Statistics for A Level Biology - Enzymes 2.4

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General Stats

  • This quiz has been taken 167 times
  • The average score is 7 of 15

Answer Stats

DefinitionKeyword% Correct
Indented area on the surface of an enzyme molecule, with a shape that is complementary to the shape of the substrate moleculeActive site
95%
Chemical that speeds up the rate of reaction and remains uncharged and reusable at the end of the reactionCatalyst
77%
Molecule produced from substrate molecules, by an enzyme-catalysed reactionProduct
63%
Complex formed by temporary binding of enzyme and substrate molecules during an enzyme-catalysed reactionEnzyme-substrate complex
61%
Molecule that is altered by an enzyme-catalysed reactionSubstrate
58%
Outside the cellExtracellular
56%
Inside the cellIntracellular
53%
A substance that reduces or stops a reactionInhibitor
48%
The chemical reactions that take place inside living cells and organismsMetabolism
46%
Where the inhibitor molecule has a similar shape to that of the substrate molecule and completes with the substrate for the enzyme's active site. It blocks the active site and prevents formation of enzyme-substrate complexes.Competitive inhibition
27%
Where the competitor molecule attaches to a part of the enzyme but not the active site. This changes the shape of the active site, which prevents ES complexes forming, as the enzyme active site is no longer complementary in shape to the substrate moleculeNon-competitive inhibition
25%
Enzyme molecule with product molecule(s) in its active siteEnzyme-product complex
23%
Number of molecules per unit volumeConcentration
19%
Temperature coefficientQ10
16%
A substrate that has to be present to ensure that an enzyme-catalysed reaction takes place at the appropriate rateCofactor
11%

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