Question Acceptable Answer 18 D Int 2 The diagram below represents a potato cell. Marks 2011 B Q1(b) (b) Name the enzyme involved in the synthesis of starch in potato cells. Question Acceptable Answer 1(b) (potato/starch) phosphorylase Int 2 Enzymes are biological catalysts. The diagram shows part of an enzyme Marks 2011 controlled reaction. B Q4 (a) Describe the features of an enzyme which allow it to combine with 2 only one substrate. (b) What happens to an enzyme when it is boiled? 1 (c) Name a factor, than temperature, which affects enzyme activity. 1
Question Acceptable Answer 18 D Int 2 2011 B Q1(b) The diagram below represents a potato cell. Marks (b) Name the enzyme involved in the synthesis of starch in potato cells. Question Acceptable Answer 1(b) (potato/starch) phosphorylase Int 2 2011 B Q4 Enzymes are biological catalysts. The diagram shows part of an enzyme controlled reaction. Marks (a) Describe the features of an enzyme which allow it to combine with only one substrate. 2 (b) What happens to an enzyme when it is boiled? 1 (c) Name a factor, than temperature, which affects enzyme activity. 1