Which of the following transpo processes is passive?

A. Co-transpo of Na+ ion and a molecule into cell

B. Exchange of K+ ion outside the cell for Na+ ion inside the cell

C. Flow of H2O through cell membrane by osmosis

D. Uptake of molecules into cell by endocytosis

Correct Answer: Flow of H2O through cell membrane by osmosis

Description: Osmosis is the movement of water molecules across a semi-permeable membrane from a region of Lower solute concentration to an area of higher solute concentration. It is passive in nature. (REF: TEXTBOOK OF MEDICAL PHYSIOLOGY GEETHA N 2 EDITION, PAGE NO - 3)

Category: Physiology

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