Introduction to Biological Molecules
Monomers can be linked together to form long chains. Long chains of monomer sub-units are called polymers and the process is polymerisation.
Condensation and Hydrolysis Reactions
In the formation of polymers by polymerisation, each time a new sub-unit is added a molecule of water is formed. This is a condensation reaction.
Polymers can be broken by addition of water, breaking bonds linking sub-units of a polymer. This is a hydolysis reaction.
All the chemical processes that take place in the living organisms are collectively called metabolism.
Making large molecules
Examples of monomers include monosaccharides, amino acids, snd nucleotides. Monomers join together to form lomg chains polymers.
Sweet-tasting, soluble substances with general formula (CH2O)n. Examples of monosaccharides include glucose, galactose and fructose.
Test for reducing sugars
All monosaccharides and some disaccharides are reducing sugars. A reducing sugar can donate electrons to another chemical, in this case Benedicts Reagent.
Benedicts test: Alkaline solution of copper (II) sulphate. When a reducing sugar is heated with Benedicts reagent it forms an insoluble red…