Factors effecting enzyme activity Flashcards
How does temperature effect enzyme activity?
closer the temperature to 37 degrees = more activity
Describe the temperature rate of reaction graph
As the temperature increases so does the rate however when optimum temperature in reached (37) rate then falls rapidly as temperature continues to increase.
Explain why temperature effects rate of enzyme activity
This is because the higher then temperate the more heat and energy the enzyme and substrate have more kinetic energy so there are more collisions
What happens to the rate of activity after optimum temperature is reached and why?
After optimum temp is reached activity falls rapidly this is due to the fact the bonds holding enzymes together break causing the enzyme to denature and therefore the substrate cant bond.
How does pH effect enzyme activity?
if pH is too low or too high enzymes can not bond
What happens if pH is too low or too high?
This affects the bonds and denatures enzymes
Describe pH/enzyme activity graph
As the pH increases towards pH 8 (optimum pH) the enzyme activity also increases when reaching pH 8 the rate of enzyme activity is at its peak however after pH 8 is reached enzyme activity rapidly decreases
At a low pH …
reaction rate is low
-because the enzyme is denatured
At optimum pH …
reaction rate is at its highest
-because the enzyme hasn’t denatured at optimum
At a high pH …
reaction rate is decreasing
-because the enzyme is denatured
At a low temp …
reaction rate is low
-because there is less kinetic energy between the enzyme and the substrate
At optimum temp …
reaction rate is at its highest
-because optimum amount of collisions are taking place
At high temp …
reaction rate is decreasing
-because the enzyme is denatured
What is optimum pH?
pH 8
This is before enzymes become denatured
What is optimum temp?
37 degrees celciols
This is when the most amount of collisions take place
