Zusammenfassung der Ressource
Proteins their
functions and uses
- uses
- structural components of tissues such as muscles and tendons.
- hormones such as insulin are made from protein
- antibodies are made from proteins
- enzymes are made of proteins
- enzymes are biological catalysts
- enzymes do not change the overall reaction in any way except make it happen faster
- enzymes build up reactions (building large molecules from smaller ones).They also break down reactions and change one molecule into another
- functions
- proteins are made from a long chain of amino acids
- in an enzyme there is a very specific shape called the active site. (lock and key mechanism)
- growth and repair, making important molecules like enzymes, haemoglobin and insulin
- digestion
- most of the food we eat is made of large insoluble molecules.
- starch is a large carbohydrate molecule made from
many sugar molecules joined togther
- fats are large molecules made from fatty
acids and glycerol joined together
- digestion means breaking down large insoluble food molecules into smaller soluble molecules
so that they can be absorbed into the blood stream
- chemical breakdown of food is controlled by digestive enzymes