Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Chapter 37, Problem 3TYU
Summary Introduction
Introduction:
Neurotransmitter receptors are the regions that receive signals and then help in triggering the action potentials.
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Check out a sample textbook solutionStudents have asked these similar questions
A channel opens on a postsynaptic membrane that causes a negative ion to leave the cell. What type of graded potential is this?
a. depolarizing
b. repolarizing
c. hyperpolarizing
d. non-polarizing
Answer the question :
What happens to the membrane potential of a neuron when an action potential is stimulated?
A.
The membrane potential goes from positive to negative.
B.
The membrane potential remains positive.
C.
The membrane potential goes from negative to positive.
D.
The membrane potential remains negative.
Chapter 37 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 37.1 - Prob. 1CCCh. 37.1 - Describe the basic pathway of information flow...Ch. 37.1 - WHAT IF? How might increased branching of an axon...Ch. 37.2 - Under what circumstances could ions flow through...Ch. 37.2 - WHAT IF? Suppose a cells membrane potential shifts...Ch. 37.2 - Prob. 3CCCh. 37.3 - How do action potentials and graded potentials...Ch. 37.3 - In multiple sclerosis (from the Greek skleros,...Ch. 37.3 - Prob. 3CCCh. 37.3 - WHAT IF? Suppose a mutation caused gated sodium...
Ch. 37.4 - Prob. 1CCCh. 37.4 - Organophosphate pesticides work by inhibiting...Ch. 37.4 - MAKE CONNECTIONS Name one or more membrane...Ch. 37 - What happens when a resting neuron's membrane...Ch. 37 - Prob. 2TYUCh. 37 - Prob. 3TYUCh. 37 - Why are action potentials usually conducted in one...Ch. 37 - Which of the following is a direct result of...Ch. 37 - Suppose a particular neurotransmitter causes an...Ch. 37 - Prob. 7TYUCh. 37 - Prob. 8TYUCh. 37 - DRAW IT Suppose a researcher inserts a pair of...Ch. 37 - Prob. 10TYUCh. 37 - FOCUS ON EVOLUTION An action potential is an...Ch. 37 - Prob. 12TYUCh. 37 - SYNTHESIZE YOUR KNOWLEDGE The rattlesnake alerts...
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- What is myelin? A. Projection on a neuron cell body that is sensitive to stimuli B. Another name for the cell body of a neuron C. A membrane wrapping on an axon that increases the speed of action potential propogation D. A long, slender process of a neuron that is capable of conducting nerve impulsesarrow_forwardA neuron may receive signals from thousands of synaptic terminals. What determines whether the receiving neuron will respond by transmitting a signal? a. the concentration of transmitter inside the receiving neuron b. the summation of excitatory and inhibitory signals received c. the number of glial cells contact the receiving neuronarrow_forwardThe nerve impulses always travel in one direction from dendrites to axon terminals. What prevents an action potential from travelling backward? a. Hyperpolarization of the neuron makes the membrane more positive and prevents another action potential. b. After repolarization, the refractory period occurs, where the sodium ions are found outside the cell. c. After repolarization, the reversal of ions prevents another action potential as there would not be enough sodium ions outside the cell to rush in. d. The refractory period prevents another action potential by lowering the threshold potential.arrow_forward
- At 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_forwardSchwann cells have a function in the PNS that is similar to that of which cells in the CNS? Group of answer choices a.Oligodendrocytes b.Astrocytes c.Microglia d.Ependymal cellsarrow_forwardNeurotransmitters: a. Can only inhibit the postsynaptic cell b. Can be part of a process that regulates transcription and translation in the postsynaptic cell с. Are bound to their receptors forever, until the receptor is degraded and recycled. d. Can exit the presynaptic cell without assistance. e. Can only excite the postsynaptic cell Clathrin: Is embedded in the cell membrane of the synaptic terminal. a. b. Degrades vesicles for recycling and return to the axon hillock с. Mediates ALL endocytosis in the body, including the formation of vesicles in the synapse. d. Forms a coat of octagonal proteins. e. Helps the vesicle leave the pre-synaptic cell, and fuse to the membrane of the post-synaptic cellarrow_forward
- Where does collateral sprouting take place? a. In the cell body b. In the axon c. In the dendrites d. In both the axons and the dendritesarrow_forwardThe drawing back in to the terminal button of neurotransmitter molecules after their release in to synapse is known as A. Enzymatic degradation b. Reuptake c. Termination D. closure The telencephalon and diencephalon compose the The two divisons of the mesencephalo A . pons and cerebellum b. Thalamus and hypothalamus c. tectum and tegmemtum d. substantia nigra and reticular formationarrow_forwardWhich of the following insulates and protects a neuron’s axon, as well as helps speed along electrical impulses? a. synaptic knobs c. myelin sheath b. receptor sites d. neuromodulatorsarrow_forward
- The pilomotor reflex is activated when a person experiences a strong emotion such as excitement or fear. This reflex raises hairs on the body, causing what's commonly called goosebumps. This reflex is a result of which division of the nervous system? A. Somatic nervous system B. Sympathetic nervous system C. Central nervous system D. Parasympathetic nervous systemarrow_forwardThe human nervous system is capable of a wide range of functions. What is the basic unit of the nervous system? A. Glial cell B. Meninges C. Neuron D. Cerebrospinal fluidarrow_forwardMeningitis is a viral or bacterial infection of the brain. Which cell type is the first to have its function disrupted during meningitis? a. astrocytes b. microglia c. neurons d. satellite gliaarrow_forward
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