B3b Proteins and Growing

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  • Created by: cherie_00
  • Created on: 09-02-16 18:45

Proteins are made of long chains of amino acids. Each protein has its own number and sequence of amino acids, which results in differently shaped molecules which have different functions. Some functions of proteins include:

  • Structural (limitied to collagen) 
  • Hormones (limited to insulin)
  • Carrier molecules (limited to haemoghlobin)
  • Enzymes (amylase)

Enzymes are biological catalysts that catalyse chemical reactions in living cells such as; respiration, photosynthesis, protein synthesis.

The shape of the enzyme determines how it works.Enzymes have active sites that substrate molecules (the substances involved in the chemical reaction) fit into when a reaction happens.The active site has to be the right shape for the substrate molecules to fit into. This means that enzymes


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