Term
| What are the subunits of proteins? |
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Definition
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Term
| What determines the sequence on amino acids in a protein? |
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Definition
| the sequence of bases in DNA |
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Term
| Why is the sequence of amino acids in a protein important? |
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Definition
| the sequence of amino acids determines the shape and function of a protein |
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Term
| Name three functions of proteins. |
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Definition
| structural proteins in cell membranes/ enzymes/ hormones/ antibodies / cell receptors / carriers in active transport. |
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Term
| What effect does a reaction have on an enzyme? |
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Definition
| enzymes are unchanged by reactions |
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Term
| What effect does an enzyme have on a biological reaction? |
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Definition
| enzymes speed up biological reactions |
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Term
| What does the term specific mean when applied to enzymes? |
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Definition
| an enzyme can only work on ONE substrate |
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Term
| Explain why enzymes are specific. |
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Definition
| the shape of the active site of an enzyme is complementary to a specific substrate |
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Term
| Name the two TYPES of reaction that enzymes are involved in. |
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Definition
| synthesis (build up) & degradation (breakdown) |
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Term
| Describe the effect of increasing the temperature on enzyme activity. |
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Definition
| enzyme activity will increase as temperature increases |
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Term
| Describe the effect of high temperature on enzyme activity. |
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Definition
| enzyme activity will stop |
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Term
| Whate effect will high temperature have on the shape of the enzyme's active site? |
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Definition
| the shape of the ative site will change / become denatured so that it no longer fits its substrate |
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Term
| Explain the effect of high temperature on enzyme activity. |
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Definition
| high temperature will denature the enzyme / change the shape of the active site so it no longer fits the shape of the substrate |
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Term
| Define the term optimum with reference to enzyme action. |
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Definition
| the condition where an enzyme is most active is called the optimum |
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Term
| Name a factor, other than temperature, that will affect enzyme action. |
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Definition
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