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Draw a conclusion about how

enzyme and substrate concentration
affects enzyme activity. Use the
graphs to draw your conclusion.
Explain what happens as the enzyme
and substrate concentrations
increase and consider why they begin
to stop increasing.

Draw a conclusion about how enzyme and substrate concentration affects enzyme activity-example-1
User Matlabit
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1 Answer

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Answer: See Below

Step-by-step explanation:

We have to think about how enzymes interact with the substrate. Enzymes bind to substrate in their active site to increase the rate of a reaction. Enzymes typically only have 2 active sites and so can only bind two substrate molecules at a time.

Looking at the first graph of increasing enzyme concentration we can see that it increases quite drastically and then tapers off to where the last three bars are equal to each other. In this case There is excess enzyme and not enough substrate. More enzyme could be added but if there is not enough substrate to bind all of the active sites then the rate of the reaction will stay the same. In this example the amount of substrate is the limiting factor.

The second graph follows the same principle however this time the enzyme is the limiting factor. Since enzymes have a limited amount of active sites they can only bind so much substrate so increasing the concentration of substrate when all the active sites are bound will not increase the rate of the reaction.

Both of these graphs would be considered "Logarithmic Curves" because of the way they taper off.

User Anikhan
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