Most vertebrates maintain homeostasis in regard to the total solute concentrations of their extracellular fluids and in regard to concentrations of specific inorganic ions.Which of the following ions should be excluded from consideration in the extracellular regulation of their concentration?
A)Fe ions
B)Ca ions
C)Mg ions
D)Na ions
E)Cl ions

Question

Quizplus · Accepted Answer

Iron ions (Fe ions) are not typically found in high concentrations in extracellular fluids and therefore are not a major part of the homeostasis regulation of vertebrates. The other ions listed (Ca, Mg, Na, and Cl) are all important for maintaining proper physiological function and are tightly regulated by the body.

Most Vertebrates Maintain Homeostasis in Regard to the Total Solute