Proteins are considered polymers because they are made up of monomers, and lipids are not considered polymers because they are not made up of monomers. In order for the basic unit that makes up the lipid or protein to be called a monomer, the unit must occur in repetitive chains, which lipids do not.Continue Reading
Carbohydrates, lipids, proteins and nucleic acids are all considered macromolecules, which are giant molecules produced by the bonding of smaller molecules. Of these, macromolecules, carbohydrates, proteins and nucleic acids are considered polymers while lipids are not. The fundamental reason behind this, according to About, is that polymers are made up of monomers, which lipids do not contain. Protein monomers are amino acids and they bond together in repetitive chains just as carbohydrate monomers are sugars or monosaccharides. On the other hand, the basic units of lips are fatty acids and glycerol molecules that do not form repetitive chains. Instead, they form triglycerides from three fatty acids and one glycerol molecule.
To back this up, the University of New Mexico points out that the bonds that connect monomers dissolve in water. While this is the case in both proteins and carbohydrates, it is not the case for lipids which are not water soluble.Learn more about Cells
Lysosomes function much in the same way as the digestive system, in that they contain digestive enzymes that break down biological molecules, including carbohydrates, proteins, nucleic acids and lipids. They also destroy dead organelles inside the cell, allowing them to be replaced with more effective ones, a process known as autophagy.Full Answer >
Both DNA and RNA polymers are composed of monomers. These monomers are called nucleotides. A nucleotide has four parts; however, the monomers of DNA and RNA differ slightly from each other, thus giving the molecules different structures and functions.Full Answer >
Lipids are polymers because they are formed by condensation reactions from fatty acid monomers and alcohols. While they do not share the same physical characteristics of other polymers, such as plastic, they still meet the definition of a polymer.Full Answer >
A polymerization reaction occurs when monomers bond together to create polymers. These macromolecules can either be formed through covalent or noncovalent linking of monomer chains.Full Answer >