Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Chapter 33.3, Problem 2CC
Summary Introduction
To write:
The main significance of saltatory conduction.
Introduction:
An action potential can be defined as a swift rise and succeeding fall in the membrane potential or the voltage through a cellular membrane with a distinctive pattern. In neurons, an action potential has a significant function in cell-to-cell communication.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What happens to synaptic transmission during an experiment if the preparation (containing 1 αmotor neuron and 1 skeletal muscle) is bathed in a low calcium solution?
What is action and resting potential and how does it work in conducting electrical impulses?
What are the ionic
basis of action
potential?
Chapter 33 Solutions
Principles of Biology
Ch. 33.1 - Which of the following is false? The CNS of...Ch. 33.1 - Prob. 2TYKCh. 33.1 - Prob. 1CCCh. 33.2 - Prob. 1CCCh. 33.2 - Prob. 1BCCh. 33.2 - Prob. 1TYKCh. 33.2 - The resting membrane potential occurs because the...Ch. 33.3 - Are ions the only substances that can move through...Ch. 33.3 - Prob. 1CCCh. 33.3 - Prob. 2CC
Ch. 33.3 - Which is false? Graded potentials may die out or...Ch. 33.3 - Action potentials require a threshold potential...Ch. 33.4 - Prob. 1CCCh. 33.4 - Prob. 1TYKCh. 33.4 - Prob. 2TYKCh. 33.5 - Prob. 1BCCh. 33.5 - Prob. 1TYKCh. 33.5 - Prob. 2TYKCh. 33.6 - Prob. 1CCCh. 33.6 - Prob. 2CCCh. 33.6 - Prob. 3CCCh. 33.6 - Prob. 1TYKCh. 33.6 - Prob. 2TYKCh. 33.7 - Prob. 1TYKCh. 33.7 - Therapeutic drugs that reduce symptoms of...Ch. 33 - Prob. 1TYCh. 33 - Prob. 2TYCh. 33 - Prob. 3TYCh. 33 - Neurons that function mainly in connecting other...Ch. 33 - Prob. 5TYCh. 33 - Prob. 6TYCh. 33 - Prob. 7TYCh. 33 - Prob. 8TYCh. 33 - Prob. 9TYCh. 33 - Prob. 10TYCh. 33 - Describe the differences between graded and action...Ch. 33 - Prob. 2CCQCh. 33 - Prob. 3CCQCh. 33 - Prob. 1CBQCh. 33 - Prob. 2CBQ
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
- Patch clamp recording of a single ion channel yields the following results: Holding Potential (mV) Measured Current (pA) -100 -1.0 -50 0.0 0 +1.0 +50 +2.0 +100 +3.0 Part a. What is the equilibrium potential for ion X+1? a.) 0 mv b.)+55 mv c.)-50 mv d.) -60 mv e.) -75 mv Part b. Is ion X+1 in higher concentration inside or outside the cell? a.) inside b.) outside Part c. Calculate the membrane potential at the instant when a neuron has the following relative permeabilities: PK+ = 1.0, PNa+ = 1.0, PCl- = 1.0. Use the ionic concentration values in the picture included. a.) -12 mv b.) -35mv c.) -60 mv d.) +20 mv e.) 0 mvarrow_forwardWhen performing respiratory impedance plethysmography, two coils of insulated wire are sewn into elastic cloth bands in a sinusoidal manner. Over what are(s) of the body are the sinusoidal bands placed?arrow_forwardWhich of the following is incorrectly matched with its function?arrow_forward
- Which of the following voltages would most likely be measured during the relative refractory period? +30 mV 0 mV -45 mV -80 mvarrow_forwardWhat are SASPs and what is their function?arrow_forwardYou are recording from a cell with a resting membrane potential of -65 mV. You inject 100 pA of current, resulting 58.7 mV. What is the value of tau? With this in mind, what is the capacitance of the cell? Please provide relevant equations to illustrate your thought process. When you terminate the current injection, how long do you expect for it to take for the cell to repolarize to -63 mV?arrow_forward
- Compound X has been shown to block voltage-gated K+ channels with an IC50 of 0.1 mM. Which of the following is the most likely to occur in neurones following application of 0.03 mM X? Action potentials would be prolonged and the resting potential would be depolarised. Action potentials would be prolonged but the resting potential would remain the same. Neither resting potential nor action potentials would be affected because the concentration of X is less than the IC50 value. The resting membrane potential would depolarise but there would be no effect on action potentials.arrow_forwardWhat is the relative importance of the Na+/K+ pump in action potential propagation?arrow_forwardWhat is the role of maximal potassium conductance in the generation and propagation of action potential?arrow_forward
- What structural and functional changes occur in the voltage gated sodium (NaV) channel when it inactivates?arrow_forwardHow many quanta of acetylcholine (ACh) are required to depolarize the motor end plate from −80 mV to −70 mV if a miniature end plate potential (MEPP) is 0.4 mV?arrow_forwardDraw the current that you would expect to flow during a voltage clamp experiment on a typical neuron. Voltages and time course are shown. Briefly explain why the currents are inward or outward. Be sure to provide scale bars. You should definitely label the Y axis so that the peak current value is obvious. Draw the Na+ current you would expect if there were physiological ionic gradients. Draw the K+ current you would expect if there are physiological ionic gradients. Draw the K+ current you would expect if the bath solution and the intracellular solution are both 125 mM.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage LearningAnatomy & 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
Principles Of Radiographic Imaging: An Art And A ...
Health & Nutrition
ISBN:9781337711067
Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac
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
Infectious Diseases - How do we control them?; Author: Let's Learn Public Health;https://www.youtube.com/watch?v=2JWku3Kjpq0;License: Standard Youtube License