What is the pH of gastric juices prior to being mixed with food?
a. 1.0 c. 5.0
b. 3.0 d. 7.0
A
The pH of gastric juice is 1.0, but when mixed with food, it rises to 2.0 to 3.0 . Gastric juice dissolves soluble foods and has bacteriostatic action against swallowed microorganisms. The composition of gastric secretions varies depending on a variety of factors, including flow rate, volume, and time of day. In addition, whereas pain, fear, and rage inhibit gastric secretion, aggression and hostility stimulate it.
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