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CB - Enzymes
Cell Biology - Topic 5 - Enzymes
Question | Answer |
---|---|
Which type of cells make enzymes? | All living cells |
What do enzymes function as? | Biological catalysts |
What is the molecule called that an enzyme works on? | substrate |
At what area on the enzyme does the substrate bind to? | active site |
Enzymes are only complementary to ONE substrate, this is known as? | specific |
What word describes reactions that build small substrates into a large products? | synthesising |
What word describes reactions that break down a large substrate into smaller products? | degrading |
What enzyme breaks starch down into maltose? | amylase |
What enzyme breaks down hydrogen peroxide into oxygen and water? | catalase |
What enzyme breaks down protein into amino acids? | pepsin |
What enzyme breaks down fat into fatty acids and glycerol? | lipase |
What enzyme builds glucose-1-phosphate into starch? | phosphorylase |
What are 'optimum conditions' for enzymes? | the conditions in which the enzyme is most active. |
What conditions could denature an enzyme? | High temperature, pH |
What happens to a denatured enzyme? | The shape of active site changes, so the enzyme no longer works |
What is the function of enzymes? | They are biological catalysts that speed up chemical reactions but are unchanged in the process. |
What is the complex called when a substrate binds into the active site of the enzyme? | An enzyme-substrate complex. |
If an enzyme becomes denatured will this increase or decrease the rate of reaction? | Decrease (slows down the reaction) |