Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Textbook Question
Chapter 5.3, Problem 3TC
If a plant cell is placed in water containing no solutes, will toe cell eventually burst? Explain.
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Secretory vesicles fuse with the cell membrane to release their contents to the outside of the cell. In this process, the membrane of the secretory vesicle becomes part of the cell membrane because small pieces of the membrane are continually added to the cell membrane, one would expect the cell membrane to become larger and larger as secretion continues. The cell membrane stays the same size, however. Explain how this happens.
If plant cells were placed in a hypotonic solution would they burst like the blood cells? Why?
In which direction will WATER molecules (the small blue spheres) move across the
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Water will move from B to A
Chapter 5 Solutions
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Ch. 5.1 - Vicious Venoms Some of the most devastating...Ch. 5.1 - Prob. 1TCCh. 5.1 - Prob. 2CSCCh. 5.1 - Prob. 1CYLCh. 5.1 - diagram and describe the fluid mosaic model of...Ch. 5.1 - Prob. 3CYLCh. 5.2 - Prob. 1CYLCh. 5.2 - Prob. 2CYLCh. 5.3 - What is likely to have happened If, instead of...Ch. 5.3 - Prob. 1HYEW
Ch. 5.3 - Prob. 2TCCh. 5.3 - If a plant cell is placed in water containing no...Ch. 5.3 - Would a cell over use active transport to move...Ch. 5.3 - Prob. 5TCCh. 5.3 - Prob. 1CYLCh. 5.3 - Prob. 2CYLCh. 5.3 - Prob. 3CYLCh. 5.3 - Prob. 6TCCh. 5 - Animal cells are surrounded by________ fluid is...Ch. 5 - Which of the following cannot enter a cell by...Ch. 5 - Prob. 3MCCh. 5 - Prob. 4MCCh. 5 - Prob. 5MCCh. 5 - Prob. 1FIBCh. 5 - A membrane that is permeable to some substances...Ch. 5 - Prob. 3FIBCh. 5 - After each molecule, place the two-word term that...Ch. 5 - Prob. 5FIBCh. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - What are the five categories of proteins commonly...Ch. 5 - Prob. 4RQCh. 5 - Define hypotonic, hypertonic, and isotonic. What...Ch. 5 - Describe the following types of transport...Ch. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 1ACCh. 5 - Predict and sketch the configuration that ten...
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- Why is it advantageous for the cell membrane to be fluid in nature?arrow_forwardMark the flow of water with an arrow for cells that have been placed in solutions of differing tonicity. Indicate what will happen to a plant and animal cell under each of these conditions. Direction of osmosis Plant cell Animal cell shape shape minor swelling The solute concentration outside the cell is isotonic (or equal) to the inside of the cell. No change swelling and lysis plasmolysis crenation Reset Zoom (a) Outside isotonic The solute concentration outside the cell is hypertonic to the inside of the cell. (b) Outside hypertonic The solute concentration outside the cell is hypotonic to the inside of the cell. (c) Outside hypotonic Oo Solute Cytosol ©2018 McGraw-Hill Education. Check marrow_forwardDraw and label a cell lipid bilayer and diagram how the following transport processes take place: passive diffusion of oxygen into the cell, facilitated diffusion of potassium into the cell, active transport of sucrose into the cell. Using different symbols (circles for oxygen, squares for sucrose, and triangles for potassium ions), show the relative concentrations (gradients) of these substances on the inside and outside of the cell. For example, to show that oxygen enters the cell by going “down” its gradient, you would draw more circles on the outside of the cell than inside the cell. Be sure to show and label membrane proteins when appropriate, and show the electric membrane potential using “+”s (pluses) on one side and “-”s (minuses) on the other side of the membrane. Also show the proton pump which uses ATP as a source of energy.arrow_forward
- Under what environmental conditions does water move into a cell byosmosis?arrow_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_forwardA 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.arrow_forward
- 1) A plant cell with a pressure potential of 5 bars and an osmotic potential of -9 bars is in equilibrium with a surrounding solution that is open to the air. What is the water potential of the surrounding solution? 2) A plant cell, when initially placed in pure water, has an osmotic potential of -4 bars and a pressure potential of +2 bars. a) Which way will water diffuse? b) When will net diffusion stop? c) When equilibrium is reached, what are the cell's osmotic potential and pressure potential values?arrow_forwardWhich of the following is most likely to enter the cell via endocytosis when moving along the concentration gradient? A B с D a small hydrophobic molecule a large hydrophobic molecule a small hydrophilic molecule a large hydrophilic moleculearrow_forwardParamecium caudatum lives in a hypotonic solution. Excess water is removed from the cell via structures called contractile vacuoles. Given what you know about vacuoles (refer to Table 3.3, p. 68) and what you know about cells able to contract, suggest the type of transport that occurs when water is moved out of Paramecium.arrow_forward
- You have an intact flaccid cell with a solute potential of -1.22MPa, you dropped the cell in a solution of 4M concentration at 20°C. a) In which direction water will flow? Why? b) At equilibrium, what will be the cell and solution: a. Water potential b. Osmotic potential c. Pressure potentialarrow_forwardPlants use the proton electrochemical gradient across the vacuole membrane to power the accumulation of salts and sugars in the organelle. This accumulation creates hypertonic conditions in the vacuole. Why does this not result in the plant cell swelling and bursting?arrow_forwardThe following diagram shows the effect of osmotic concentration on a plant cell. Using the terms isotonic, hypertonic and hypotonic identify what is happening in each cell and state what each term means and which cell it applies to. Plant cells cell wall -nucleus cell membrane -central vacuole -chloroplast Paragraph B I U v A !!! liliarrow_forward
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