Microbiology Which of the following is TRUE about cholera toxin? A Increases the levels of intracellular cyclic GMP B Acts through the receptor the opiates C Causes continued activation of adenylate cyclase D Inhibits the enzyme phosphodiesterase 💡 Explanation Which of the following is TRUE about cholera toxin? ✓ Correct Answer: C. Causes continued activation of adenylate cyclase