What makes fats hydrophobic? ?

Question

What makes fats hydrophobic? ?

Answer 1

The absence of groups that can form hydrogen bonds with water results in fats being hydrophobic.  

Answer 2

Fats are relatively non-polar, whereas water is relatively polar (even though the bonds are covalent).  Polar molecules are usually immiscible with non polar molecules.  Detergents work because they have a polar end and a non-polar end, hence they are miscible with both types.

Answer 3

the long carbon chain of fats makes it  hydrophobic.

Answer 4

ronaldi J has given you the best answer.  

Answer 5

fats has a long chain of carbon atom, and this long chain makes the fats become non-polar

water is a polar substance,

so fat cannot be dissolved in water. because it is non-polar

Answer 6

The hydrophobic behavior of lipids (fats) is based on their molecular structure.

The non polar C-H bonds in the tails of fatty acids are the reason fats are hydrophobic: fats separate from water because the water molecules hydrogen bond to one another (being polar) and exclude the fat.

have a look at the structure:

http://cache.eb.com/eb/image?id=96830&re...

http://library.med.utah.edu/NetBiochem/m...

hope that helps..