why the enzyme activity does alter based on the change of temperature?

Answer 1

All enzymes are protein in nature. They have an OPTIMUM temperature to be active and this is normally in a narrow range.

Outside this small temperature range their activities slow down and,at relatively high temperature the actual chemical structure of the enzymes are destroyed (denatured) and their activiyies cease altogether.

Hope this answers your question.

Answer 2

Temperature affects the speed of the molecules. As the temperature increases, the speed increases more enyme molecules and substrate molecules collide, the subrate molecules then fit into the active site of the enyme, form the enyme-substrate complex and ultimately the product is formed. The rate of formation of the product or the activity of the enzyme wil be maximum at the optimum temperature, which in the case of the body enzymes is 37 degrees celsius, the normal body temperature.
Once the temperature decreases below the optimum the enzymes become inactive and the rate of the reaction slows due to less collisions.
Once the temperature increases above the optimum, the ezyme denatures. Denaturation is the loss in the shape of the active site of the enyme to which the subsrate is complementary to (the lock and key hypothesis) due to the breakage of bonds in the R group of the polypeptide chain (hydrogen bonds, hydrophobic interations, ionic and disulphide bonds). So when the shape of the active site is lost, the substrate (key) cant fit into the active site (lock) and so the enzyme-substrate complex cant be formed and the reaction cant proceed.

Answer 3

As u already be responsive to that the Enzymes are extremely mushy to the main important actual situations as temperature and additionally others as pH. in case you preserve an enzyme under or above it is respective variety of interest, the peptide linkages contemporary in it is fundamentals tructure gets disrupted, premier to alteration interior the form of the enzyme. as quickly as an enzyme is distorted, it is not waiting to accomplish it is particular funtion, finally premier to an entire failure of the full mechanism it grew to become into an portion of. as a consequence, on a similar time as working with the enzymes it is totally mandatory to benefit it is Sensitivity to such imp. attributes as some are Temp. particular (thermophiles, mesophiles, pschrophiles) or, pH mushy (acidophiles, basophiles), and so on.

Answer 4

simple kinetics. higher temperature means greater molecular motion and that molecules have a greater chance of colliding in the right configuration to lead to a successful reaction. However, too high a temperature (as little as 50-60C) can lead to denaturation of the enzyme.

Answer 5

some enzymes which are proteins unfold better at higher temp.

Answer 6

Yep- higher temps affect molecules.