What is the role of glycolipids in cells? + Example - Socratic
Mar 6, 2018 · Glycolipids play an important role in several biological functions such as recognition and cell signalling events. Glycolipids are lipids with a carbohydrate attached by a glycosidic bond or covalently bonded. They are found on the outer surface of cellular membranes where it plays a structural role to maintain membrane stability, and also facilitate cell-cell communication acting …
How does the integumentary system help prevent dehydration?
Aug 20, 2016 · The integumentary system provides a waterproof layer to keep water inside the body. The integumentary system consists of the skin, hair, nails, glands, and nerves. Of these, it is the skin that protects the body from dehydration. The skin is waterproof because its outer layer contains a protein called keratin and glycolipids. Layers of the Skin The skin consists of three …
Why are lipids not considered polymers? + Example - Socratic
Nov 8, 2015 · Polymers are chains of smaller molecules that can interlink, while lipids have a starter molecule, like a fatty acid, and build long chains through a chemical reaction, like dehydration. Polymers are chains of subunit molecules that are all similar in a way that allows the subunits to continue building longer macromolecules on either end. By contrast, lipids are …
What is ester linkage in lipids? - Socratic
Dec 3, 2017 · What are some examples of lipids? What is the role of glycolipids in cells? ...
How does dehydration synthesis relate to lipids? - Socratic
Jan 17, 2018 · Lipids are the macromolecules that are produced by kind of condensation reaction i.e dehydration synthesis. Dehydration synthesis being sort of condensation reaction is usually involved in synthesis of macromolecules. It involves the joining of the two smaller molecules of low molecular weight i.e monomers with the removal of water(H_2O) molecule to form larger …
Why are lipids insoluble in water? - Socratic
Oct 20, 2015 · Lipids, which include fats and oils are non-polar and hydrophobic. Non-polar substances such as fats and oils cannot be dissolved in water because they have made up of only carbon-carbon and hydrogen-carbon bonds. Only polar solutes dissolve in polar solvents,
Why can't ions pass through the lipid bilayer? - Socratic
Feb 1, 2018 · Because ions are polar. The lipid bilayer layer is actually a phospholipid bilayer made up of a lot of phospholipid molecules. Each phospholipid molecule has following parts: Polar & hydrophilic ("water-loving") head : It is made up of negatively-charged phosphate group(PO_4^(3-)) and glycerol (C_3H_8O_3) molecule. One of the oxygen of phosphate …
How do lipids differ from other macromolecules? | Socratic
Apr 29, 2018 · They consist of long chains of C, H, and O. In terms of chemical composition, lipids differ from nucleic acids and proteins because they mostly just contain carbon, hydrogen, and oxygen (except for phospholipids which of course contain phosphorous). In addition to those elements, proteins contain nitrogen and sulfur, and nucleic acids contain nitrogen and …
Why are lipids good storage molecules? - Socratic
Nov 12, 2015 · Lipids have... reduced compounds: lots of available energy hydrophobic nature: good packing Lipids are reduced compounds meaning that they have lots of available energy. Their hydrophobic nature serves as a "good packing" material as well. Triacylglycerols are the main storage lipids and the primary storage form of lipids is body fat.
What is the general formula for unsaturated fatty acids?
Aug 16, 2015 · A fatty acid consists of a carboxyl head (COOH) bonded to a hydrocarbon tail. An unsaturated fatty acid contains one or more double-bonded carbons in the hydrocarbon tail, reducing the amount of hydrogen atoms present. A fatty acid consists of a hydrocarbon chain bonded to a carboxyl group (COOH). The carboxyl group is referred to as the head, and the …