ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303106
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
expand_more
expand_more
format_list_bulleted
Question
Chapter 11, Problem 10RAC
Summary Introduction
Introduction:
The concentration of ions in the cytoplasm is different in comparison to the extracellular fluid around the cell. The excitable cells use this concentration difference in performing functions.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Classify each phrase as describing ligand-gated ion channels, voltage-gated ion channels, or both.
Ligand-gated ion channels
a form of passive transport
Voltage-gated ion channels
include the acetylcholine receptor
change conformation in response to changing membrane potential
Answer Bank
may participate in an action potential
Both
change conformation in response to a signal molecule binding
What is the major determinant of the permeability of a membrane to a specific ion?
Concentration of the ion outside the cell
O Concentration of the ion inside the cell
Number of open ion channels specific for that ion
O Electrical charge of the ion
A cell biologist is performing an experiment using the voltage clamp method in which they are allowed to change the voltage in the membrane potential. They are wanting to record potassium currents and notice that for a certain membrane potential range, the voltage clamp highlights that there is an inward current of potassium. Would these readings make sense?
Chapter 11 Solutions
ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
Ch. 11.1 - List and give examples of the general functions of...Ch. 11.2 - Name the components of the CNS and the PNS.Ch. 11.2 - What are the following: sensory receptor, nerve,...Ch. 11.2 - Based on the direction they transmit action...Ch. 11.2 - Based on the structures they supply, what are the...Ch. 11.2 - Where are the cell bodies of sensory, somatic...Ch. 11.2 - What are the subcategories of the ANS?Ch. 11.2 - Compare the general functions of the CNS and the...Ch. 11.3 - Describe and give the function of a neuron cell...Ch. 11.3 - What is the function of the trigger zone?
Ch. 11.3 - Prob. 11AYPCh. 11.3 - Describe the three types of neurons based on...Ch. 11.3 - Prob. 13AYPCh. 11.3 - What characteristic makes glial cells different...Ch. 11.3 - Which glial cells are found in the CNS? In the...Ch. 11.3 - Which type of glial cell Supports neurons and...Ch. 11.3 - Name the different kinds of glial cells that ore...Ch. 11.3 - Prob. 18AYPCh. 11.3 - How do myelinated axons differ from unmyelinated...Ch. 11.4 - What makes up gray matter and white matter?Ch. 11.4 - Prob. 21AYPCh. 11.5 - Describe the concentration differences for Na+ and...Ch. 11.5 - Prob. 23AYPCh. 11.5 - Describe leak ion channels and go ted ion...Ch. 11.5 - Define ligand, receptor, and receptor site.Ch. 11.5 - What kinds of stimuli cause gated ion channels to...Ch. 11.5 - Prob. 27AYPCh. 11.5 - Prob. 28AYPCh. 11.5 - Prob. 29AYPCh. 11.5 - What happens to cause depolarization and...Ch. 11.5 - Prob. 31AYPCh. 11.5 - Prob. 32AYPCh. 11.5 - How does on action potential differ from a local...Ch. 11.5 - Prob. 34AYPCh. 11.5 - Prob. 35AYPCh. 11.5 - Prob. 36AYPCh. 11.5 - Prob. 37AYPCh. 11.5 - Prob. 38AYPCh. 11.5 - What is action potential frequency? What two...Ch. 11.5 - Describe sub-threshold threshold, maximal,...Ch. 11.5 - Prob. 41AYPCh. 11.5 - What prevents on action potential from reversing...Ch. 11.5 - Prob. 43AYPCh. 11.5 - Prob. 44AYPCh. 11.5 - Prob. 45AYPCh. 11.6 - What are the components of a synapse? What is the...Ch. 11.6 - What is on electrical synapse? Describe its...Ch. 11.6 - Describe the release of neurotransmitter In a...Ch. 11.6 - Prob. 49AYPCh. 11.6 - Prob. 50AYPCh. 11.6 - Prob. 51AYPCh. 11.6 - Explain the production of EPSPs and IPSPs. Why are...Ch. 11.6 - Prob. 53AYPCh. 11.6 - Prob. 54AYPCh. 11.6 - Prob. 55AYPCh. 11.6 - Prob. 56AYPCh. 11.7 - Diagram a convergent pathway, a divergent pathway,...Ch. 11 - The part of the nervous system that controls...Ch. 11 - Motor neurons and interneurons are _______...Ch. 11 - Cells found in the choroid plexuses that secrete...Ch. 11 - Glial cells that are phagocytic within the central...Ch. 11 - Action potentials are conducted more rapidly In...Ch. 11 - Clusters of neuron cell bodies within the...Ch. 11 - Prob. 7RACCh. 11 - Prob. 8RACCh. 11 - Compared with the inside of the resting plasma...Ch. 11 - Prob. 10RACCh. 11 - Prob. 11RACCh. 11 - If the permeability of the plasma membrane to K+...Ch. 11 - Decreasing the extracellular concentration of K+...Ch. 11 - Prob. 14RACCh. 11 - Which of these statements about ion movement...Ch. 11 - Prob. 16RACCh. 11 - Graded potentials a. spread over the plasma...Ch. 11 - During the depolarization phase of an action...Ch. 11 - Prob. 19RACCh. 11 - Prob. 20RACCh. 11 - Prob. 21RACCh. 11 - Neurotransmitter substances are stored in vesicles...Ch. 11 - In a chemical synapse, Action potentials in the...Ch. 11 - An inhibitory presynaptic neuron can affect a...Ch. 11 - Summation Is caused by combining two or more...Ch. 11 - In convergent pathways. a. the response of the...Ch. 11 - A child eats a whole bottle of salt (NaCl)...Ch. 11 - Prob. 2CTCh. 11 - Prob. 3CTCh. 11 - Prob. 4CTCh. 11 - The speed of action potential propagation and...Ch. 11 - Prob. 6CTCh. 11 - Strychnine blocks receptor sites for inhibitory...Ch. 11 - Prob. 8CTCh. 11 - Prob. 9CTCh. 11 - Prob. 10CT
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
- The accelerating flow of _______ ions through gated channels across the membrane triggers an action potential. a. potassium b. sodium c. hydrogen d. a and barrow_forwardHow would you define the term "membrane potential." The ability of a cell to perform its specialized function. A voltage difference that exists across the outer and inner face of the plasma membrane. The possibility of a given cell activity being accomplished. Aaarrow_forwardThe membrane potential caused by differences in ions across the plasma membrane of an electrically excitable cell (when not stimulated) is called: action potential resting membrane potential graded potential local potentialarrow_forward
- When the membrane voltage shifts from the RMP to a more negative voltage; this is a depolarization repolarization hyperpolarization polarizationarrow_forwardSodium (Na*) and Potassium (K+) are equally distributed across the neuronal membrane at resting membrane potential because of the: O Unassisted passive diffusion across the membrane O Nat/K+ Pump O Nongated Channels Voltage-gated Channels Chemically-gated Channelsarrow_forwardThe resting potential of most cells is most dependent concentration gradient of: on the transmembrane Chloride Sodium Potassium Calciumarrow_forward
- Which of the following BEST explains the inside negative potential in resting neurons? sodium flows down its electrochemical gradient through sodium-selective channels that are open in resting neurons membrane transporters produce a large sodium concentration gradient by selectively accumulating sodium ions outside the cell the membrane of a resting neuron is more permeable to potassium ions than to other ions present a larger concentration of chloride ions are found inside the cell making the inside of the cell more negative compared to the outside of the cellarrow_forwardRepolarization occurs because Multiple Choice more sodium ions diffuse into the cell than potassium ions diffuse out of it. potassium ions continue to diffuse out of the cell after the inactivation gates of the voltage-gated sodium ion channels begin to close. the increased potassium ion permeability lasts slightly longer than the time required to bring the membrane potential back to its resting level. the extra efflux of potassium ions causes the membrane potential to become slightly more positive than the resting value. the inactivation gates of the voltage-gated sodium ion channels begin to open and the diffusion of sodium ions decreases.arrow_forwardAn action potential is regarded as an example of positive feedback. Which of the following examples below best illustrates the positive feedback aspect of an action potential? Voltage gated potassium ion channels open slowly and remain open long enough to cause hyperpolarization The sodium potassium pump consistently moves ions as long as ATP is available, and regardless of membrane potential changes. A threshold stimulus will cause the opening of voltage gated sodium ion channels that will cause further depolarization by opening still more voltage gated sodium ion channels along the axon.arrow_forward
- If potassium permeability increases the cell depolarizes the cell hyperpolarizes voltage gated ion channels open an action potential occurs more than one of the above is correctarrow_forwardA resting cell's membrane is more permeable to K+ simply because: K has a higher atomic number than Na. The Na+/K+ ATPase only works in response to a stimulus. There are more voltage-gated K+ channels than voltage-gated Na+ channels in the cell membrane. There are more K+ leaky channels than Na+ leaky channels in the cell membrane.arrow_forwardWhen a membrane channel opens, there is a reduction in the membrane_ which generates allowing ions to enter the neuron increasing the membrane measured by a change in capacitance, resistance, potential energy, voltage voltage, capacitance, potential energy, resistance resistance, capacitance, potential energy, voltage potential energy, resistance, voltage, capacitancearrow_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 LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Necrosis vs. Apoptosis: Cell Death; Author: AMBOSS: Medical Knowledge Distilled;https://www.youtube.com/watch?v=zFrBwGfOQs0;License: Standard Youtube License