What is Donnan's Equilibrium Theory?
Understand the Problem
The question discusses Donnan's Equilibrium Theory, explaining how ions accumulate in cells without using metabolic energy. It outlines the behavior of fixed ions and their permeability in cellular membranes.
Answer
Donnan equilibrium explains ion distribution across membranes due to fixed ions creating potential differences.
Donnan equilibrium theory explains how ions are distributed across a semi-permeable membrane. It describes how fixed ions within a cell attract permeable ions, creating an electrical potential that leads to an unequal distribution of ions, without using metabolic energy.
Answer for screen readers
Donnan equilibrium theory explains how ions are distributed across a semi-permeable membrane. It describes how fixed ions within a cell attract permeable ions, creating an electrical potential that leads to an unequal distribution of ions, without using metabolic energy.
More Information
Donnan equilibrium is crucial in understanding cellular processes and ion transport across cell membranes without energy expenditure.
Tips
A common mistake is to assume it involves energy usage; it actually describes passive distribution.
Sources
- Donnan Equilibrium - an overview | ScienceDirect Topics - sciencedirect.com
- Gibbs–Donnan effect - Wikipedia - en.wikipedia.org
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