Question

solute concentrations are not only important for red blood cells, but also for the organs of the body, like the brain. the nutrients for the brain are delivered by the blood vessels. the wall of the blood vessels are semi - permeable 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? 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: Understand osmosis principle

Osmosis is the movement of water from an area of lower solute concentration (hypotonic) to an area of higher solute concentration (hypertonic) through a semi - permeable membrane.

Step2: Analyze solute concentration

The blood is hypotonic compared to the brain matrix (as per the given information that blood has less solutes). So, water will move from the region of lower solute concentration (blood) to the region of higher solute concentration (brain matrix).

Answer:

From blood to matrix