WAEC - Biology (2010 - No. 29)
Which of the following pH values is the best for the action of the enzymes - renin and pepsin in the
stomach?
stomach?
pH2
pH7
pH8
pH9
คำอธิบาย
The suitable pH value for both renin and pepsin in the stomach is highly acidic, typically between 1.5 and 2.5; meaning they function best in a very low pH environment due to the stomach's production of hydrochloric acid. Since, pH 2 falls within that range, therefore option A is the correct answer.