List of top Biomedical Engineering Questions on Human physiology asked in GATE BM

The volume percentage of oxygen in inspired air is \(20%\) and that of expired air is \(16%\). A person is breathing at a rate of 12 breaths per minute. Each breath is 500 ml in volume. The cardiac output is 5 liters per minute. Assuming ideal, healthy lung and cardiac conditions, what is the change in percentage of oxygen in blood over 1 minute? (Round off the answer to one decimal place.)

The intracellular and extracellular concentrations (in mM) of three important ions are given. The relative permeability of the cell membrane to each ion is provided. Universal gas constant \(R=8.31~\mathrm{J/(mol\cdot K)\) and Faraday’s constant \(F=96500~\mathrm{C/mol}\). What is the \emph{absolute value} of the resting membrane potential (in mV) across the cell membrane at \(27^\circ\mathrm{C}\)? (Round off the answer to one decimal place.)}