試題詳解

29. Which of the following statements about the roles of gaseous signaling molecules in various biological processes is incorrect?
(A) Nitric oxide (NO) acts as a vasodilator in the cardiovascular system and plays a crucial role in regulating blood pressure.
(B) Carbon monoxide (CO) is exclusively a toxic byproduct of combustion and has no significant role in cellular signaling or physiological processes.
(C) Hydrogen sulfide (H2S) is involved in neuromodulation and has been shown to have protective effects in certain neurodegenerative diseases.
(D) In cancer biology, gaseous signaling molecules like NO can influence tumor growth and metastasis by modulating the tumor microenvironment.
(E) Gaseous signaling molecules play a role in the immune system, where they can modulate immune responses and inflammation.