Question

1. what causes the volume of the solution in the thistle tube to change?

a. water is moving from the beaker into the thistle tube of corn syrup.
b. corn syrup is moving from the thistle tube into the beaker.
c. water is moving from the thistle tube of corn syrup into the beaker.
d. corn syrup is moving from the beaker into the thistle tube.

Explanation:

Corn syrup has a higher solute concentration than pure water. Osmosis is the movement of water across a semipermeable membrane from an area of lower solute concentration (higher water potential) to an area of higher solute concentration (lower water potential). Here, water moves from the beaker (pure water, lower solute concentration) into the thistle tube with corn syrup, increasing the volume of the solution in the tube.

Answer:

A. Water is moving from the beaker into the thistle tube of corn syrup.