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Enzymes
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How do enzymes work?
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Enzymes
| Question | Answer |
|---|---|
| Enzymes | They are substances that cause chemical reactions to occur faster |
| How do enzymes work? | They work by decreasing the amount of energy needed to activate the chemical reaction |
| What are enzymes also known as? | Catalyst |
| Many of the chemical reactions that occur in cells are __________ by _________ | Catalyzed; enzymes |
| Ribosomes produce specific enzymes that act on specific substances called... | Substrates |
| Are most enzymes proteins? | Yes |
| Are enzymes important for the synthesis of new molecules? | Yes |
| The shape of an enzymes determines _______ ________ _______. | how it works |
| True or false Most enzymes have a surface with one or more deep folds. | True |
| Active sites | The pockets the deep folds make. |
| True or false An enzyme's shape is not key to how the enzyme functions. | False |
| If the enzymes shape is changed, what will happen to the enzyme? | It may not function as well or at all. |
| Changed in ________________ and _____ can affect the shape of an enzyme's active sits. | temperature; pH |
| If temperature and pH affects the shape of an enzyme's active sites and determines if it works or not, what does this say about where the temp. and pH should be in order for the enzyme to work properly? | It says that the temperature and pH need to be in a certain rage in order for the enzyme to work properly. |
| What is an enzyme that is essential to the process of transcription? | RNA polymerase |
| Where does the substrate go? | The substrate goes inside the active site like a puzzle piece. |
| What is true about enzyme catalyst? 1) They increase the energy that must be absorbed by reactions 2) They increase the energy that is released by reactions 3) They are not used up by the reactions | 3) They are not used up by reactions |
| How does the structure of the enzyme help with it's function? | The enzyme's shape fits its substrate's shape, thus allowing the enzyme to catalyze the appropriate reaction |
| What would most likely happen if a person's body stopped producing carbonic anhydrase? | The blood's acidity would increase and become toxic |
| How would an enzyme-substrate complex be compared as? 1.) lock and key 2.) shoe and sock 3.) salt and pepper 4.) dime and penny | 1.) lock and key |
| All cells in multicellular organisms contain thousands of different kinds of enzymes that are specialized to catalyze different chemical reactions. What could be true given this information? | All cells do not contain the same types of enzymes |
| Suppose that enzyme X catalyzes a reaction that involves the breakdown of a molecule. The product of this reaction is an amino acid. What molecule is the enzyme breaking down? | It is breaking down a protein |
| A biochemist is attempting to replicate a chemical reaction that commonly takes place in cells. During the chemical reaction, starch is broken down into glucose. What will most likely happen if the biochemist adds an enzyme to the reactants? | The reaction will speed up |
| The darker parts occur on the cooler parts of a cat's body because the enzymes that catalyzes the formation of the dark pigment is more active when cool. This ex. shows that enzymes are affected by... | temperature |
| 2 H2O2 (catalase)---> 2 H2O + O2 What molecule is catalase breaking down in this reaction? | H2O2 |
Created by:
brittanykremer
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