Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 39, Problem 15TYK
Summary Introduction
To review:
Designing an experiment that tests whether neurons are connected by electrical or chemical synapse.
Introduction:
Synapses are small gaps between two neurons that are used to maintain communication between them. This type of synapse is known as a chemical synapse. Although not all neurons communicate this way, the plasma membrane of some neurons directly connects and communicate with each other through a site called gap junction. This type of connection is known as an electrical connection.
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Chapter 39 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 39.1 - Prob. 1SBCh. 39.1 - Prob. 2SBCh. 39.1 - Prob. 3SBCh. 39.2 - Prob. 1SBCh. 39.2 - Prob. 2SBCh. 39.3 - Prob. 1SBCh. 39.3 - Prob. 2SBCh. 39.4 - Prob. 1SBCh. 39 - Prob. 1TYKCh. 39 - Prob. 2TYK
Ch. 39 - An example of a synapse could be the site where:...Ch. 39 - Prob. 4TYKCh. 39 - The major role of the Na+/K+ pump is to: a. cause...Ch. 39 - In the propagation of a nerve impulse: a. the...Ch. 39 - Which of the following does not contribute to...Ch. 39 - Which of the following statements best describes...Ch. 39 - Prob. 9TYKCh. 39 - Prob. 10TYKCh. 39 - Prob. 11TYKCh. 39 - Prob. 12TYKCh. 39 - Prob. 13TYKCh. 39 - Prob. 14TYKCh. 39 - Prob. 15TYKCh. 39 - Prob. 16TYKCh. 39 - You learned in this chapter that Na+/K+ active...Ch. 39 - Prob. 2ITDCh. 39 - Prob. 3ITD
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- Draw a neuron, label its parts, and describe the functions of these parts.arrow_forwardAt rest, a neuron has a lower concentration of sodium than the surrounding fluid. When a neuron sends a signal, it opens sodium channels. What happens to the sodium when the sodium channels open? A. The sodium diffuses out of the cell. B. The sodium is pumped into the cell. C. The sodium is pumped out of the cell. D. The sodium diffuses into the cell.arrow_forwardDraw a simple schematic of a neuron and label its parts. Where does “information” usually go in and through which structure is it passed on? Where is the action potential generated?arrow_forward
- Discuss the early and late associative effects in the cellular processes of neurons that occur as a consequence of classical conditioning.arrow_forwardThe presence of an electrical gradient is responsible for both the resting membrane potential and the action potential in the neuron.a. In this case who is responsible for maintaining the electric gradient to produce a potential for the resting membrane?b. Explain what is meant by an electrical gradient in the context of a cell (neuron)!arrow_forwardWhen the neuron’s membrane is at rest, where are the sodium ions and potassium ions most concentrated?A. Sodium is mostly outside and potassium is mostly inside.B. Sodium is mostly inside and potassium is mostly outside.C. Both ions are mostly inside the cell.D. Both ions are mostly outside the cell.arrow_forward
- What does the statement "synaptic transmission is quantal" mean? Provide three lines of evidence that support the statement. Edit mo Tabloarrow_forwardillustrate with full creative freedom a cartoon of " the process of passing on action potentials at a chemical synapse and the difference between excitatory and inhibatory synapses in that action"arrow_forwardUse this illustration to place these events in the order they occur during synaptic communication: Column A Column B a. Voltage gated sodium channels carry the action potential to the synapse by allowing the influx of sodium ions. 1. 1 2 b. An increase in calcium levels triggers vesicle release. 3. 3 c. Sodium enters the post-synaptic cell, causing it to depolarize. 4. 4 d. Sodium influx at the synapse activates voltage gated 5. calcium channels which allow calcium ions to enter the presynaptic neuron. 6. 6. e. Neurotransmitters are released into the synaptic cleft. f. Ligand-gated ion channels are opened by the neurotransmitters. 2.arrow_forward
- Illustrate how you would set up a voltage clamp experiment to study the eletrochemical propertis of an axon. Include appropriate phrase explaining the use of each mentioned instrument or devicearrow_forwardConstruct a unit concept map to show the relationships among the following set of terms: action potential, arbor vitae, brainstem, diencephalon, epineurium, gray matter, lateral horn, nerve fiber, node of Ranvier, synaptic cleftarrow_forwardIn an essay describe in detail the function for three type of potentials seen in neurons and give examples.arrow_forward
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