Which of These Is a Function of Intrinsic Factor

question 23

Multiple Choice

Which of these is a function of intrinsic factor?

• A)It is secreted by salivary glands,and is necessary for digestion of vitamin B₁₂.
• B)It is secreted by parietal cells in the gastric mucosa,and its main function is causing insulin release.
• C)It is secreted in the stomach,and its main function is activating pepsinogen into pepsin.
• D)It is secreted by the small intestine mucosa,and its main function is initiating the intrinsic electrical activity of the pacemaker cells in the stomach. 
• E)It is secreted in the stomach,and a deficiency of it would cause anemia.

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