Without enzymes to act as catalysts, reactions in the body would take MUCH longer to occur (at the same temperature). It is said that they lower the ......... energy of the reaction.
Activation
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In catabolic reactions, the substrate is:
Broken down into products which are put into use elsewhere.
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In anabolic reactions, the substrate is:
Formed from two extraneous things and then released for some purpose.
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In the ‘induced fit’ model of enzyme action, the active site:
Adapts to the shape of the substrate to break it down into products.
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Some enzymes require binding to a non-protein group ‘co-factor’ to help them work; these co-factors typically modify the shape of the active site. In this process, what is a holoenzyme?
The enzyme/co-factor combination after binding
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The word to describe an organic molecule that binds loosely to the active site, enabling the enzyme-substrate complex to form.
Coenzyme
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The word to describe an organic or metal ion molecule that binds tightly to the active site, enabling the enzyme-substrate complex to form.
Prosthetic group
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There is an optimal temperature for enzymatic reactions because:
Too high a temperature would cause irreversible denaturing of active sites, and too low a temperature would reduce rate of successful enzyme/substrate collisions.
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Other cards in this set
Card 2
Front
In catabolic reactions, the substrate is:
Back
Broken down into products which are put into use elsewhere.
Card 3
Front
In anabolic reactions, the substrate is:
Back
Card 4
Front
In the ‘induced fit’ model of enzyme action, the active site:
Back
Card 5
Front
Some enzymes require binding to a non-protein group ‘co-factor’ to help them work; these co-factors typically modify the shape of the active site. In this process, what is a holoenzyme?
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