![]() what happens in competitive inhibition? Higher, slower The. The substrate molecule have to wait for an active site to be empty. Instead, they block the active site so no substrate molecules can get it. Then, it would curve and go vertically because there is not enough enzyme for all the substrate molecules so increasing the substrate concentration has no effect on the rate of reaction What would the shape of a graph be for substrate concentration? Molecules that bind to the enzyme that they inhibit What are enzyme inhibitors? Competitive inhibitors compete with the substrate molecules to bind to the active site, but no reaction takes place. ![]() However, if the amount of substrate is limited, there comes a point where there's more than enough enzyme molecules to deal with all the available substrate, so adding more enzyme has no further effect because all the substrate is being used so any more enzymes added won't be able to make any more products because no substrate is binding to their active site as none is available How does enzyme concentration affect the rate of reaction? It induces a change in the shape of the enzyme, which changes the shape of the active site so substrate molecules can no longer bind to the active site What does the binding of the non competitive inhibitor to an alternative site result in in the enzyme? The competitive inhibitor will take up nearly all the active sites and hardly any of the substrate will get to the enzyme, it will slow down the rate of reaction by a lot, until all the substrate molecules have eventually been turned into products What happens to the rate of the reaction if there's a high concentration of competitive inhibitor? It would be a curve, it would increase at first because the substrate concentration is increased so more enzyme substrate complexes can be formed. ![]() ![]() So increasing the concentration of enzyme molecules increases the rate of reaction. PH 7 (neutral) A what pH do most human enzymes work best at? Oh 2 which is useful as its found in the stomach What pH is pepsin and where is it found? The more enzyme molecules there are in a solution, the more likely a substrate molecule is to collide with an enzyme molecule and form an enzyme substrate complex and so a product. ![]()
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