Microbiology Mechanism of action of cholera toxin: September 2007, 2009 A Increase in c-AMP B Decrease in c-AMP C Activates Na+ K+ ATPase D Inhibit Na+ K+ ATPase 💡 Explanation Mechanism of action of cholera toxin: September 2007, 2009 ✓ Correct Answer: A. Increase in c-AMP