Biology- proteins and enzymes. 0.0 / 5 ? Biologyproteins and enzymes.National 5SQA Created by: hreid555Created on: 16-12-19 16:04 Name 5 different functions of proteins? Structural, enzymes, antibodies, hormones and receptors. 1 of 11 What does it mean when when enzymes are known as biological catalysts? They are found in living cells, they speed up the cellular reactions and thy are unchanged by the process. 2 of 11 What is the equation of the action of an enzyme? Substrate----> Enzyme----> Product. 3 of 11 Why is the shape of an enzymes active site important? It is complementary to only one specific substrate. 4 of 11 What is an enzyme-substrate complex? This is when the substrate joins with the enzyme at the active site. 5 of 11 Which reaction breaks down a larger substrate into smaller products? Degradation reaction. 6 of 11 Which reaction builds up smaller substrates into a larger product? Synthesis reaction. 7 of 11 What does it mean when an enzyme is specific? One enzyme works on only one substrate as the shape of the active site is complementary to only one substrate. 8 of 11 Name 2 factors which affect enzyme activity? Temperature and pH. 9 of 11 What does it mean when enzymes have optimum conditions? This is the condition where the enzyme is most active. 10 of 11 Why are enzymes denatured at high temperatures? How does this affect enzyme activity? The enzyme changes shape. This causes a decrease in enzyme activity. 11 of 11
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