Chapter 5 The Working Cell Scarsdale Public Schools-Books Pdf

Chapter 5 The Working Cell Scarsdale Public Schools
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Chapter 5 The Working Cell, 6 Complete the table that compares diffusion osmosis and facilitated diffusion. Diffusion Osmosis Facilitated diffusion, Is energy required No No No. from the cell, Description The movement of a The diffusion of water Diffusion of a substance down its. substance from an area of across a semipermeable concentration gradient through a. high concentration to an membrane transmembrane protein channel. area of low concentration within the plasma membrane. 7 What feature does diffusion osmosis and facilitated diffusion all share. They are all types of passive transport, 8 A cell is placed into a beaker containing a 4 sucrose solution The cell contains a 1 sucrose. solution Use an arrow to illustrate the direction in which water will diffuse in the figure below. Assume that the cell s membrane is not permeable to the sucrose. 9 Complete the table that compares terms associated with tonicity. Isotonic solution Hypotonic solution Hypertonic solution. Each term refers to Two solutions that A solution that has less A solution that has more. have the same solute solute than the solution it solute than the solution it. concentrations is being compared to is being compared to. Effect on a plant cell Flaccid Turgid Shriveled, Effect on an animal cell Normal Lyse Shrivel.
Nonpolar is to diffusion as is to facilitated diffusion. 11 Which of the following statements regarding transport across a plasma membrane is false. a Passive transport requires an input of energy from the cell. b Osmosis is the diffusion of water across a selectively permeable membrane. c Substances always travel down their concentration gradient in passive transport. d Facilitated diffusion requires a specific transport protein found in the membrane. 34 Copyright 2015 Pearson Education Inc, DESIGN SERVICES OF. 152826 Cust Pearson Au Reece Pg No 34, REEC7833 08 C05 PRF indd 34 Guide for Campbell Biology Concepts Connections 8e. Short Normal, S4 CARLISLE 29 10 14 12 01 PM, Title Active Reading Publishing Services. Chapter 5 The Working Cell, True or false Aquaporins form the specific protein channel through which water diffuses If. false make it a correct statement, 13 Dr Agre s research into aquaporins hinged on two key observations List both observations.
The antibody they made did not bind to any part of the Rh antigen and the antibody bound. to red blood cells in large quantities, 14 In contrast to passive transport active transport pumps a substance its gradient. 15 You are sailing on Lake Superior from Copper Harbor Michigan to Isle Royale National. Park A sudden storm causes your sailboat to spring a leak You immediately grab a bucket. and begin bailing water out of the boat Briefly explain how your predicament could be used. as an analogy to help explain both active and passive transport. If you simply let the water flow into the boat then water will travel down its concentration gradi. ent into your boat until the gradient is abolished your boat sinks If you want your boat to stay. afloat then you simply bail water out of the boat In effect you are moving water against its con. centration gradient in order to maintain that gradient keeping your boat afloat. 16 Use the Venn diagram to compare exocytosis with endocytosis. Exocytosis Endocytosis, one of these, deals with, The movement The movement. They both deal, of bulk in the specialized of bulk. substances transport of large substances, outside the cell substances into the cell. amounts of, substances, Big idea Energy and the cell.
Answer the following questions as you read modules 5 10 5 12. 1 Complete the table that compares kinetic to potential energy. Kinetic energy Potential energy, Description The energy of motion Energy associated with a substance that can be. converted to kinetic energy, Example Solar energy A candy bar. Copyright 2015 Pearson Education Inc 35, DESIGN SERVICES OF. 152826 Cust Pearson Au Reece Pg No 35, REEC7833 08 C05 PRF indd 35. Short Normal, S4 CARLISLE 29 10 14 12 01 PM, Title Active Reading Guide for Campbell Biology Concepts Connections 8e Publishing Services.
Chapter 5 The Working Cell, 2 The food we eat has chemical energy Is it possible for a candy bar to have potential energy for. two different reasons at the same time Briefly explain your answer. Yes it is The candy bar has potential energy due to the bonds within the molecule but it could. also have potential energy if you placed it near the edge of a table. 3 Energy is never created or destroyed What happened to the energy that was stored in your gas. tank after your lawnmower comes to a stop as a result of running out of gas. a The energy was lost, b Entropy decreased in the universe. c It was converted to heat, d The lawnmower gained energy. 4 Match the following terms with their correct description exergonic reaction endergonic reac. tion metabolism metabolic pathway, metabolism, a The sum of all chemical reactions in an organism. metabolic pathway, b A series of reactions that either build or break down a molecule.
exergonic reaction, c A reaction that gives off energy. endergonic reaction, d A reaction that requires an input of energy. 5 A chemical reaction is determined to be endergonic If you were trying to get that reaction to. occur using a separate reaction what would you do, You would couple it to an exergonic reaction. The phosphorylation of ADP creates, 7 A cell pumps certain ions against their concentration gradient in order to maintain those. gradients What type of cellular work is this, This would be considered transport work.
8 Anything that inhibits ATP synthesis in a cell most likely. a forces the cell to use ADP as an energy source, b results in the death of the cell. c makes the cell start using lipids as energy, d causes the cell to stop doing mechanical work but not transport work. 36 Copyright 2015 Pearson Education Inc, DESIGN SERVICES OF. 152826 Cust Pearson Au Reece Pg No 36, REEC7833 08 C05 PRF indd 36 Guide for Campbell Biology Concepts Connections 8e. Short Normal, S4 CARLISLE 29 10 14 12 01 PM, Title Active Reading Publishing Services.
Chapter 5 The Working Cell, Big idea How enzymes function. Answer the following questions as you read modules 5 13 5 16. 1 The energy needed to initiate a chemical reaction is the. a activation energy, b substrate energy, c active site. d inhibition site, 2 In pole vaulting the higher the bar is placed the more difficult it is to clear it Explain why. this is a good analogy to help students understand enzymes and activation energy. In this analogy the bar represents the activation energy necessary for the reaction to occur. The higher the bar the harder it is to jump The more activation energy that is required the. harder it will be for the reaction to occur, 3 The graph on page 83 in your textbook illustrates the difference between a chemical reaction. with and without an enzyme Can the reaction represented by the black line still occur without. the enzyme Briefly explain your answer, Yes it would just take more energy to get the reaction started.
4 The relationship between an enzyme s active site and its substrate is most like which of the. a A comb and hair, b A car and a driver, c A scarf and a hand. d A key and a lock, 5 In the following reaction circle the enzyme. Lactose Glucose 1 Galactose, Copyright 2015 Pearson Education Inc 37. DESIGN SERVICES OF, 152826 Cust Pearson Au Reece Pg No 37. REEC7833 08 C05 PRF indd 37, Short Normal, S4 CARLISLE 29 10 14 12 01 PM.
Title Active Reading Guide for Campbell Biology Concepts Connections 8e Publishing Services. Chapter 5 The Working Cell, 6 Sucrase is the enzyme that breaks down sucrose into glucose and fructose Will sucrose also. catalyze the breakdown of the disaccharide maltose Briefly explain your answer. No because maltose will have a different structure than sucrose and so it will not fit into the. active site of sucrase, 7 Complete the Venn diagram comparing inhibitors. Noncompetitive Competitive, Inhibitors inhibitors, Bind to a location. on the enzyme, other than the Bind directly to, active site and They both the active site of. cause a change in work to an enzyme and, the enzyme s inhibit the inhibit the.
active site This activity binding of the, keeps the enzyme of enzymes proper. from binding to substrate, the proper, 8 Use Figure 5 15B on page 85 of your textbook to answer this question Assume that a toxin is. introduced to the cell that binds to and removes substance C from the pool of molecules par. ticipating in the reaction Briefly explain what would happen to the amount of substance B. The amount of substance B would increase because there would no longer be any feedback. inhibition, 9 Penicillin is a drug that affects bacterial cells and not human cells How is this possible. This is possible because the drug is targeting a structure not found in eukaryotic cells. Connecting the Big Ideas, Use your knowledge of the information contained within this chapter s Big Ideas to answer this. Aquaporins are membrane proteins that span the entire membrane An aquaporin protein must. be able to interact with polar regions that are both extracellular and intracellular as well as polar. water molecules moving through it s core Additionally it must be able to interact with the nonpolar. phospholipid tails How is it possible that this protein a collection of amino acids can meet all of. these requirements, 38 Copyright 2015 Pearson Education Inc.
DESIGN SERVICES OF, 152826 Cust Pearson Au Reece Pg No 38. REEC7833 08 C05 PRF indd 38 Guide for Campbell Biology Concepts Connections 8e. Short Normal, S4 CARLISLE 29 10 14 12 01 PM, Title Active Reading Publishing Services. Title Active Reading Guide for Campbell Biology Concepts amp Connections 8e C M Y K Short Normal S4 CARLISLEDESIGN SERVICES OF Publishing Services Chapter 5 The Working Cell Guided Reading Activities Big idea Membrane structure and function Answer the following questions as you read modules 5 1 5 9 1 Every cell has a n that allows it to maintain a cellular environment

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