EBK WHAT IS LIFE? A GUIDE TO BIOLOGY
3rd Edition
ISBN: 9781319030810
Author: PHELAN
Publisher: YUZU
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Chapter 3, Problem 9SA
Summary Introduction
To review:
The movement of water between a cell and a surrounding isotonic solution.
Introduction:
With reference to the concentration of the cytoplasm, the surrounding solution can be of three types - hypotonic (having a lower solute concentration), hypertonic (having higher solute concentration) and isotonic (having the same solute concentration as the cytoplasm).
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Describe the movement of water across the cell membrane.
Describe how a cell would react to a hypertonic orhypotonic solution.
A cell containing 2% sucrose solution is placed in a hypertonic solution.
A.) In one statement maximum, explain what a hypertonic solution is in reference to solute concentration.
B.) In one statement, predict the direction of osmosis ( movement of water)
C.) In one statement, predict the resulting change in the cell's shape.
Chapter 3 Solutions
EBK WHAT IS LIFE? A GUIDE TO BIOLOGY
Ch. 3 - Prob. 1SACh. 3 - Prob. 2SACh. 3 - Prob. 3SACh. 3 - Prob. 4SACh. 3 - Prob. 5SACh. 3 - Prob. 6SACh. 3 - Prob. 7SACh. 3 - Prob. 8SACh. 3 - Prob. 9SACh. 3 - Prob. 10SA
Ch. 3 - Prob. 11SACh. 3 - Prob. 12SACh. 3 - Prob. 13SACh. 3 - Prob. 14SACh. 3 - Prob. 15SACh. 3 - Prob. 16SACh. 3 - Prob. 17SACh. 3 - Prob. 18SACh. 3 - Prob. 1MCCh. 3 - Prob. 2MCCh. 3 - Prob. 3MCCh. 3 - Prob. 4MCCh. 3 - Prob. 5MCCh. 3 - Prob. 6MCCh. 3 - Prob. 7MCCh. 3 - Prob. 8MCCh. 3 - Prob. 9MCCh. 3 - Prob. 10MCCh. 3 - Prob. 11MCCh. 3 - Prob. 12MCCh. 3 - Prob. 13MCCh. 3 - Prob. 14MCCh. 3 - Prob. 15MCCh. 3 - Prob. 16MCCh. 3 - Prob. 17MCCh. 3 - Prob. 18MC
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- Distinguish between the following pairs of terms: a. diffusion; osmosis b. passive transport; active transport c. endocytosis; exocytosisarrow_forward1) Draw a model of the plasma membrane to form a cell. Include a tube embedded in the membrane. Show 2 water molecules inside the cell and 12 water molecules outside the cell. Indicate which way the water will move through the aquaporin with an arrow. a) Using your knowledge of membrane transport, which direction will the water molecules move through the aquaporin? Why? b) Why would water have a difficult time crossing the cell membrane? Keep in mind the structure of water in your answer. 2) Develop an explanation for the necessity of having kinks in the hydrophobic tail of the phospholipids that make up cell membranes. a) Develop an explanation for the necessity of having kinks in the hydrophobic tail of the phospholipids that make up cell membranes.arrow_forwardIndicate with an arrow which direction water would move through. What is the physical condition of the cell? What is the hypothetical concentrations of solvent and solute?arrow_forward
- Compare and contrast the following terms: Hypertonic solution and hypotonic solutionarrow_forwardName the solution in which the relative concentration of water molecules and the solute on either side of the cell is same.arrow_forwardExplain the effects of putting a cell into a hypotonic, hypertonic, or isotonic medium.arrow_forward
- In osmosis, water flows from hypertonic/hypotonic/isotonic solutions to hypertonic/hypotonic/isotonic solutions, until both solutions are hypertonic/hypotonic/isotonic.arrow_forwardCompare hypotonic, hypertonic, and isotonic solutionsarrow_forwardExplain the role of osmosis and that of osmotic pressure in controlling the movement of water across the cell membrane. Compare hypotonic, isotonic, and hypertonic solutions.arrow_forward
- Describe the difference between passive and active forms of transport across a cell membrane.arrow_forwardIf two solutions separated by a semi-permeable membrane are isotonic, can you conclude that they are in chemical equilibrium?arrow_forwardDescribe the osmotic challenges facing a cell placed in pure water or in a high-salt solution.arrow_forward
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