10 free MCAT practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
MCAT Practice Test 14Tutor mode
Question 1 of 10
Biological and Biochemical Foundations of Living Systems
An isolated axon is moved into a bathing solution in which the extracellular Na+ concentration is halved, with an impermeant cation added to keep osmolarity constant. Compared with the control, which change is most likely?