The optimum pH of enzyme maltase is:
Correct answer: C. 6.1 - 6.8
- A. 4.5
- B. 5.5
- C. 6.1 - 6.8
- D. 6.7 - 7
Explanation
Maltase is an enzyme that catalyzes the hydrolysis of the disaccharide maltose to the simple sugar glucose. The enzyme is found in plants, bacteria, and yeast; in humans and other vertebrates, it is thought to be synthesized by cells of the mucous membrane lining the intestinal wall. Optimum pH is the pH value at which an enzyme can work best. The optimum pH of maltase falls within the range of 6.1 - 6.8. Options A, B, and D are incorrect as they suggest pH values outside the actual range of maltase's optimum pH.
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About Factors Affecting Enzyme Action
Enzyme activity changes with temperature, pH, substrate concentration and enzyme concentration because these factors affect molecular collisions and the active site. Questions also examine optimum conditions, denaturation and inhibition, while distinguishing a fall in activity caused by unsuitable conditions from permanent enzyme damage.
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