Question
Biology Question on Parts of the digestive system
Which of the following digestive juices has the minimum pH value?
A
Bile
B
Gastric juice
C
Saliva
D
Pancreatic juice
Answer
Gastric juice
Explanation
Solution
Bile is an alkaline viscous fluid, yellow to green in colour and having a pH of 7.8-8.6. Saliva is secreted by salivary gland and its pH is about 6.8. Gastric juice is secreted by the gastric gland in stomach and its pH value is 1-2.5 and pancreatic juice is colourless watery fluid and slightly alkaline. Its pH is 7.5-8.0. Therefore gastric juice has minimum pH value.