Which Organ System Maintains the Normal Level of HCO₃^- at 24

question 64

Multiple Choice

Which organ system maintains the normal level of HCO₃^- at 24 mEq/L?

• A)liver
• B)lung
• C)renal
• D)spleen

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Definitions:

Levorotatory

Describing a substance that rotates the plane of polarized light to the left or counterclockwise.

Racemic Mixture

A mixture containing equal amounts of left- and right-handed enantiomers of a chiral molecule, making it optically inactive.

Enantiomer

One of a pair of molecules that are mirror images of each other and cannot be superimposed, often possessing different biological activities.

Polarimetry Tube

A laboratory device used to measure the rotation of polarized light as it passes through optically active substances.