Biology

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Active Site
Indented area on the surface of an enzyme molecule, with a shape that is complementary to the shape of the substrate molecule
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Catalyst
Chemical that speeds up the rate of a reaction and remains unchanged and reusable at the end of the reaction
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Extracellular
Outside the cell
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Intracellular
Inside the cell
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Metabolic
The chemical reactions that take place inside living cells or organisms
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Product
Molecule produced from substrate molecules, by an enzyme-catalysed reaction
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Substrate
Molecule that is altered by an enzyme-catalysed reaction
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Cofactor
A substance that has to be present to ensure that an enzyme-catalysed reaction takes place at the appropriate rate
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Enzyme-Substrate Complex
Enzyme molecule with substrate molecules in its active site. The two are joined temporarily by non-convalent bonds
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Enzyme-Product Complex
Enzyme molecule with product molecules in its active site. The two are joined by temporarily by non-covalent forces
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Q10
Temperature coefficient, calculated by dividing the rate of reaction at (T+10)C by the rate of the rection at T*C
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Concentration
Number of molecules per unit volume
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Competitive Inhibtion
Inhibiton of an enzyme, where the inhibitor molecule has a similar shape to that of the substrate molecule and competes with the substrate for the enzyme's active site. It blocks the active site and prevents formation of enzyme-substrate complexes
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Inhibitor
A substance that reduces or stops a reaction
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Non-Competitive Inhibition
Inhibition of an enzyme,where the competitor molecule attaches to a part of the enzyme molecule but not the active site. This changes the shape of the active site, which prevents ES complexes forming
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Other cards in this set

Card 2

Front

Chemical that speeds up the rate of a reaction and remains unchanged and reusable at the end of the reaction

Back

Catalyst

Card 3

Front

Outside the cell

Back

Preview of the back of card 3

Card 4

Front

Inside the cell

Back

Preview of the back of card 4

Card 5

Front

The chemical reactions that take place inside living cells or organisms

Back

Preview of the back of card 5
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