

Cell Signalling and Transduction - Medical Science
Q1: Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*?A Because other body tissues use a different signaling molecule
B Because nitric oxide cannot cross cell membranes and enter the blood
C Because nitric oxide breaks down quickly and thus cannot travel far
D None of the above
ANS:C - Because nitric oxide breaks down quickly and thus cannot travel far Because NO has tendency to get converted into nitrates and nitrites rapidly. |


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