BioScience Dictionary

 
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Hydrophobic 13 times.

Displaying results 1 to 10.

1. Cyclodextrin
A cyclic oligomer of alpha-D-glucopyranose. The most common cyclodextrins are alpha, beta and gamma cyclodextrin having 6,7 and 8 glucopyranose units respectively. They occur naturally in starch digests of the bacteria Bacillus Macerans. With a hydrophobic interior cavity, they can complex small hydrophobic molecules while remaining soluble in water. Potential applications include water-soluble pharmaceuticals and herbicides and pesticide s.

2. Detergent
A substance which has a nonpolar, hydrophobic part (avoids water) and a polar, hydrophilic part (attracted to water). It can dissolve fat s and oil s (collectively, lipid s) with the hydrophilic end, and as a result can increase the cleaning abilities of its solvent s (whatever it's dissolved in).

3. Hydropathy plot
A graph which shows how hydrophobic each amino acid in a polypeptide is versus where it is located on the polypeptide. The hydropathy plot is used to find clusters of hydrophobic amino acids, which could indicate that the polypeptide in question is a transmembrane protein . A transmembrane protein has hydrophilic parts which protrude out on either side of the cellular membrane , and a hydrophobic center which lies within the membrane.

4. Hydrophobic (hydrophobia)
Exhibiting hydrophobia; refers to: * A substance that repels or will not absorb water. * An organism that is harmed by water or a wet environment. * A person that has an irrational fear of water. * An animal suffering from rabies .

5. Hydrophobic bonding
* The attraction of hydrophobic and nonpolar molecules to each other in the presence of water (or another polar fluid). * The attraction of the hydrophobic (or nonpolar) parts of molecules to each other in the presence of water (or another polar fluid). Because hydrophobic molecules are repelled by water, they will form clumps with one another so that the clumped interiors are hidden away from water.

6. Hydrophobic effect
The tendency for the nonpolar portions of a group of lipid molecules to clump together with one another and exclude water and other polar molecules. The polar portions of the lipid molecules end up facing out. The hydrophobic effect is primarily responsible for the construction of lipid bilayer s.

7. Hydrophobic interaction
The attractive force between molecules due to the close positioning of non- hydrophilic portions of the two molecules.

8. Hydrophobic
Water-fearing.Term applied to nonpolar molecules that cannot bond with water.

9. Hydrophobicity
A measure of how insoluble (undissolvable) a given molecule is when in water or other polar liquids.

10. Integral membrane protein
A protein that is strongly bound to a membrane by hydrophobic interactions; compare with peripheral protein s.


View web definitions »

Learn more about Hydrophobic »