GATE Biomedical Engineering Practice Quiz

Question 1

A red blood cell is placed in a solution with much lower osmolarity than its cytosol. Which membrane transport event occurs first and is primarily responsible for the cell swelling?

Accepted Answer

Water enters the cell by osmosis through the membrane, mainly via aquaporins

Question 2

The resting membrane potential becomes more negative when K+ permeability increases because:

Accepted Answer

More K+ leaves the cell, leaving behind impermeant anions

Question 3

Which transport process is electrogenic under normal physiological conditions?

Accepted Answer

Na+/K+ ATPase

Question 4

Which statement about ion channels is most accurate?

Accepted Answer

Open ion channels allow rapid passive movement of ions down their electrochemical gradients

GATE Biomedical Engineering — Mock tests

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