HUMAN ANATOMY
6th Edition
ISBN: 9781260986037
Author: SALADIN
Publisher: MCG
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Chapter 2.2, Problem 5BYGO
Summary Introduction
To analyze:
The substance that can enter the cell membrane by direct transport and channel proteins.
Introduction:
The proteins are made of amino acids. The amino acids are of 20 types that combine in a varied manner to form proteins. The amino acids join together by peptide bonds. Proteins act as major substrates and reactants for the
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What is the correct order of permeability for the following four substances across a pure phosopholipid bilayer?
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The uneven distribution of ions across the plasma membrane is regulated, in part, by transport proteins. The result is a net negative charge on the inside of the plasma membrane and a net positive charge on the outside of the plasma membrane. How doyou explain the net negative charge inside the plasma membrane when the predominant intracellular ion is K+?
Which of the following is ther eason why the potassium leaves the cell readily at the peak of the action potential?A) The sodium-potassium pumps work hard to return potassium to the extracellular fluid.
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D) Both diffusion and electrostatic pressure will cause potassium to exit the cell.
Chapter 2 Solutions
HUMAN ANATOMY
Ch. 2.1 - Prob. 1AWYKCh. 2.1 - Prob. 1BYGOCh. 2.1 - Prob. 2BYGOCh. 2.1 - Prob. 3BYGOCh. 2.1 - Answer the following questions to test your...Ch. 2.2 - Prob. 1AWYKCh. 2.2 - Prob. 2AWYKCh. 2.2 - Prob. 5BYGOCh. 2.2 - Compare the structure and function of...Ch. 2.2 - What membrane transport processes get all the...
Ch. 2.2 - Identify several reasons why the glycocalyx is...Ch. 2.2 - Prob. 9BYGOCh. 2.2 - Prob. 10BYGOCh. 2.3 - Not all genetic diseases are hereditary. Explain...Ch. 2.3 - Prob. 11BYGOCh. 2.3 - Prob. 12BYGOCh. 2.3 - Prob. 13BYGOCh. 2.3 - What three organelles are involved in protein...Ch. 2.3 - Prob. 15BYGOCh. 2.4 - State what occurs in each of the four phases of...Ch. 2.4 - Prob. 17BYGOCh. 2.4 - Prob. 18BYGOCh. 2.4 - Prob. 19BYGOCh. 2.4 - Discuss the advantages and disadvantages of adult...Ch. 2 - Prob. 2.1.1AYLOCh. 2 - How the light microscope transmission electron...Ch. 2 - Prob. 2.1.3AYLOCh. 2 - The distinction between the basal, apical, and...Ch. 2 - The size of a micrometer and some common and...Ch. 2 - Prob. 2.1.6AYLOCh. 2 - The meanings of plasma membrane, cytoplasm,...Ch. 2 - Prob. 2.1.8AYLOCh. 2 - Prob. 2.2.1AYLOCh. 2 - Prob. 2.2.2AYLOCh. 2 - Prob. 2.2.3AYLOCh. 2 - Prob. 2.2.4AYLOCh. 2 - The diverse physiological roles of membrane...Ch. 2 - Prob. 2.2.6AYLOCh. 2 - Prob. 2.2.7AYLOCh. 2 - Prob. 2.2.8AYLOCh. 2 - Prob. 2.2.9AYLOCh. 2 - Prob. 2.2.10AYLOCh. 2 - Prob. 2.2.11AYLOCh. 2 - The three components of the cytoskeleton, and how...Ch. 2 - Structure and function of a cell’s nucleus rough...Ch. 2 - Prob. 2.3.3AYLOCh. 2 - The four stages of the cell cycle and what events...Ch. 2 - The four stages of mitosis, what events occur in...Ch. 2 - Prob. 2.4.3AYLOCh. 2 - Prob. 2.4.4AYLOCh. 2 - The meaning of stem cells; their usefulness in...Ch. 2 - Prob. 1TYRCh. 2 - New nuclei form and a cell pinches in two during...Ch. 2 - Prob. 3TYRCh. 2 - Prob. 4TYRCh. 2 - Prob. 5TYRCh. 2 - Prob. 6TYRCh. 2 - Prob. 7TYRCh. 2 - Prob. 8TYRCh. 2 - Prob. 9TYRCh. 2 - Matter can leave a cell by any of the following...Ch. 2 - Prob. 11TYRCh. 2 - Prob. 12TYRCh. 2 - Prob. 13TYRCh. 2 - Prob. 14TYRCh. 2 - Prob. 15TYRCh. 2 - Prob. 16TYRCh. 2 - Prob. 17TYRCh. 2 - Prob. 18TYRCh. 2 - Prob. 19TYRCh. 2 - Prob. 20TYRCh. 2 - Prob. 1WWWTSCh. 2 - Prob. 2WWWTSCh. 2 - Prob. 3WWWTSCh. 2 - Prob. 4WWWTSCh. 2 - Briefly explain why each of the following...Ch. 2 - Prob. 6WWWTSCh. 2 - Prob. 7WWWTSCh. 2 - Prob. 8WWWTSCh. 2 - Prob. 9WWWTSCh. 2 - Briefly explain why each of the following...Ch. 2 - Prob. 1BYMVCh. 2 - Prob. 2BYMVCh. 2 - Prob. 3BYMVCh. 2 - Prob. 4BYMVCh. 2 - Prob. 5BYMVCh. 2 - Prob. 6BYMVCh. 2 - Prob. 7BYMVCh. 2 - Prob. 8BYMVCh. 2 - Prob. 9BYMVCh. 2 - State a meaning of each word element and give a...Ch. 2 - What would probably happen to the plasma membrane...Ch. 2 - Prob. 2TYCCh. 2 - Prob. 3TYCCh. 2 - Prob. 4TYCCh. 2 - Prob. 5TYC
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- Why are ion channels necessary to transport ions into or out of a cell?arrow_forwardAssume that a membrane permeable to Na+ but not to Cl- separates two solutions. The concentration of sodium chloride on side 1 is higher than on side 2. Which of the following ionic movements would occur? a. Na+ would move until its concentration gradient is dissipated (until the concentration of Na+ on side 2 is the same as the concentration of Na+ on side 1). b. Cl- would move down its concentration gradient from side 1 to side 2. c. A membrane potential, negative on side 1, would develop. d. A membrane potential, positive on side 1, would develop. e. None of the preceding is correct.arrow_forwardThere are several membrane-bound organelles in cells (e.g. nuclei, mitochondria, endoplasmic reticulum) that can also have ion channels in their membranes. Sketch an electrical circuit model of a cell that expresses sodium, calcium, and chloride ion channels in its cellular membrane and calcium and chloride ion channels in its nuclear envelope membrane.arrow_forward
- Some antibiotics act as carriers that bind an ion on one side of a membrane, diffuse through the membrane, and release the ion on the other side. The graph shows the conductance of a lipid-bilayer membrane with a carrier antibiotic as a function of temperature. Conductance 40 39 38 Temperature (°C) 37 36 What can you conclude about the effect of a carrier antibiotic on the conductance of the lipid-bilayer membrane? A carrier antibiotic decreases the conductance of a lipid bilayer, regardless of temperature. A carrier antibiotic can shuttle ions across a membrane only when the lipid bilayer is quite rigid. A carrier antibiotic increases the conductance of a lipid bilayer, regardless of temperature. O A carrier antibiotic can shuttle ions across a membrane only when the lipid bilayer is highly fluid.arrow_forwardWhat is the correct order of permeability for the following four substances across a pure phosopholipid bilayer? Ca+ > ATP > O2 > ethanol K+ > ethanol > CO2 > ATP CO2 > ethanol > K+ > GTP O2 > Ca+ > GTP > ethanolarrow_forwardHow do neutral solutes move across the plasma membrane? Can the polarmolecules also move across it in the same way? If not, then how are thesetransported across the membrane?arrow_forward
- The cytoplasm of a certain cell is composed of a solution that is 98% water, 2% solutes. Consider the solution shown in the beaker in this picture: FOOE OOS Foor solution. [Select] Cytoplasm is 98% water, 2% solutes. The solution in the beaker would be considered when compared to [Select] The plasma membrane is impermeable to solutes. Beaker solution is 98% water, 2% solutes the cell. We would expect that the cell would [Select] if it was placed in the would account for whatever changes might occur to the volume of the cytoplasm of the cell when it is placed in the solution.arrow_forwardHow are transmembrane potentials maintained in a leaky membrane?arrow_forwardThis graph shows the electrical charges of the cytosol at one spot along an axon or muscle cell. a) Even though the charges are the same at steps 3 and 6, explain the situation with the ions on either side of the membrane. I am not looking for a vocabulary term here, just a simple explanation in normal words. b) At step 6, this spot in the cell is not ready to conduct another action potential/impulse. What has to happen to get it ready again- and how is this done?arrow_forward
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