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Amphipathic molecules are by definition those that contain both hydrophobic (water hating) and hydrophilic (water loving) regions.
The area of the molecule that likes water tends to stay in the aqueous region whereas the region of the molecules that hates water tends to cluster with other hydrophobic regions.
This untimately results in the hydrophobic regions packing together and forming a region that is impervious to water molecules. Such a structure is called a micelle
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Lipids in water?
Lipids are insoluble, so they will form a layer on top of the water, much like when oil from a spillage will float above the water's surface, as it is less dense than the water. They will not dissolve.
Do phospholipids contain polar tails and nonpolar head groups?
The compound with both a non-polar tail and a polar head is called an amphiphilic molecule. An amphiphilic molecule can form micelles. These such micelles is how detergents dissolve dirt. A big example of micelles are phospholipids.
What are phospholipids that tend to form tiny droplets with hydrophobic tails buried inside called?
micelles
What allows water molecules to dissociate ionic bonds and or to form hydrogen bonds?
Water molecules can dissolve ionic compounds and form hydrogen bonds because of their high polarity and lone-pair electrons on the oxygen atom.
Are lipids similar to water molecules?
Lipids are hydrophobic or ambiphilic small molecules. In water, hydrophobic lipids such as oils and fats clump up and separate from the water. In water, ambiphilic lipids such as phospholipids form bilayer structures; the body of living creatures uses these bilayer structures to form cell membranes and vesicles.
How does amphipathic molecules generate the lipid bilayer biomembranes?
Amphipathic molecules are molecules that contain a hydrophilic region (water-loving region) and a hydrophobic region (water-hating region). Therefore, phospholipids, which are amphipathic molecules that make up our cell membranes, form into bilayer bio-membranes naturally due to the hydrophobic forces of attraction between each phospholipid molecule and the water-hating nature of it forces the molecules to orientate themselves with their hydrophobic sections facing inward and their hydrophilic sections outward. I hope this helps! :)
What is the role of micelles?
A micelle is a charged aggregate consisting of molecules that are of colloidal size which are put together to form a solution. Examples of a micelle can be seen in soaps, suspensions, and detergents.
Why do water molecules cohere to form a liquid?
Water molecules are already in liquid form.
What is it called when water water molecules move apart and escape in the form of water vapor?
Evaporization is when water is released in the form of a molecules in the air.
What are the weak chemical attraction between water molecules?
Water molecules form hydrogen bonds to other water molecules.
Why are proteins amphipathic?
Because the heads of the phospholipids are hydrophilic (water loving) and the tails of the phospholipids are hydrophobic (water hating). The tails are pointing towards each other and the heads are facing the membranes.
What is the steam being given off when the water boils is it water molecules or hydrogen molecules?
Steam is water molecules in vapor form
Why is the formation of dew a physical change?
because the water molecules form together to form a liquid. molecules of water in the air (Vapour), form on a surface to form a liquid.
Match the description to the form of water that is described?
Water vapor is the least dense form of water, and the molecules are farthest apart from each other. Liquid water is the densest form of water. In ice, molecules form a crystal lattice.
Three similarities between water and ethanol?
Water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.
How does pospholipids behave in water?
Considering that phospholipids are amphiphilic molecules, such as soaps and detergents, form "micelles" (globular aggregates whose hydrocarbon groups are out of contact with water). This molecular arrangements eliminates unfavorable contacts between water and hydrophobic tails (the fatty acids) of the phospholipids and yet permits the solvation of the polar head groups (the phosphate group).Now, we have to consider that micelle formation is a cooperative formation, that is, an assembly of just a few amphiphiles cannot shield its tails form contact with water. Consequently, dilute aqueous solutions of amphiphiles do not form micelles until their concentrations surpasses a certain critical micelle concentration (cmc). According to this, above the cmc, almost all added amphiphiles aggregates to form micelles. The value of the cmc depends on the identity of the amphiphile and the solution conditions, for example, biollogical lipids, most of which have two large hydrophobic tails (the fatty acids), the cmc values are generally < 10-6 M.
Do hydrogen and oxygen molecules form water?
No, water is H2O therefore it has two hydrogens and one oxygen.
