Their embryos develop within shelled eggs having extraembryonic membranes and outside the mother'

Excretion, what is the excretory organ of agama lizard

what is the excretory organ of agama lizard

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