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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
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 is : (d) R and R
Both thermophiles and psychrophiles will show same enzymatic reaction graph. Mostly proteinaceous enzymes are labile to temperature. Thermophiles live 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, enzymes get denatured, hence reaction rate decreases.