EBK CAMPBELL BIOLOGY
10th Edition
ISBN: 9780136539414
Author: Reece
Publisher: VST
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7.2, Problem 3CC
MAKE CONNECTIONS Ø Aquaporins exclude passage of hydronium ions (H3O+), but some aquaporins allow passage of glycerol, a three-carbon alcohol (see Figure 5.9), as well as H2O. Since H3O+ is closer in size to water than glycerol is, yet cannot pass through, what might be the basis of this selectivity?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
yeasts are able to produce high internal concentrations of glycerol to counteract the osmotic pressure of the surrounding media. suppose that a sample of yeast cells were placed in a 4% sodium chloride solution by weight.
The density of solution is at 25 C = 1.02 g/ml, Molecular weight of solute = 58.44 g/mol, i of glycerol = 1 and R=0.08205 L-atm/mol-K
What is the weight of solute in grams
What is the moles of solute
What is the volume of the solution in liters
What is the molarity of the solution
What is the value of the temperature to be used to solved for the osmotic pressure of the solution
What is the osmotic pressure of solution
Consider a negatively charged protein adsorbed on anion-exchange gel at pH 8. (a) How will a gradient from pH 8 to some lower pH be useful for eluting the protein? (b) How would a gradient of increasing NaCl concentration (at constant pH) be useful for eluting the protein?
An H+ ion is smaller than an H2O molecule, and a glycerol molecule, a three-carbon alcohol, is much larger. Both readily dissolve in H2O. Why do aquaporins fail to transport H+ whereas some can transport glycerol?
Chapter 7 Solutions
EBK CAMPBELL BIOLOGY
Ch. 7.1 - VISUAL SKILLS Carbohydrates are attached to...Ch. 7.1 - WHAT IF? How would the membrane lipid composition...Ch. 7.2 - What property allows O2 and CO2 to cross a lipid...Ch. 7.2 - VISUAL SKILLS Examine Figure 7.2. Why is a...Ch. 7.2 - MAKE CONNECTIONS Aquaporins exclude passage of...Ch. 7.3 - How do you think a cell performing cellular...Ch. 7.3 - WHAT IF? If a Paramecium swims from a hypotonic...Ch. 7.4 - Sodium-potassium pumps help nerve cells establish...Ch. 7.4 - VISUAL SKILLS Compare the sodium-potassium pump...Ch. 7.4 - MAKE CONNECTIONS Review the characteristics of...
Ch. 7.5 - As a cell grows, its plasma membrane expands. Does...Ch. 7.5 - DRAW IT Return to Figure 7.9, and circle a patch...Ch. 7.5 - Prob. 3CCCh. 7 - In what ways are membranes crucial to life?Ch. 7 - How do aquaporins affect the permeability of a...Ch. 7 - What happens to a cell placed in a hypertonic...Ch. 7 - ATP is not directly involved in the functioning of...Ch. 7 - Which type of endocytosis involves the binding of...Ch. 7 - In what way do the membranes of a eukaryotic Cell...Ch. 7 - According to the fluid mosaic model of membrane...Ch. 7 - Which of the following factors would tend to...Ch. 7 - Which of the following processes includes all the...Ch. 7 - Prob. 5TYUCh. 7 - DRAW IT An artificial "cell" consisting of an...Ch. 7 - EVOLUTION CONNECTION Paramecium and other...Ch. 7 - Prob. 8TYUCh. 7 - SCIENCE, TECHNOLOGY, AND SOCIETY Extensive...Ch. 7 - WRITE ABOUT A THEME: INTERACTIONS A human...Ch. 7 - SYNTHESIZE YOUR KNOWLEDGE In the supermarket,...
Additional Science Textbook Solutions
Find more solutions based on key concepts
What is the difference between histology and radiography?
Human Anatomy (8th Edition)
Problem Set
True or False? Indicate whether each of the following statements about membrane transport is true (...
Becker's World of the Cell (9th Edition)
Define histology.
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
Which of the following would be used to identify an unknown bacterial culture that came from a patient in the i...
Microbiology Fundamentals: A Clinical Approach
Define histology.
Fundamentals of Anatomy & Physiology (11th Edition)
11. In the early 1800s, French naturalist Jean Baptiste Lamarck suggested that the best explanation for the rel...
Campbell Biology: Concepts & Connections (8th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- water potential a) At 20°C, a cell containing 0.6M glucose is in equilibrium with its surrounding solution containing 0.5M glucose in an open container. What is the cell’s ΨP? b) At 20°C, a cell with ΨP of 3 bars is in equilibrium with the surrounding 0.4M solution of sucrose in an open beaker. What is the molar concentration of sucrose in the cell?arrow_forwardIn the experimental conditions described below, how many molecules of dextrose do you have to add to the extracellular fluid in order to make it iso-osmotic relative to the intracellular fluid? Intracellular fluid: • Number of water molecules = 60 • Number of Dextrose molecules = 6 • Number of Sucrose molecules = 3 Extracellular fluid: Number of water molecules = 120 • Number of dextrose molecule = ???? • Number of Sucrose molecules = 0 %3D Enter the number of molecules of dextrose in your answer (format: for 7 enter 7 or 7.00, for 7.5 enter 7.5 or 7.50, for 7.3333 enter 7.33 etc...). Your Answer:arrow_forwardIn the experimental conditions described below, how many molecules of dextrose do you have to add to the extracellular fluid in order to make it iso-osmotic relative to the intracellular fluid? Intracellular fluid: Number of water molecules = 60 • Number of Dextrose molecules = 7 • Number of Sucrose molecules = 3 ● Extracellular fluid: • Number of water molecules = 160 • Number of dextrose molecule = ???? • Number of Sucrose molecules = 0arrow_forward
- Diffusion with barrier temperature 1. 000 Low Watch on YouTube W 8 O **, Temperature MATUM ... Remove barrier 00 High 208 Start O Trace a molecule A periment time Gas sensor Reset experiment Stop Share 0.0 s Thermometer About Share In the scenario shown above, the green spheres are Glucose molecules and the blue dots are water molecules. What effect will the addition of energy in the form of heat change how these molecules move across a membrane? Raarrow_forwardIn the experimental conditions described below, how many molecules of dextrose do you have to add to the extracellular fluid in order to make it iso-osmotic relative to the intracellular fluid? Intracellular fluid: • Number of water molecules = 60 • Number of Dextrose molecules = 8 • Number of Sucrose molecules = 4 Extracellular fluid: • Number of water molecules = 160 • Number of dextrose molecule = ???? • Number of Sucrose molecules = 0 Enter the number of molecules of dextrose in your answer (format: for 7 enter 7 or 7.00, for 7.5 enter 7.5 or 7.50, for 7.3333 enter 7.33 etc.). Your Answer:arrow_forwardIn the experimental conditions described below, how many molecules of dextrose do you have to add to the extracellular fluid in order to make it iso-osmotic relative to the intracellular fluid? Pracice 7 Intracellular fluid: • Number of water molecules = 60 Number of Dextrose molecules = 8 • Number of Sucrose molecules = 2 Extracellular fluid: • Number of water molecules = 160 • Number of dextrose molecule = ???? • Number of Sucrose molecules = 0 Enter the number of molecules of dextrose in your answer (format: for 7 enter 7 or 7.00, for 7.5 enter 7.5 or 7.50, for 7.3333 enter 7.33 etc...). Your Answer: Answerarrow_forward
- Uncharged molecules can passively pass through membranes more readily than charged molecules. Acetylsalicylic acid, better known as aspirin, has a single carboxylate group with a pKa of 3.5. Approximately what percentage of the molecule is charged in the stomach, and approximately what percentage is charged at normal blood pH at the surface of a blood vessel? Finally, per unit surface area, where would the rate of passive transfer across a membrane be highest? A.) 1%, >99%, stomach B.) >99%, 1%, stomach C.) 1%, >99%, blood vessel D.) 50%, 50%, blood vessel E.)>99%, 1%, blood vessel F.) 50%, 50%, stomacharrow_forwardPart A Bacteria have a membrane potential, although the mechanisms of how it is maintained diffor from those of mammalian cells. The transport of protons across the cell membrane is an important part of the machanism, so a bacterium's membrane potential varies with the proton concentration-the pH-of the surrounding fluid. One strain of bacteria was found to have a membrane potential of -120 mV at a pH of 7.5. A bacterium can be modeled as a 1.5-um-diameter sphere. How many positive ions are needed on the exxterior surtace to establish this membrane potential? (There are an equal number of negative ions on the interior surface.) Assume that the mombrane propertios are the same an those of mammalian cells, lons Submit Request Answerarrow_forwardIn the experimental conditions described below, how many molecules of dextrose do you have to add to the extracellular fluid in order to make it iso-osmotic relative to the intracellular fluid? Praclice 7 Intracellular fluid: • Number of water molecules = 60 Number of Dextrose molecules = 8 • Number of Sucrose molecules = 2 Extracellular fluid: • Number of water molecules = 160 • Number of dextrose molecule = ???? • Number of Sucrose molecules = 0 Enter the number of molecules of dextrose in your answer (format: for 7 enter 7 or 7.00, for 7.5 enter 7.5 or 7.50, for 7.3333 enter 7.33 etc...). Your Answer: Answerarrow_forward
- ATP + H20 → ADP + Pi AG = -30.5kJ/mol 3Na* (inside) + 2K* (outside) + ATP* + H20 → 3Na* (outside) + 2K* (inside) + ADP3 + Pi2 + H* Calculate the minimum pH difference across a membrane that could, theoretically at least, support he fromation of 1.0 mM ATP from Pi and 1.0 mM ADP at pH 7 at 25 degrees.arrow_forward6-One method to determine proximity of two locations in a protein molecule or protein complex is FRET. This technique uses fluorescence transfer between two fluorophores where the ability of the transfer to occur is correlated to distance between the two residues. A) On the following graph using colored pencils, pens, or markers draw the emission spectra from the donor and the absorbance spectra of the acceptor (this should be a general schematic, does not need to be a FRET pair). Include a key for your graph B) As a rescarch student in my group you want to study the proximity of two residues in clamp region of a protein. Draw a schematic of your protein and label the two locations of your fluorophores. In 2-4 sentences (or figures) explain how your FRET fluorophores would give determine if these two residues were close to one another.arrow_forwardHow does NH4SO4 affect water structure? What does this have to do with protein solubility? I thought the answer was that NH4S04 attracts H2O so the protein doesn't bind to H2O allowing the protein to bind to each other. But the answer given is, orders water locally to become more ice-like. Can someone explain?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license