EBK BIOLOGY
6th Edition
ISBN: 8220106777640
Author: Maier
Publisher: PEARSON
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Textbook Question
Chapter 24, Problem 9LTB
The effects of a neurotransmitter could be increased by ___________,
- increasing the number of receptors on the postsynaptic cell;
- preventing reuptake;
- providing more enzymes involved in synthesizing the neurotransmitter;
- inhibiting enzymes involved in breakdown of the neurotransmitter from the synapse;
- all of the above
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______Synaptic potentiation ____ _________results when a presynaptic cell is stimulated repeatedly or continuously, resulting in an __________ release of neurotransmitter.__________ __________results when another neuron __________ the release of an excitatory neurotransmitter from a presynaptic cell.
Chapter 24 Solutions
EBK BIOLOGY
Ch. 24 - Prob. 1LTBCh. 24 - How do sensory, motor, and interneurons differ?Ch. 24 - What are the general senses?Ch. 24 - Which brain structure controls language, memory,...Ch. 24 - Prob. 5LTBCh. 24 - Prob. 6LTBCh. 24 - Prob. 7LTBCh. 24 - Neurotransmitters. ___________. are electrical...Ch. 24 - The effects of a neurotransmitter could be...Ch. 24 - Prob. 10LTB
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- When action potentials arrive at a synapse between a neuron and another cell, they stimulate the release of molecules of a ________ that diffuse over to that cell.arrow_forwardA neuron responds to adequate stimulation with _______, a type of self-propagating signal.arrow_forward________ "mimic" or enhance the action of certain neurotransmitters. Select an answer from the options below Myelinated axons Antagonist drugs Endorphin drugs Agonist drugsarrow_forward
- Both of these Neither of these QUESTION 28 During the process of muscle relaxation, changes to the sarcomere include: Increased size of the l-band Decreased size of the H-zone Increased size of the A-band All of the above OUESTION 30 Click Save and Submit to save and submit. Click Save All Answers to save all answers.arrow_forwardAt a given synapse, the _____ neuron has neurotransmitter receptors.arrow_forwardIncreasing the amount of action potentials that arrive at the presynaptic terminal will: (Can pick more than one) Increase the number of vesicles that fuse with the presynaptic membrane Increase the amount of depolarization in the terminal Increase the amount of neurotransmitter released. Increase the amount of Ca2+ that enters the presynaptic terminal.arrow_forward
- In terms of function when a presynaptic neuron receiving input from a nearby inhibitory neuron, it can be inferred that the both neurons firing won't be synchronized activation of the inhibitory neuron is nullified activation of the presynaptic neurotransmitter release is enhanced this type of interaction represents a regulatory input of neuronal activationarrow_forwardThese neurons belongs to the CNS: (More than one possible choice) A neuron in the brain A neuron carrying a signal into a skeletal muscle A neuron carrying a signal into cardiac muscle A neuron carrying signals form receptors in the skin A neuron carrying signals from the stomach a neuron in the spinal cord grey matterarrow_forwardSelect all criterion for classifying a substance as a neurotransmitter. (select all that apply) Existence of the substance in the presynaptic terminal. Release of the substance when nerve impulses reach the terminal ending. Existence of specific receptors for the substance on the postsynaptic membrane. Ability of the substance to travel long distances between the site of origin and the target area.arrow_forward
- Compare and contrast the events that occur at a neuromuscular junction (NMJ) and a neuron-neuron junction (a chemical synapse (CS)). Take it step by step, pointing out similarities or differences at each step. Begin with “Both processes begin with an action potential travelling down the axon.” and then tell me what is the same and what is different as the story unfolds.arrow_forwardThe image below shows a presynaptic cell releasing neurotransmitters that are being bound by the postsynaptic cell. EXPLAIN the physiological events that would occur in the postsynaptic cell after binding this neurotransmitter. Assume that the neurotransmitter is excitatory.arrow_forwardSpastic paralysis (resulting from the failure of muscles to relax), induced by the neurotoxin strychnine, occurs when this poison blocks the binding of: the excitatory neurotransmitter acetylcholine to post-synaptic sodium channels the excitatory neurotransmitter glutamate to post-synaptic calcium channels the excitatory neurotransmitter serotonin to post-synaptic potassium channels the inhibitory neurotransmitter glycine to post-synaptic chloride channels the inhibitory neurotransmitter melatonin to post-synaptic bicarbonate channelsarrow_forward
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