Q1: What would the second diagram look like if the pores in the semipermeable membrane were too small to allow water molecules to pass through? Q2: What would the second diagram look like if the pores were large enough to let both water molecules and sugar molecules through? Q3: The ﬂuid in an IV bag is isotonic to blood. What change would you see in the red blood cells of a patient if a bag of a hypertonic solution was used in error? Sugar has just been added to a beaker of water. This beakeris divided by a semipermeable membrane-that is, amembrane with pores large enough to allow water moleculesto pass through, but too small for sugar molecules to pass.SugarWatermolecule moleculeSemipermeablemembraneWatermoleculeAfter a period of time, water molecules havemoved by osmosis from the right side of themembrane (which had a higher concentra-tion of water) to the left side of themembrane. The concentration of water onthe two sides of the membrane is now theSemipermeable .membranesame, and the movement of water moleculesis now the same in both directions.

Osmosis is a reversible process that allows the passage of solvent molecules from a region of higher…

Answered: Sugar has just been added to a beaker…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 5RE: Using the answer code on the right, indicate which membrane component is responsible for the...

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Q1: What would the second diagram look like if the pores in the semipermeable membrane were too small to allow water molecules to pass through? Q2: What would the second diagram look like if the pores were large enough to let both water molecules and sugar molecules through? Q3: The ﬂuid in an IV bag is isotonic to blood. What change would you see in the red blood cells of a patient if a bag of a hypertonic solution was used in error?

Sugar has just been added to a beaker of water. This beaker
is divided by a semipermeable membrane-that is, a
membrane with pores large enough to allow water molecules
to pass through, but too small for sugar molecules to pass.
Sugar
Water
molecule molecule
Semipermeable
membrane
Water
molecule
After a period of time, water molecules have
moved by osmosis from the right side of the
membrane (which had a higher concentra-
tion of water) to the left side of the
membrane. The concentration of water on
the two sides of the membrane is now the
Semipermeable .
membrane
same, and the movement of water molecules
is now the same in both directions.

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