What is the shape of a competitive inhibitor similar to?
The substrate
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Why does the competitive inhibitor need to be a similar shape to the substrate?
The competitive inhibitor binds to the enzyme in the active site
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How does this decrease the rate of reaction?
There are less active sites available for substrate molecules hence less enzyme-substrate complexes can be made
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Does a competitive inhibitor induce a permanent change to the enzyme?
It binds to the active site, blocking it for substartes but then when it leaves the active site it leaves the enzyme free ot bind to substrate molecules unchanged
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Where do non-competitive inhibitors attach themselves to the eznyme?
To a part of the enzyme that is not the active site
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What happens to the enzyme when a non-competitive inhibitor binds to it?
The enzyme changes shape, hence the active site is no longer complimentary to the substrate
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Is it a permanent change made to the enzymes shape once a non-competitive inhibitor has binded to it?
Sometimes
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What is a metabolic pathway?
A series of reactions in which each step is catalysed by an enzyme
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The enzymes that control a metabolic pathway are usually highly s--------- and in a very precise s-------
- structured - sequence
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How is a steady concentration of each chemical produced maintained?
The end product chemical may act as an inhibitor of an enzyme at the start of the reaction
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What is this known as?
End-product inhibition
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Other cards in this set
Card 2
Front
What is the shape of a competitive inhibitor similar to?
Back
The substrate
Card 3
Front
Why does the competitive inhibitor need to be a similar shape to the substrate?
Back
Card 4
Front
How does this decrease the rate of reaction?
Back
Card 5
Front
Does a competitive inhibitor induce a permanent change to the enzyme?
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