Question

Given below are the four schematics that describe the dependence of the rate of an enzymatic reaction on temperature. Which of the following combinations is true for thermophilic and psychrophilic organisms?

(A) P and P 

(B) P and S 

(C) P and R 

(D) R and R

Answer 1

Correct Option :- (D) R and R

Explanation :- 

Being mostly proteinaceous enzymes are liable to temperature. Thermophiles are living at very high temperature while psychrophiles live in the range of –20°C to +10°C. In either case rising temperature will first raise the rate of reaction but if temperature is still raised continuously enzyme get denatured hence reaction rate decreases.