proteins-their functions and uses

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  • Created by: geogt002
  • Created on: 31-05-16 15:24

10 protein and enzyme facts:

1-proteins are made from long chains of smaller molecules called aminio acids.

2-these long chains are folded into particular shapes.

3- enzymes are biological catalysts.

4-enzymes are also proteins.

5- if the spape of the enzyme chnages it is said to be denatured.It may no longer work.

6-Proteins are polymers.

7-proteins are built up cells when monomers called amino acids join together end to end.

8- A lot of amino acid molocules = a protein molecule

9-glycine and alaninine are examples of amino acids.

10- long chains of amino acids fold to give each type of protein molecule a specific shape. e.g. strucular compenonets of tissues (musles), hormones (insulin), antibodies (part of bodies immune syestem) and biological catalys (enzymes). the particulr shape that a protein molocule has aloows other molocules to fit into it. this is pariticalay important for antibodes and enzymes.

how do enzymes work?

-ENZYMES ARE BIOLOGICAL CATALYS. biological catylsts are substances that icrease the rate of chemical reactions without being used up.

-substrate- a subastance on which enzymes act.

-enymes:proteins folded into complex shapes that aloow smaller molecules  to fit into them.

-active site: the place where substrate molecules fit in.

- if the shape of an enzyme changes its active site may no longer work.a.k.a. denatured.

-sunstances can also be denatured by high temps or high PH levels.

Tempreture, ph


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