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Statistics for A Level Biology - Enzymes 2.4

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General Stats

This quiz has been taken 175 times
The average score is 7 of 15

Answer Stats

Definition	Keyword	% Correct
Indented area on the surface of an enzyme molecule, with a shape that is complementary to the shape of the substrate molecule	Active site	95%
Chemical that speeds up the rate of reaction and remains uncharged and reusable at the end of the reaction	Catalyst	76%
Molecule produced from substrate molecules, by an enzyme-catalysed reaction	Product	62%
Complex formed by temporary binding of enzyme and substrate molecules during an enzyme-catalysed reaction	Enzyme-substrate complex	60%
Molecule that is altered by an enzyme-catalysed reaction	Substrate	57%
Outside the cell	Extracellular	56%
Inside the cell	Intracellular	53%
A substance that reduces or stops a reaction	Inhibitor	48%
The chemical reactions that take place inside living cells and organisms	Metabolism	48%
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 molecule	Non-competitive inhibition	24%
Enzyme molecule with product molecule(s) in its active site	Enzyme-product complex	22%
Number of molecules per unit volume	Concentration	19%
Temperature coefficient	Q10	15%
A substrate that has to be present to ensure that an enzyme-catalysed reaction takes place at the appropriate rate	Cofactor	11%

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