Question

Salty snacks like peanuts and pretzels can often be found for free at gatherings where beverages are for sale. Vendors hope that the salty snacks will make consumers thirsty so they will purchase something to drink. Why does this work?

A) The salty snacks makes people restless, so they desire some water to make them calmer.
B) The salt in the body creates a hypertonic solution around cells, which causes water to diffuse out of cells and make them crenate.
C) The salt in the body creates a hypotonic solution around cells, which causes water to diffuse into cells and make them cytolyse.
D) The salt in the body creates an isotonic solution around cells, which causes water to diffuse into and out of cells which makes them unstable.

Answer 1

B.

The loss of water from the cells induces thirst.

Answer 2

Answer;

-The salt in the body creates a hypertonic solution around cells, which causes water to diffuse out of cells and make them crenate.

Explanation;

-A hypertonic solution is a solution with more solute (salt) molecules than the solvent molecules (water).

-When the salt in the body creates a hypertonic solution around the cells, water moves osmotically out of the cell , that is from a region of high concentration to a region of low concentration. The loss of water by the cells makes them become crenated.