Multiple Choice
Which of the following does not stimulate the secretion of HCl in the stomach?
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23. The Digestive System
The Stomach
Multiple Choice
Which of the following is not one of the functions of stomach acid?
A
Aids in the digestion of proteins
B
Activates pepsinogen to pepsin
C
Neutralizes alkaline substances
D
Kills bacteria and pathogens
Verified step by step guidance1
Understand the role of stomach acid: Stomach acid, primarily hydrochloric acid (HCl), plays a crucial role in digestion and protection against pathogens.
Identify the functions of stomach acid: It aids in protein digestion by denaturing proteins and activating the enzyme pepsinogen into pepsin, which further breaks down proteins.
Consider the protective role: Stomach acid helps kill bacteria and pathogens that enter the stomach, providing a defense mechanism against infections.
Analyze the options: The options provided include aiding in protein digestion, activating pepsinogen, neutralizing alkaline substances, and killing bacteria.
Determine the incorrect function: Stomach acid does not neutralize alkaline substances; instead, it creates an acidic environment. Therefore, the function 'Neutralizes alkaline substances' is not correct.
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