The Bacterium Vibrio Cholerae Releases a Toxin That Blocks a Channel

Multiple Choice

The bacterium Vibrio cholerae releases a toxin that blocks a channel protein in the membranes of cells that line the intestine. This toxin prevents the movement of sodium ions from the inside of the intestine into cells. If the sodium ions could not move into the cells, how would this affect the movement of water between the inside of the intestine and the cells?

A) Water would leave the cells and enter the intestines by facilitated diffusion.
B) Water would leave the intestines and enter the cells by osmosis.
C) Water would leave the cells and enter the intestines by osmosis.
D) The movement of water would not be affected.
E) Water would leave the intestines and enter the cells by facilitated diffusion.