Toxins that increase the cyclic AMP content of the intestinal mucosa cause diarrhoea because they:

Question

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increase Na+ absorption in the small intestine

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increase Cl- secretion into the intestinal lumen

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increase K+ secretion into the colon

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increase Na+/K+ co-transport K+ secretion into the colon

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none of the above

1.	Toxins that increase the cyclic AMP content of the intestinal mucosa cause diarrhoea because they:
A.	increase Cl- secretion into the intestinal lumen
B.	increase Na+ absorption in the small intestine
C.	increase K+ secretion into the colon
D.	increase Na+/K+ co-transport K+ secretion into the colon
E.	none of the above
Answer» B. increase Na+ absorption in the small intestine

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