Question

drinking alcohol can cause dehydration, which makes the blood hypertonic. which option best describes the consequences of this hypertonic blood?
hypertonic blood draws water out of the interstitial fluid, which makes the interstitial fluid hypertonic. this, in turn, draws water out of the cells.
hypertonic blood will lose water to the interstitial fluid, which makes the interstitial fluid hypertonic. this, in turn, draws water out of the cells.
hypertonic blood draws water out of the interstitial fluid, which makes the interstitial fluid hypotonic. this, in turn, causes water to move into the cells.
hypertonic blood forces water into the interstitial fluid, which makes the interstitial fluid hypotonic. this, in turn, makes the interstitial fluid lose water to the cells.

Explanation:

In osmosis, water moves from a region of lower solute concentration (hypotonic) to a region of higher solute concentration (hypertonic). Hypertonic blood has a higher solute - concentration than the interstitial fluid. So, water moves from the interstitial fluid into the blood, making the interstitial fluid hypertonic. Then, as the interstitial fluid is now hypertonic relative to the cells, water moves out of the cells.

Answer:

Hypertonic blood draws water out of the interstitial fluid, which makes the interstitial fluid hypertonic. This, in turn, draws water out of the cells.