Question

Optimum temperature for the enzyme activity for the most enzyme is
A. $40^\circ - 65^\circ$C
B. $30^\circ - 45^\circ$C
C. $20^\circ - 35^\circ$C
D. $15^\circ - 25^\circ$C

Answer 1

Enzymes are biological catalysts that quicken substance responses in living beings. The movement of a protein can be estimated by observing either the rate at which a substrate vanishes or the rate at which an item frames.

Complete answer:
Catalysts bring down the initiation energy of a response - that is the necessary measure of the energy required for a response to happen. They do this by an official to a substrate and holding it in a manner that permits the response to happen all the more proficiently. Components that disturb protein structure incorporate temperature and pH; calculates that influence impetuses generally incorporate reactant or substrate focus and impetus or catalyst fixation.
Concentration of Substrate
The overabundance substrate particles can't respond until the substrate previously bound to the chemicals has responded and been delivered (or been delivered without responding).
Concentration of Enzyme
At the point when the centralization of the chemical is fundamentally lower than the convergence of the substrate (as when the quantity of taxicabs is far lower than the quantity of holding up travelers), the pace of a protein catalyzed response is legitimately reliant on the catalyst focus
Temperature
For some proteins, denaturation happens somewhere in the range of ${\rm{45^\circ C}}$ and ${\rm{55^\circ C}}$. Moreover, even though a chemical may seem to have the greatest response rate somewhere in the range of 40°C and 50°C, most biochemical responses are completed at lower temperatures since proteins are not steady at these higher temperatures and will denature following a couple of moments.
Hydrogen Ion Concentration (pH)
Since most catalysts are proteins, they are touchy to changes in the hydrogen particle fixation or pH. Catalysts might be denatured by extraordinary degrees of hydrogen particles (regardless of whether high or low); any adjustment in pH, even a little one, changes the level of ionization of a chemical's acidic and fundamental side gatherings and the substrate segments too

So, the correct answer is option B.

Note:
In non-enzyme catalyzed responses, the response rate increases as the grouping of reactants is expanded. In a compound catalyzed response, the response rate at first increments as the substrate focus is expanded however then starts to level off, with the goal that the expansion in response rate turns out to be less and less as the substrate fixation increments.