Biological Glossary - molecules
- Created by: calebilton
- Created on: 14-12-17 09:52
Biological Glossary - Molecules
Key Word
Definition
Monomer
One small molecule that can combine with other monomers to make a polymer
Polymer
A large molecule made up of lots of lots of monomers, it is a chain
Condensation Reaction
Chemical process which combines two molecules into a more complex removal with the removal of water
Monosaccharide
A sugar that can’t be made to give a simpler sugar, they forms chains to create a polysaccharide
Alpha Glucose
Glucose which has OH on the bottom of the 1st Carbon
Beta Glucose
Glucose which has OH on the top of the 1st Carbon
1-4 Glycosidic bond
A bond between 2 Glucose molecules, between the 1st Carbon and the 4th Carbon, formed by condensation reaction
1-6 Glycosidic bond
A bond between 2 Carbons between the 1st Carbon and the 6th Carbon formed by condensation reaction
Reducing sugars
Sugars that can act as a reducing agent because it has free groups,all monosaccharides are reducing sugars
Non-reducing sugars
A sugar that can’t act as a reducing agent
Benedict’s solution
A solution that changes colour when sugar is detected
Disaccharide
A disaccharide is two monosaccharides connected together with a glycosidic bond
Sucrose
Sucrose is a disaccharide made from fructose and glucose with a glycosidic bond
Galactose
Galactose is a monosaccharide, it is like glucose but has OH above in the 2nd Carbon
Maltose
Maltose is a disaccharide formed from two alpha glucose molecules
Polysaccharide
A polysaccharide is a polymer made from lots and lots of monosaccharides in a chain, they are made with condensation reactions and polymerisation
Starch
Starch is a polysaccharide made from Amylopectin and Amylose
Amylose
Amylose is a polypeptide made from glucose which 1-4 glycosidically bonded
Amylopectin
Amylopectin is made from glucose with 1-4 glycosidic bonds, however it also has 1-6 glycosidic bonds, meaning that it is branched
Cellulose
Cellulose is a polysaccharide made from beta glucose 1-4 bonds, every other glucose is twisted so that the cellulose is straight
Microfibrils
A very small fibril made from strands of cellulose, held together by hydrogen bonds
Hydrogen bond
The bond between slight positive and negative charges, it makes a weak force of attraction
Triglyceride
A molecule made up of a glycerol molecule and 3 fatty acids
Ester Bond
The bond between the glycerol molecule and the fatty acid, it is called an Ester bond because of the distinctive shape
Saturated
A substance is saturated when all bonds are single, meaning that there are no double or triple bonds. All of the bonds are used up
Unsaturated
Unsaturated is when a substance includes bonds that are not single, for example…
Comments
No comments have yet been made