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Proteins

Largest and most diverse group, many functions:

Structure Enzymes Transport Pumps Motors Hormones Receptors Antibodies

Storage Blood Clotting Lubrication Toxins Antifreeze and more!

Proteins are made of amino acids, made up of Carbon, Oxygen, Hydrogen, Nitrogen and Sulphur.
The general structure is shown below:




H2N: Amino group (base)
H:…

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A helix: Polypeptide chain wound to form helix, held together by hydrogen bonds running
parallel with a helical axis, the sheer number of hydrogen bonds mean this is a very stable
and strong structure


B helix: Polypeptide chain zigzags back and forward forming a sheet of anti-parallel
strands, held by…

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