Question

solute concentrations are not only important for red blood cells, but also for the organs. the nutrients for the brain are delivered by the blood vessels. the wall of the blood vessels are membranes that allow free water to move between the blood and the matrix of the brain. in the image, is the blood hypertonic, isotonic, or hypotonic compared to the matrix of the brain? hypertonic isotonic hypotonic incorrect. the blood is hypotonic compared to the matrix of the brain because it has less solutes than the matrix. now, which way will free water molecules move? from blood to matrix from matrix to blood

Explanation:

Step1: Recall osmosis principle

Osmosis is the movement of water from an area of lower solute - concentration to an area of higher solute - concentration.

Step2: Identify solute - concentration differences

The blood is hypotonic compared to the brain matrix, meaning it has a lower solute concentration.

Step3: Determine water movement

Water will move from the area of lower solute concentration (blood) to the area of higher solute concentration (brain matrix).

Answer:

From blood to matrix