EBK HUMAN PHYSIOLOGY
8th Edition
ISBN: 9780134704227
Author: Silverthorn
Publisher: YUZU
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Textbook Question
Chapter 5.4, Problem 21CC
If a channel is lined with amino acids that have a net positive charge, which of the following ions is/are likely to move freely through the channel? Na+, Cl−, K+, Ca2+
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Chapter 5 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 5.1 - If the 58-kg Reference Woman has total body water...Ch. 5.1 - A mother brings her baby to the emergency room...Ch. 5.1 - Prob. 6CCCh. 5.1 - Two compartments are separated by a membrane that...Ch. 5.1 - Prob. 8CCCh. 5.1 - Prob. 9CCCh. 5.1 - Prob. 10CCCh. 5.3 - If the distance over which a molecule must diffuse...Ch. 5.3 - Prob. 12CCCh. 5.3 - Which is more likely to cross a cell membrane by...
Ch. 5.3 - Prob. 14CCCh. 5.3 - Prob. 15CCCh. 5.3 - Prob. 16CCCh. 5.4 - Positively charged ions are called _____, and...Ch. 5.4 - Name four functions of membrane proteins.Ch. 5.4 - Prob. 19CCCh. 5.4 - Prob. 20CCCh. 5.4 - If a channel is lined with amino acids that have a...Ch. 5.4 - Prob. 22CCCh. 5.4 - Liver cells (hepatocytes) are able to convert...Ch. 5.4 - Prob. 24CCCh. 5.5 - What would you call a carrier that moves two...Ch. 5.5 - Prob. 26CCCh. 5.5 - Prob. 27CCCh. 5.5 - Name the two membrane protein families associated...Ch. 5.5 - Prob. 29CCCh. 5.6 - Prob. 30CCCh. 5.6 - Prob. 31CCCh. 5.6 - Prob. 32CCCh. 5.6 - Prob. 33CCCh. 5.7 - Prob. 34CCCh. 5 - Using what you learned about the naming...Ch. 5 - Prob. 2CCCh. 5 - Prob. 3CCCh. 5 - Prob. 1RQCh. 5 - Distinguish between active transport and passive...Ch. 5 - Which of the following processes are examples of...Ch. 5 - List four factors that increase the rate of...Ch. 5 - List the three physical methods by which materials...Ch. 5 - A cotransporter is a protein that moves more than...Ch. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - What determines the osmolarity of a solution? In...Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - The membrane potential at which the electrical...Ch. 5 - Prob. 16RQCh. 5 - Create a map of transport across cell membranes...Ch. 5 - Draw a large rectangle to represent the total body...Ch. 5 - What factors influence the rate of diffusion...Ch. 5 - Define the following terms and explain how they...Ch. 5 - Prob. 21RQCh. 5 - Prob. 22RQCh. 5 - Prob. 23RQCh. 5 - Prob. 24RQCh. 5 - Prob. 25RQCh. 5 - Prob. 26RQCh. 5 - The following terms have been applied to membrane...Ch. 5 - Prob. 28RQCh. 5 - NaCl is a nonpenetrating solute and urea is a...Ch. 5 - Prob. 30RQCh. 5 - Prob. 31RQCh. 5 - What is the osmolarity of half-normal saline (=...Ch. 5 - Prob. 33RQCh. 5 - Prob. 34RQ
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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
- Ions like K+ cannot diffuse directly across the membrane. They need open ion channels to cross the membrane. Explain why.arrow_forwardWhich of the following molecules can bind to and open at least one type of Kir channel? ATP PIP2 EDTA All of the abovearrow_forwardWhich of the following statements about ion channels is INCORRECT? Like carrier proteins, most channel proteins are specific regarding which molecules are allowed to pass. Channel proteins can have open or closed configurations. Unlike carrier proteins, some channel proteins are engaged in active transport of solutes. Channel proteins are used extensively in nerve cells, in which they are responsible for transduction of electrical signals. Compared to carrier proteins, channel proteins allow much faster transport.arrow_forward
- *** fluorescence in bleached area- BLEACH WITH LASER BEAM bleach Protein 1 bleached area RECOVERY Figure 10-13 Molecular Biology of the Cell 6 (Garland Science 2015) Protein 2 *** ** *** time The diffusion/exchange rate of a protein can be measured by photobleaching techniques such as FRAP. When there is protein exchange (i.e. if the protein is mobile), fluorescence recovery in the bleached region occurs, as shown in the figure above. The graphs below show the fluorescence measurement of an area in the cell before and after bleaching for protein 1 and protein 2. Which protein has lower mobility? Protein 1 Protein 2 fluorescence in bleached area->> fluorescence in bleached area bleach BLEACH time RECOVERY timearrow_forwarddifference between channels and transporters is that O Only channels allow for the passage of solutes against their electrochemical gradient. OTransporters allow for a greater rate of transport across a membrane than channels do. O Only channels allow for the transport of ions. Transporters must undergo a conformational change upon binding to the solute.arrow_forwardWhich of the following statements is CORRECT in describing the nature of water channels? Group of answer choices It is a channel for the transport of any liquid medium. It is a non-gated channel. It is a channel that can facilitate the transport of sodium ions. It is a channel for active transport.arrow_forward
- "Transporters saturate at high concentrations of the transported molecule when all their binding sites are occupied; channels, on the other hand, do not bind the ions they transport and thus the flux of ions through a channel does not saturate." is true or false.arrow_forwardThe tight binding sites required for ion selectivity should slow the progress of ions through a channel, yet ion channels achieve rapid rates of ion transport. How is this paradox resolved?arrow_forwardThe electrochemical gradient across membranes is important in determining movement across membranes for a certain type(s) of solute. Which kind? Both anions and cations Positively charged (cations) Neutral/uncharged solutes Negatively charged (anions)arrow_forward
- List two ways that channels differ from transporters? What type of molecules do channels usually transport?arrow_forwardIn the Nernst equation [V = 62 log10 (Co/ Ci)], the term Co represents: the intracellular concentration of potassium the intracellular concentration of chloride the membrane potential (in millivolts) the extracellular concentration of sodium the extracellular concentration of potassiumarrow_forwardDescribe the contribution of each of the following to establishing and maintaining membrane potential: (a) the Na+K+ pump, (b) passive movement of K+ across the membrane, (c) passive movement of Na+ across the membrane, and (d) the large intracellular anions.arrow_forward
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