system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Toxin acting on cGMP-
assistant
The correct answer is  Ans. is 'a' i.e., Heat stable E. coli toxin . Cholera toxin (CT) and labile toxin of E.coli (LT) act by activating cAMP. . Stable toxin of E.coli acts by activating cGMP. Remember . Though the mechanism of labile toxin of E.coli (LT) and cholera toxin (CT) is same, cholera toxin is about a hundred times more potent than LT.