MACROMOLECULES EXAMPLE IS NOT THE MAIN THING IN INFLUENCING OTHERS. IT IS THE ONLY THING. ALBERT SCHWEITZER Ch.16 J.C. Rowe Windsor University School of.

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Presentation transcript:

MACROMOLECULES EXAMPLE IS NOT THE MAIN THING IN INFLUENCING OTHERS. IT IS THE ONLY THING. ALBERT SCHWEITZER Ch.16 J.C. Rowe Windsor University School of Medicine

Concept map polymerisation Condensation polymerisation Naturally occurring Addition polymerisation synthethic

Condensation Polymerisation Naturally occurring CarbohydratesGlucoseProteinAmino acidsNucleotideNucleic acids

Addition Polymerisation synthetic thermoplastic Alkenes Thermosetting plastics Alkenes

Macromolecules  Large molecules  Macromolecules are formed when monomers are linked together to form longer chains called polymers.  The same process of making & breaking polymers is found in all living organisms.

Monomers & functional groups

Combinations of different units

Glucose molecule

Formation of starch  Starch is formed from 2 monomer units, glucose & fructose, which link together via condensation reaction to produce the disaccharide sucrose.  The enzyme salivary amylase, found in saliva, hydrolyses starch into its monomer units.

Combination of glucose units

Repeating unit

Amino acid units

Proteins  Proteins are made up of amino acid monomer units.  The amino end (-NH2) of one amino acid join up with the acid end (-COOH) of another amino acid to form a peptide bond.

Monomer/Polymer/Cellular structure

Plastics  Addition polymers are formed by subjecting the monomer to high pressure & temperature in the presence of a catalyst.  Polyesters & polyamides (nylon) are synthetic fibers made from condensation polymerisation.  There are 2 types of plastics : thermoplastics (easily remoulded) & thermosetting plastics (cannot be re- melted or remoulded)

Polymerisation

I am only one, but still I am one. I cannot do everything, but still I can do something. I will not refuse to do the something I can do. Helen Keller