Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 42.2, Problem 3LO
Summary Introduction
To determine: The mechanisms for the generation of action potential by voltage-gated channels
Introduction: The neural membrane contains several passages called the ion channels. These ion channels are the pores formed by the protein found in the membrane of the neuron. The passages help in the conduction of nerve impulses.
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What would occur if voltage - regulated Na+ and k+ gates opened at the same time rather than at different times, during the production of an action potential?
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List the two types of voltage-gated channels that playimportant roles in the production of action potentials.
Chapter 42 Solutions
Biology
Ch. 42.1 - Differentiate between subdivisions of the...Ch. 42.1 - Prob. 2LOCh. 42.1 - Explain the roles of the different nervous system...Ch. 42.2 - Contrast the relative concentrations of important...Ch. 42.2 - Prob. 2LOCh. 42.2 - Prob. 3LOCh. 42.3 - Prob. 1LOCh. 42.3 - Prob. 2LOCh. 42.3 - Prob. 3LOCh. 42.4 - Prob. 1LO
Ch. 42.4 - Prob. 2LOCh. 42.4 - Prob. 3LOCh. 42.5 - Describe the organization of the peripheral...Ch. 42.5 - Prob. 2LOCh. 42.5 - Prob. 3LOCh. 42.5 - Prob. 4LOCh. 42 - Data analysis Draw the resulting potentials for...Ch. 42 - Prob. 2DACh. 42 - Which of the following best describes the...Ch. 42 - The ____ cannot be controlled by conscious...Ch. 42 - Prob. 3UCh. 42 - Inhibitory neurotransmitters a. hyperpolarize...Ch. 42 - White matter is ______, and gray matter is...Ch. 42 - During an action potential a. the rising phase is...Ch. 42 - Prob. 7UCh. 42 - Imagine that you are doing an experiment on the...Ch. 42 - The Na+/K+ ATPase pump is a. not required for...Ch. 42 - Prob. 3ACh. 42 - The following is a list of the components of a...Ch. 42 - Prob. 5ACh. 42 - As you sit quietly reading this sentence, the part...Ch. 42 - G proteincoupled receptors are involved in the...Ch. 42 - Tetraethylammonium (TEA) is a drug that blocks...Ch. 42 - Describe the status of the Na+ and K+ channels at...Ch. 42 - Describe the steps required to produce an...Ch. 42 - Prob. 4S
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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
- Define an action potential.arrow_forwardConformational changes in channel proteins brought about by voltage changes are responsible for opening and closing Na+ and K+ gates during the generation of an action potential. (True or false?)arrow_forwardList the series of events at the membrane that generate an action potential, including the contributions of chemically gated and voltage-gated ion channels?arrow_forward
- Describe the role of sodium ions and sodium channels in generating an action potentialarrow_forwardDiscuss how summation occur in the voltage membrane.arrow_forwardName the three phases of an action potential. Describe for each the underlying molecular basis and the ion involved. Why is the term voltage-gated channel applied to Na+ channels involved in the generation of an action potential?arrow_forward
- List the characteristics of a local potential versus an action potentials. Describe where each happens and what type of gates are involved and what is achievedarrow_forwardDescribe the voltage-gated ion channels that are essential for the development of the action potential?arrow_forwardDifferentiate between ligand - gated and voltage-gated channels.arrow_forward
- Describe action potentials (nerve impulses) including: Thresholds All-or-none principle Phases of action potential generation Refractory periodarrow_forwardIf action potential propagation from one neuron to another neuron requires ACh release, what event at the synaptic cleft explains the need for action potentials to arrive at a high rate before the post-synaptic membrane achieves threshold? the lack of sodium voltage gated channels on the post-synaptic membrane O the rapid breakdown of ACh by ACHE at the synaptic cleft the slow release of ACh by the synaptic vessicles the slow movement of sodium through chemical gates Previous Next MacBook Airarrow_forwardExplain how frequency of action potentials differs from the velocity of an action potential propagation.arrow_forward
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