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.Sugarmolecule moleculeWaterSemipermeablemembraneWatermoleculeAfter 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 onSemipermeablemembranethe two sides of the membrane is now thesame, and the movement of water moleculesis now the same in both directions.Figure 4.6In osmosis, water diffuses across a semipermeablemembraneOsmotic movement of water between a cell and the external environment iscritical for maintaining a constant water concentration in the cell, which itneeds to function properly.

Diffusion can be defined as a phenomenon in which the movement of particles occurs from lower…

Answered: Sugar has just been added to a beaker…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Related questions

Concept explainers

Question

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
molecule molecule
Water
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
Semipermeable
membrane
the two sides of the membrane is now the
same, and the movement of water molecules
is now the same in both directions.
Figure 4.6
In osmosis, water diffuses across a semipermeable
membrane
Osmotic movement of water between a cell and the external environment is
critical for maintaining a constant water concentration in the cell, which it
needs to function properly.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, anatomy-and-physiology and related others by exploring similar questions and additional content below.

Recommended textbooks for you

Human Anatomy & Physiology (11th Edition)

Anatomy and Physiology

ISBN:

9780134580999

Author:

Elaine N. Marieb, Katja N. Hoehn

Publisher:

PEARSON