Enzyme Key Words

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  • Created by: Lillith7
  • Created on: 08-02-21 14:06
A molecule which speeds a chemical reaction, but remains unchanged at the end of the reaction
catalyst
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A sequence of enzyme-controlled reactions in which a product of one reaction is the substrate in the next
metabolic pathway
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Site on an enzyme with particular 3D structure that permits binding with a substrate
active site
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Intermediate structure formed during an enzyme-catalysed reaction in which the substrate and enzyme bind temporarily, such that the substrates are close enough to react
enzyme-substrate complex
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The minimum energy that must be put into a chemical system for a reaction to occur
activation energy
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An enzyme's active site is permanently distorted by the irreversible breaking of hydrogen bonds, preventing substrate binding and reducing the rate of reaction
denatured
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Reversible reduction of enzyme activity at low temperatures as molecules have insufficient kinetic energy to form enzyme-substrate complexes
inactivation
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factor is limiting when an increase in its value causes and increase in the rate of reaction
limiting factor
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A molecule or ion that reduces the rate of an enzyme-controlled reaction
inhibitor
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Reduction of the rate of an enzyme-controlled reaction by a molecule or ion that has a complementary shape to the active site, similar to the substrate, and binds to the active site, preventing the substrate from binding
competitive inhibition
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Reduction of the rate of an enzyme-controlled reaction by a molecule or ion that binds to the enzyme somewhere other than the active site (allosteric site) , altering the shape of the active site so that the substrate cannot bind
non-competitive inhibition
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Enzyme molecules bound to an inert material, over which the substrate molecules move
immobilised enzyme
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A device that combines a biomolecule, such as an enzyme, with a transducer, to produce an electrical signal which measures the concentration of a chemical
biosensor
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Other cards in this set

Card 2

Front

A sequence of enzyme-controlled reactions in which a product of one reaction is the substrate in the next

Back

metabolic pathway

Card 3

Front

Site on an enzyme with particular 3D structure that permits binding with a substrate

Back

Preview of the front of card 3

Card 4

Front

Intermediate structure formed during an enzyme-catalysed reaction in which the substrate and enzyme bind temporarily, such that the substrates are close enough to react

Back

Preview of the front of card 4

Card 5

Front

The minimum energy that must be put into a chemical system for a reaction to occur

Back

Preview of the front of card 5
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