CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Textbook Question
Chapter 28, Problem 7TYK
Anesthetics block pain by blocking the transmission of nerve signals. Which of these three chemicals might work as anesthetics? (Choose all that apply and explain your selections.)
a. a chemical that prevents the opening of voltage-gated Na+ channels in membranes
b. a chemical that inhibits the enzymes that degrade neurotransmitters
c. a chemical that blocks neurotransmitter receptors
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Select All statements that are TRUE regarding the effects of administering a molecule that is a precursor for the synthesis of a neurotransmitter
A. Temporarily compensate for neuron cell death by increased release of the neurotransmitter (ex. L-dopa used as treatment for Parkinson’s disease)
B. Increase the rate of synthesis of that neurotransmitter
C. Block the reuptake of the neurotransmitter back into the axon terminal
D. Immediately alter then number of postsynaptic receptors
E. Act as an indirect antagonist by activating autoreceptors
The made-up drug leakyhose degrades myelin resulting in myelin becoming more porous and therefore a poor insulator.
2.) Which of the following would NOT be an effect of leakyhose?
A. Propagation of the action potential would likely slow
B. The action potential may degrade because it can’t properly be regenerated
C. The action potential would not propagate but would rather reverse directions
D. Saltatory conduction may be disrupted
E. All of the above effects are consistent with the administration of leakyhose
Diisopropyl fluorophosphate is an insecticide that works by binding with cholinesterase enzyme.
Which of the following statements does NOT describe the function of diisopropyl fluorophosphate correctly?
a. It blocks the acetylcholine receptor in the postsynaptic membrane.
b. It causes acetylcholine to continuously contract the diaphragm or heart muscle, which leads to death.
c. It causes muscle fatigue and paralysis to occur as muscle contraction cannot be suppressed.
d. It causes acetylcholine to accumulate in the synapse.
Chapter 28 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 28 - Test your understanding of the nervous system by...Ch. 28 - The inside of the neuron has a lower concentration...Ch. 28 - Prob. 3TYKCh. 28 - What causes a nerve signal to move from one end of...Ch. 28 - Prob. 5TYKCh. 28 - Prob. 6TYKCh. 28 - Anesthetics block pain by blocking the...Ch. 28 - Prob. 8TYKCh. 28 - Using microelectrodes, a researcher recorded nerve...Ch. 28 - Prob. 10TYK
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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
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- Glutamate's effect when it binds with protein receptors on the post synaptic membrane is to: a. Initiate movement of potassium ions out of the membrane b. Initiate movement of sodium ions into the membrane c. Initiate movement of sodium ions out of the membrane d. Initiate movement of potassium ions into the membrane GABA is an example of an inhibitory neurotransmitter. Drugs that increase the level of GABA are used to treat diseases such as epilepsy where the signal transmission needs to be impaired. The effect of the inhibitory neurotransmitter on the postsynaptic membrane is to: a. hyperpolarize the postsynaptic membrane b. decrease the threshold level c. depolarize the postsynaptic membrane d. maintain the resting potential Calcium is vital for bone growth, but it's also an important part of neural transmission. Calcium is required for the axon terminal to: a. Reuptake the neurotransmitter via exocytosis b. The neurotransmitter to be released by endocytosis c. The neurotransmitter…arrow_forwardWhich of the following is true of neuropeptides?A. They produce effects that last for minutes.B. They are chemically similar to the genes on a chromosome.C. They are released close to their receptors.D. They are released from the tip of an axon.arrow_forwardIn an experiment you place a neuron and its synaptic contacts into a medium containing no calcium ions. You stimulate the neuron causing an action potential to propagate down the axon into the axon terminal of the neuron. 3.) What is the most likely result of this experimental manipulation? A. Prolong the refractory period of the action potential B. Decrease the time required to move sodium ions out of the axon terminal C. Prevent neurotransmitter from binding to receptors on postsynaptic cells D. Enhance the voltage changes associated with the action potential E. Prevent release of neurotransmitter into the synapsearrow_forward
- The drug Buckeyium binds to the NMDA receptor at the orthosteric binding site (were glutamate would normally bind). Assume that glycine is already bound, and that magnesium is not blocking the NMDAR ion channel. If the channel does not open as a result of Buckeyium binding than Buckeyium would be considered a ____________. A. Indirect Antagonist B. Positive Allosteric Modulator C. Negative Allosteric Modulator D. None of the choice options are correct E. Non-Competitive Antagonistarrow_forwardGlutamate is Select one: a. All of these b. often synthesized from glial-synthesized glutamine c. an amino acid d. neurotoxic at high concentrations. e. the most commonly used neurotransmitter in the brainarrow_forwardCatecholamine (Epinephrine)-blockers are often used as a treatment to dilate blood vessels and therefore decrease arterial blood pressure (as a treatment for hypertension). This fact is excellent evidence to prove that the nervous system normally controlling the diameter of the arterial blood vessels is the: a. Somatosensory nervous system b. Sympathetic nervous system c. Reticular attenuating nervous system d. Parasympathetic nervous systemarrow_forward
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