Questions and Answers
What is the characteristic of phospholipids that makes them form bilayers?
They have two water-fearing tails
What is the primary factor that governs the formation of rod-shaped micelle?
Gibbs free energy
Which type of micelle is formed at higher concentration?
Laminar micelle
What is the arrangement of monomers in rod-shaped micelle?
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Which of the following molecules has only one water-fearing tail?
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What is the shape of the central part of the hydrocarbon radius in rod-shaped micelle?
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Which type of micelle is interconvertible with other types?
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Study Notes
Types of Micelles
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Spherical Micelles: amphipathic molecules can form bilayers or spherical micelles, where phospholipids (amphipathic molecules with two water-fearing tails) prefer to form bilayers, while fatty acids (with one water-fearing tail) form micelles more easily and stably.
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Rod-Shaped Micelles: monomers are arranged in a rod shape, governed by the characteristic Gibbs free energy of rod formation, with a central cylindrical part and hemispherical parts at the ends, influenced by hydrophobic, electrostatic, and steric interactions.
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Laminar Micelles: formed at higher concentrations, where initially spherical micelles convert to laminar micelles as the concentration increases, with monomers arranged in a laminar manner.
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Description
Learn about the different types of micelles, including spherical and rod-shaped micelles, and their formation from amphipathic molecules such as phospholipids and fatty acids.
