Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 6TY
An__________ neurotransmitter causes________ of the postsynaptic membrane.
a. inhibitory... depolarization
b. excitatory ... depolarization
c. inhibitory... hyperpolarization
d. Both (b) and (c) are correct.
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Chapter 11 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 11 - Do you see any change in the popularity of high...Ch. 11 - Prob. 2QCCh. 11 -
1. Distinguish between the central nervous system...Ch. 11 - Explain what is meant by summation of graded...Ch. 11 - Describe, in terms of the opening and closing of...Ch. 11 - Prob. 4CRCh. 11 - Prob. 5CRCh. 11 -
6. List the three major divisions of the brain...Ch. 11 - Prob. 7CRCh. 11 - Prob. 8CR
Ch. 11 - Prob. 9CRCh. 11 - Prob. 10CRCh. 11 -
1. Which of the following statements correctly...Ch. 11 - Prob. 2TYCh. 11 - Prob. 3TYCh. 11 - What do multiple sclerosis and ALS (amyotropic...Ch. 11 - All of the following are directly involved in...Ch. 11 - An__________ neurotransmitter causes________ of...Ch. 11 - Prob. 7TYCh. 11 - Prob. 8TYCh. 11 - Prob. 9TYCh. 11 - Prob. 10TYCh. 11 - Prob. 11TYCh. 11 - Prob. 12TYCh. 11 - Prob. 13TYCh. 11 - Prob. 14TYCh. 11 - Prob. 15TYCh. 11 -
1. Explain in terms of brain anatomy and function...Ch. 11 - Prob. 2AWKCh. 11 - Prob. 3AWKCh. 11 - Prob. 4AWKCh. 11 - Prob. 5AWKCh. 11 - Prob. 6AWKCh. 11 - Prob. 7AWKCh. 11 -
8. Certain bacteria, such as those that cause...
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- In which of these ways does a metabotropic synapse differ from an ionotropic synapse? a. Its effects are slower to start and last longer. b. Its effects are faster to start and last longer. c. Its effects are slower to start and briefer in duration. d. Its effects are faster to start and briefer in duration.arrow_forwardNeurotransmitters are released by_____ . a. axon terminals c. dendrites b. a neuron cell body d. glial cellsarrow_forwardA common feature of action potentials is that they(A) cause the membrane to hyperpolarize and then depolarize.(B) can undergo temporal and spatial summation.(C) are triggered by a depolarization that reaches threshold.(D) move at the same speed along all axons.arrow_forward
- If you increase the amount of neurotransmitter in the synaptic cleft, how would you expect the post-synaptic potential (PSP) to change? a) The PSP would be stronger b) The PSP would change from depolarizing to hyperpolarizing c) The PSP would not changearrow_forwardWhat determines the effect of neurotransmitter release on the post-synaptic neurons? a. the size of the action potential. b. the post-synaptic receptors c. the neurotransmitter contained in the synaptic vesicles. d. the concentration of calcium ions reached in presynaptic terminals. e. the size of the synaptic vesicles.arrow_forwardA neurotransmitter called "GABA" decreases the rate of action potential generation in neurons, but the effect can be overridden by excitatory neurotransmitters. Alcohol binds to the GABA receptor and has the same effect. Alcohol must Select one: a. Cause depolarization in neurons b. Cause hyperpolarization in neurons c. Block calcium entry at the axon terminus d. Block voltage-gated sodium channelsarrow_forward
- Post synaptic neurons membrane potentials are less negative than resting membrane potentials when this occur A. Creates a new set point for the resting membrane potential B. Has a lower propensity to produce an action potential C. Reacts by generating action potential D. Higher chance of reaching the potential thresholdarrow_forwardA patch-clamp device is used to a. Study the properties of individual neurotransmitters b. Study the properties of individual membrane channels c. Measure the strength of an electrochemical gradient d. Infuse different kinds of ions into an axonarrow_forwardSuppose you want to cause the presynaptic terminal of an axon to release its transmitter. How could you do so without an action potential?A. Decrease the temperature at the synapse.B. Use an electrode to produce IPSPs in the postsynaptic neuron.C. Inject water into the presynaptic terminal.D. Inject calcium into the presynaptic terminal.arrow_forward
- Multiple sclerosis is a neurodegenerative disease in which the body’s immune system attacks and breaks down the white matter in the nervous system. A. What is another word (other than “white matter”) for the structure or type of cells that are affected in patients with MS? B. Given what these cells/structures do, what effect on neural transmission do you think MS has?arrow_forwardWhen an inhibitory neurotransmitter such as GABA opens cl– channels in the plasma membrane of a postsynaptic neuron, why does this make it harder for an excitatory neurotransmitter to excite the neuron?arrow_forwardIn the sympathetic nervous system, which of the following prevents apoptosis? A. Steroid hormones B. Nerve growth factor C. Physical exercise D. Myelinationarrow_forward
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