Physiology – MCQ 69 – Molecules for cell signaling

Which one of the following molecules is used for cell signaling?
A. CO2
B. O2
C. NO
D. N2

Correct answer : C. NO

Nitric oxide plays an important role in cellular signalling. ( as a biological messenger )

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Physiology – MCQ 68 – Urinary concentrating ability of kidney

Urinary concentrating ability of the kidney is increased by: A. ECF volume contraction B. Increase in Renal blood flow C....

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