How come lipids and water do not bond or mix together?

Question

how come staurated fat doen't mix with water or bound with it?

Answer 1

How come oil and water don't mix? It's the same question.

Water is called a polar molecule. There is a slight electromagnetic charge to each water molecule with the oxygen molecule holding on to the molecule's electrons more tightly than the hydrogen molecules do. Oils, including lipids, including saturated fat, are not polar. The molecules share electrons equally. Polar molecules attract other polar molecules. Nonpolar molecules are repelled by polar molecules. Therefore, saturated fat would dissolve in oil, but not in water.

Answer 2

Water molecules (H2O) are polar molecules where the hydrogen atoms and the oxygen atom have a covalent bond. A covalent bond means they share electrons.
H H
O
Oxygen tends to "hog" the electrons making the pole (side) slightly negative and the other pole with the hydrogens slightly positive. Think of a battery that has 2 poles, a negative and a positive. The positive pole (H atoms) is attracted to the negative pole (O atom) of adjacent water molecules. Remember opposites attract and that is the case here. So water likes to bind to other molecules with charges. And since like dissolves in like, polar molecules will dissolve in water. In the case of lipids (nonpolar molecules), they form neutral bonds (no charges). There is nothing that attracts water, so when placed in water, lipids are sqeezed out to allow the water molecules to bind with the other water molecules close by. Hope this helps!

Answer 3

Along with proteins, nucleic acids and carbohydrates, lipids are one of the major classes of biologically important molecules or biomolecules. However, unlike these other groups of molecules, lipids comprise a broader and more diverse range of structures. The term lipid really is a catch-all phrase for a wide variety of hydrocarbon-based molecules of biological origin that are predominantly nonpolar or hydrophobic ("water-fearing"), meaning that they do not interact well with polar solvents like water, and are instead soluble in less polar organic solvents. Most lipids also have some polar or hydrophilic ("water-loving") character. This makes them amphipathic or amphiphilic molecules (having both hydrophobic and hydrophilic portions). In the case of cholesterol, the polar group is a mere -OH (hydroxyl or alcohol). In the case of phospholipids, the polar groups are considerably larger and more polar. Lipids encompass a huge range of structures. They can be aliphatic or aromatic. They can be acyclic or cyclic, straight or branched, saturated or unsaturated. Lipids can be flexible or rigid. This diversity makes it impossible to define lipids on the basis of a single core structural feature or biosynthetic origin, as can be done with the other major groups of biomolecules. The basic classes of lipids are:

Answer 4

It has to do with polarity. It's kinda tough to explain it in a paragraph, but in the end, polar substances mix with polar substances, and non-polar substances mix with non-polar substances. Water is a polar molecule, while lipids are non-polar.

Answer 5

its not energetically favorable for polar molecules to move toward non-polar molecules