Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 36, Problem 5TYU
Summary Introduction
Introduction: Property of water that determines the way it will flow, which depends on the concentration of solutes in water and pressure being exerted on water, is known as water potential. If the concentration of a medium surrounding the cell is higher than the inside, the cell water will move toward the cell.
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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?
Choose the correct route of water transfer through the cell wall of root hair , cell membrane of cortex cell and epidermis cell Root hair Epidermis cells Cortex cells a imbibition osmosis osmosis b osmosis diffusion osmosis c active transport osmosis diffusion d permeability active transport diffusion
(A)
(B)
(C)
(D)
1. Channel proteins used for the bulk passage of water molecules across the cell membrane?2. The tonicity of the extracellular fluid that maintains the turgid appearance of plant cells?3. The tonicity of the extracellular environment causing plasmolysis of plant cells?4. Plant cells are said to be flaccid in this type of cellular environment or solution?
Chapter 36 Solutions
Campbell Biology (10th Edition)
Ch. 36.1 - Why is long-distance transport important for...Ch. 36.1 - Prob. 2CCCh. 36.1 - Some plants can detect increased levels of light...Ch. 36.1 - WHAT IF? If you prune a plant's shoot tips, what...Ch. 36.1 - Prob. 5CCCh. 36.2 - If a plant cell immersed in distilled water has a...Ch. 36.2 - Prob. 2CCCh. 36.2 - How would the long-distance transport of water be...Ch. 36.2 - Prob. 4CCCh. 36.3 - Prob. 1CC
Ch. 36.3 - Prob. 2CCCh. 36.3 - Prob. 3CCCh. 36.3 - WHAT IF? Suppose an Arabidopsis mutant lacking...Ch. 36.3 - MAKE CONNECTIONS How are the Casparian strip and...Ch. 36.4 - Prob. 1CCCh. 36.4 - Prob. 2CCCh. 36.4 - WHAT IF? If you buy cut flowers, why might the...Ch. 36.4 - Prob. 4CCCh. 36.5 - Prob. 1CCCh. 36.5 - Prob. 2CCCh. 36.5 - Prob. 3CCCh. 36.5 - WHAT IF? Apple growers in Japan sometimes make a...Ch. 36.6 - How do plasmodesmata differ from gap junctions?Ch. 36.6 - Prob. 2CCCh. 36.6 - WHAT IF? Suppose plants were genetically modified...Ch. 36 - How did the evolution of xylem and phloem...Ch. 36 - Is xylem sap usually pulled or pushed up the...Ch. 36 - Prob. 36.3CRCh. 36 - Prob. 36.4CRCh. 36 - Prob. 36.5CRCh. 36 - By what mechanisms is symplastic communication...Ch. 36 - Prob. 1TYUCh. 36 - Prob. 2TYUCh. 36 - Prob. 3TYUCh. 36 - Photosynthesis ceases when leaves wilt, mainly...Ch. 36 - Prob. 5TYUCh. 36 - A plant cell with a of -0.65 MPa maintains a...Ch. 36 - Compared with a cell with few aquaporin proteins...Ch. 36 - Prob. 8TYUCh. 36 - EVOLUTION CONNECTION Large brown algae called...Ch. 36 - SCIENTIFIC INQUIRY INTERPRET THE DATA A Minnesota...Ch. 36 - SCIENTIFIC INQUIRY Cotton plants wilt within a few...Ch. 36 - WRITE ABOUT A THEME: ORGANIZATION Natural...Ch. 36 - Prob. 13TYU
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- Explain what would happen if a plant cell was placed in a hypotonic environment and why (be sure to include solute concentrations, water movement and turgor pressure in your explanation)?arrow_forward(a)Aquaporins and membrane channel protein in plant and animal,they permit the movement of water across the membrane.Explain why this is necessary.(b) Explain the importance of cell surface membrane to cellarrow_forwardPlants under biotic stress will rapidly increase concentration of reactive oxygen species (ROS). (i) The above oxidative burst will happen at cellular level. Describe the observable symptoms by naked eyes and explain the symptoms development at cellular level. (ii) Explain the roles of ROS in plant defense. (iii) Which part of plant cell initiates oxidative burst?arrow_forward
- represented by: (i) pivot. (ii) string. (iii) fixed support. ing ey. 24. The apparatus below were used to investigate a certain physiological process in plants. Black cloth Air out Soda lime- nd Lime water Air in Bicarbonate indicator Grease Potted (a) State which physiological process was being investigated. (b) Give the function of the following in the experiment below (i) soda lime. (ii) bicarbonate indicator. (iii) black cloth. (iv) grease. (v) lime water. ne er.arrow_forwardA plant cell with a ΨS of -0.65 MPa maintains a constantvolume when bathed in a solution that has a ΨS of -0.30 MPaand is in an open container. The cell has a(A) ΨP of +0.65 MPa.(B) Ψ of -0.65 MPa.(C) ΨP of +0.35 MPa.(D) ΨP of 0 MPaarrow_forwardCompared with a cell with few aquaporin proteins in itsmembrane, a cell containing many aquaporin proteins will(A) have a faster rate of osmosis.(B) have a lower water potential.(C) have a higher water potential.(D) accumulate water by active transport.arrow_forward
- all the option are the same as shownarrow_forwardDefine and compare the terms within each of the following pairs, including an outline of the role of each member of the pair in a typical plant:(a) Channel protein; proton pump(b) Nitrate; potassium(c) Gibberellic acid; abscisic acidarrow_forwardWhen plant cells are in a hypotonic medium, they (a) undergo plasmolysis (b) build up turgor pressure (c) wilt (d) decrease pinocytosis (e) lose water to the environmentarrow_forward
- Suppose that a scientist exposes a leaf to CO2 labeled with radioactivecarbon-14, which is incorporated into organic compounds inphotosynthetic cells. At various times after exposure, the scientist candetermine the location of the radioactive carbon in the plant. In whattissues would you expect to find the radioactive material immediatelyafter exposure to the labeled carbon? What about during transport?When transport is complete, will the radioactive material be in plantparts above the leaf, below the leaf, or both?arrow_forward(1) A plant cell may burst when : (A) Turgor pressure equalises wall pressure. (B) Turgor pressure exceeds wall pressure. (C) Wall pressure exceeds turgor pressure. (D) None of the abovearrow_forwardECll Cell Cell wall wall wall Cell membranė • Cell mėmbrane Cell membrane Plant cell (a) at equilibrium (b) plasmolyzed (c) turgid Figure 4.6: The effect of (a) isotonic solution, (b) hypertonic solution and (c) hypotonic solution on plant cells. Arrows show direction of water movement. Fig 4.6 q1 Homework • Unanswered In figure 4.6, which image (a, b, or c) would represent a plant cell that has been place in a 20% salt solution? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Fig 4.6 a b Fig 4.6 b [) Fullscreen Fig 4.6 c © bluedoor, LLCarrow_forward
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