Pearson eText Fundamentals of Anatomy & Physiology -- Instant Access (Pearson+)
11th Edition
ISBN: 9780136874089
Author: Frederic Martini, Judi Nath
Publisher: PEARSON+
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Textbook Question
Chapter 3, Problem 27CP
What is the membrane potential of a cell, and in what units is it expressed?
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Chapter 3 Solutions
Pearson eText Fundamentals of Anatomy & Physiology -- Instant Access (Pearson+)
Ch. 3 - List the general functions of the plasma membrane.Ch. 3 - Identify the components of the plasma membrane...Ch. 3 - Which component of the plasma membrane is...Ch. 3 - Which type of integral protein allows water, ions,...Ch. 3 - Prob. 5CPCh. 3 - What are the major differences between cytosol and...Ch. 3 - Prob. 7CPCh. 3 - Prob. 8CPCh. 3 - Explain why certain cells in the ovaries and...Ch. 3 - What does the presence of many mitochondria imply...
Ch. 3 - Describe the contents and structure of the...Ch. 3 - What is a gene?Ch. 3 - Define gene activation.Ch. 3 - Describe transcription and translation.Ch. 3 - What process would be affected by the lack of the...Ch. 3 - What is meant by the term selectively permeable...Ch. 3 - Define diffusion.Ch. 3 - List five factors that influence the diffusion of...Ch. 3 - How would a decrease in the concentration of...Ch. 3 - Define osmosis.Ch. 3 - Some pediatricians recommend using a 10 percent...Ch. 3 - Describe the process of carrier-mediated...Ch. 3 - The concentration of hydrogen ions (H+) in the...Ch. 3 - Describe endocytosis.Ch. 3 - Describe exocytosis.Ch. 3 - What is the process called whereby certain types...Ch. 3 - What is the membrane potential of a cell, and in...Ch. 3 - If the plasma membrane of a cell were freely...Ch. 3 - Give the biological terms for (a) cellular...Ch. 3 - What enzymes must be present for DNA replication...Ch. 3 - Describe interphase, and identify its stages.Ch. 3 - A cell is actively manufacturing enough organelles...Ch. 3 - Define mitosis, and list its four stages.Ch. 3 - What would happen if spindle fibers failed to form...Ch. 3 - Define growth factor, and identify several growth...Ch. 3 - An illness characterized by mutations that disrupt...Ch. 3 - Define metastasis.Ch. 3 - Define cellular differentiation.Ch. 3 - Prob. 1RQCh. 3 - The process that transports solid objects such as...Ch. 3 - Plasma membranes are said to be (a) impermeable,...Ch. 3 - _____ ion concentration is high in extracellular...Ch. 3 - At resting membrane potential, the cytoplasmic...Ch. 3 - The organelle responsible for a variety of...Ch. 3 - The synthesis of a functional polypeptide using...Ch. 3 - Prob. 8RQCh. 3 - The movement of water across a membrane from an...Ch. 3 - Prob. 10RQCh. 3 - List the four basic concepts that make up the cell...Ch. 3 - What are four general functions of the plasma...Ch. 3 - What are the primary functions of membrane...Ch. 3 - By what three major transport mechanisms do...Ch. 3 - List five important factors that influence...Ch. 3 - What are the four major functions of the...Ch. 3 - Diffusion is important in body fluids, because it...Ch. 3 - Microvilli are found (a) mostly in muscle cells,...Ch. 3 - When a cell is placed in a(n) _____ solution, the...Ch. 3 - Suppose that a DNA segment has the following...Ch. 3 - Prob. 21RQCh. 3 - The sodium-potassium exchange pump (a) is an...Ch. 3 - If a cell lacked ribosomes, it would not be able...Ch. 3 - List, in sequence, the phases of the interphase...Ch. 3 - List the stages of mitosis, and briefly describe...Ch. 3 - (a) What is cytokinesis? (b) What is the role of...Ch. 3 - The transport of a certain molecule exhibits the...Ch. 3 - Solutions A and B are separated by a selectively...Ch. 3 - A molecule that blocks the ion channels lining...Ch. 3 - What is the benefit of having some of the cellular...Ch. 3 - List the general functions of the plasma membrane.Ch. 3 - Identify the components of the plasma membrane...
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- How are transmembrane potentials maintained in a leaky membrane?arrow_forward[6.1] [6.2] If you could add channels to the membrane that make it permeable to peptides and water, what do you think would happen to the peptide and water molecules in the cell? If, after adding those channels, you were to wait long enough for the system to equilibrate (i.e., reach a stable state in which the number and type of molecule in each compartment no longer changes much over time), about how many peptide molecules would you expect to find on the left side of the cell and how many on the right? How about the water molecules? Explain your reasoning.arrow_forwardIs tricellular junction important in cell junction specification? https://en.wikipedia.org/wiki/Cell_junction#:~:text=Cell%20junctions%20(or%20intercellular%20bridges,the%20extracellular%20matrix%20in%20animals.arrow_forward
- How long is a typical transmembrane domain, and what is the chemical composition of the amino acids found within the transmembrane domain of a single-spanning integral membrane protein? A~ 20 amino acids; hydrophobic amino acidsB~ 100 amino acids, amphipathic amino acidsC~ 10 amino acids; polar, charged amino acids D~ 50 amino acids, polar, uncharged amino acidsarrow_forwardIs the inside of the plasma membrane negative or positive relative to its outside in a polarized membrane of a resting cell?arrow_forwardWhat are the four classifications of membrane proteins? How is each positioned with respect to the bilayer?arrow_forward
- What would happen in each of the following cases where something related to intracellular transport is altered? Assume in each case that the protein involved is a soluble protein, not a membrane protein. State where each protein would be located and explain each of your answers. You change the hydrophobic amino acids in an ER signal sequence into negatively charged amino acids. You discover a protein that has both an ER signal sequence and a nuclear localization sequence. The ER signal sequence is at the N-terminus of the protein, and the nuclear localization sequence is located in the middle of the protein.arrow_forwardWhat causes an alteration in cell resting membrane potential? What signs and symptoms would you expect to identify when your patient has an altered RMP?arrow_forwardWhat would happen in each of the following cases where something related to intracellular transport is altered? Assume in each case that the protein involved is a soluble protein, not a membrane protein. State where each protein would be located and explain each of your answers. You add a signal sequence (for the Golgi) to the N-terminal end of a normally cytosolic protein. You change the hydrophobic amino acids in an ER signal sequence into other, hydrophobic, amino acids.arrow_forward
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