The average osmotic pressure of blood is about 7 atm.Therefore
A)the average blood pressure is about 7 atm.
B)the average pressure inside the body is about 7 atm above the external pressure.
C)a pressure of about 7 atm would be required to prevent osmosis if blood is in contact with pure water across a semipermeable membrane.
D)All of these are true.

Question

Quizplus · Accepted Answer

The average osmotic pressure of blood refers specifically to the pressure required to prevent osmosis if blood is in contact with pure water across a semipermeable membrane. It does not necessarily correlate to the average blood pressure or pressure inside the body, so options A and B are incorrect. Option C, however, correctly describes the relationship between blood osmotic pressure and the pressure needed to prevent osmosis.

The Average Osmotic Pressure of Blood Is About 7 Atm