Study

N5 Biology 1.4 Proteins

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  • List 3 functions of proteins
    Structural/Hormone/Antibody/Receptor/Enzyme
  • State the 2 type of reaction enzymes can be involved in
    Synthesis and degradation
  • State the two factors that affect the function of a protein
    Temperature and pH
  • Describe what happens in a degradation reaction
    Complex/large molecules are broken down to simpler/smaller ones
  • State the term used to describe an enzyme at it's most active
    Optimum
  • State the definition of an enzyme
    a biological catalyst that speeds up chemical reactions but remains unchanged in the proccess
  • State the substrate in the reaction where amylase produces maltose
    starch
  • Describe what happens in a synthesis reaction
    simple/small molecules are built up to complex/larger ones
  • State the term used to describe an enzyme that has been at high temperature and has lost the shape of its active site
    Denatured
  • State the enzyme that builds up glucose-1-phosphate into starch in potatoes
    Phosphorylase
  • What part of the enzyme in complementary to a specific substrate
    the Active Site
  • State what determines the variety and shape of proteins
    The sequence of amino acids
  • State the products of the reaction where catalase breaks down hydrogen peroxide
    oxygen and water