Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 43, Problem 15PIAT
Summary Introduction
To review:
The effects of removing extracellular sodium, increasing the intracellular potassium concentration, and adding tetrodotoxin from puffer fish on the membrane potential of a neuron simultaneously poisoned with BTX (batrachotoxin).
Introduction:
The membrane potential is the electric potential difference between the interior and the surrounding fluid of the cell. The change in this membrane potential helps in the transmission of information from one cell to the other.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
explain in detail ephrin receptor EPHB2 receptor interaction with PDZ ligand.
give full step by step explanantion.
Both rhodopsin in vision and the muscarinic acetylcholine receptor in cardiac muscle are coupled to ion channels via G proteins. Describe the similarities and differences between these two systems.
Clostridium tetani toxin blocks the exocytosis of GABA.
A. What anatomical part of a pre-synaptic neuron would be affected by this?
B. How would a post-synaptic neuron’s likelihood of experiencing an action potential be affected by this toxin?
C. Explain, using at least TWO of the following terms: threshold, depolarization, repolarization, hyperpolarization, summation, IPSP, EPSP, exocytosis
Chapter 43 Solutions
Biological Science (6th Edition)
Ch. 43 - Prob. 1TYKCh. 43 - Prob. 2TYKCh. 43 - In a neuron, what creates the electrochemical...Ch. 43 - Prob. 4TYKCh. 43 - Explain the difference between a ligand-gated K+...Ch. 43 - Prob. 6TYUCh. 43 - Prob. 7TYUCh. 43 - Prob. 8TYUCh. 43 - Prob. 9TYPSSCh. 43 - Alzheimer’s disease is a common form of dementia...
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
- • Why would one use the Goldman-Hodgkin-Katz equation? • What is the role of the Na+/K+ pump in establishing ionic concentration differences and membrane potentials across the nerve membrane? • Describe the process of depolarization of the nerve membrane.arrow_forwardBriefly explain the difference between a receptor antagonist and a receptor inverse agonist. Describe both the resulting receptor conformation as well as the signal transduction.arrow_forwardDescribe the distribution of voltage gated ion channels in the nodes of Ranvier-vs-trigger zone/axonarrow_forward
- Name a drug for treatment for overactive bladder syndrome which does not target the muscarinic M3 receptors directly, but rather targets one of the second messenger signalling molecules within the smooth muscle cells as a result of muscarinic M3 receptor activation. Which second messenger molecule would you choose to target? Justify your choice and explain how targeting this second messenger pathway would result in the reduction of bladder smooth muscle contraction.arrow_forwardAMPK and mTOR can both be considered intracellular signal integrators. Explain this definition.arrow_forwardDesign a novel drug for treatment for overactive bladder syndrome which does not target the muscarinic M3 receptors directly, but rather targets one of the second messenger signalling molecules within the smooth muscle cells as a result of muscarinic M3 receptor activation. Which second messenger molecule would you choose to target? Justify your choice and explain how targeting this second messenger pathway would result in the reduction of bladder smooth muscle contraction.arrow_forward
- Batrachotoxin (BTX) is a steroidal alkaloid from the skin of Phyllobates terribilis , a poisonous Colombian frog (the source of the poison used on blowgun darts). In the presence of BTX, Na+ channels in an excised patch stay persistently open when the membrane is depolarized. They close when the membrane is repolarized . Which transition is blocked by BTX?arrow_forwardIf neurons fire action potentials when membrane potential reaches -50mV, how would hyperkalemia affect neuronal excitability (likelihood of the neuron firing action potentials)?arrow_forwardSecond-messenger systems ultimately bring about the desired cell response by inducing a change in the shape and function of particular designated intracellular proteins. (True or false?)arrow_forward
- If a postsynaptic cell has synapses from five different cells, and three cause EPSPs and two of them cause IPSPs, give an example of a series of depolarizations and hyperpolarizations that would result in the neuron reaching threshold.arrow_forwardOutline the three general means by which binding of a water soluble extracellular chemical messenger to its matching surface membrane receptor brings about the desired intracellular response.arrow_forwardAstrocytes use _______ ______ to convert glutamate and NH4 into _______ for neuron re-uptake. mitochondria, ATP glutamine synthase, glutamine action potentials, voltage glycine, glucosearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:OpenStax College
Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license