Which of the following statements about the movement of substances through the cell
membrane is TRUE?
A) Water freely moves across cell membranes.
B) Water moves across the cell membranes only through protein channels.
C) Water and electrolytes cannot move across cell membranes.
D) Electrolytes freely move across cell membranes.
Question 2
Water functions as an excellent solvent, which means that
A) water flushes toxins out of the body.
B) water helps to regulate body temperature.
C) most solutes (particles) will dissolve in water.
D) water helps to maintain blood volume.