EBK BIOLOGY: CONCEPTS AND INVESTIGATION
4th Edition
ISBN: 9781259869747
Author: Hoefnagels
Publisher: MCGRAW HILL BOOK COMPANY
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 26, Problem 4MCQ
What event triggers an action potential?
- a. Opening of sodium channels
- b. Opening of delayed potassium channels
- c. High concentration of negative ions outside the cell
- d. Activation of the sodium- potassium pump
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What would be the purpose of giving a drug that stimulates dopamine receptors to a stroke patient? A. To break up blood clots in the nervous system B. To increase collateral sprouting C. To combat diaschisis D. To stimulate regrowth of axons
Where are neurotransmitter receptors located?(A) the nuclear membrane(B) the nodes of Ranvier(C) the postsynaptic membrane(D) synaptic vesicle membranes
The difference between the channels along the axon and the channels in the axon
terminal is that?
a) axon channels are voltage-gated sodium channels and axon terminal channels are
voltage-gated calcium channels
b) there is no difference
c) axon channels are voltage-gated sodium channels and axon terminal channels are ligand-
gated sodium channels
Chapter 26 Solutions
EBK BIOLOGY: CONCEPTS AND INVESTIGATION
Ch. 26.1 - Prob. 1MCCh. 26.1 - Prob. 2MCCh. 26.1 - Prob. 3MCCh. 26.2 - Prob. 1MCCh. 26.2 - Where is the myelin sheath located?Ch. 26.2 - Prob. 3MCCh. 26.2 - What are the functions of each of the three...Ch. 26.3 - Describe the forces that maintain the distribution...Ch. 26.3 - Prob. 2MCCh. 26.3 - Prob. 3MC
Ch. 26.3 - Prob. 4MCCh. 26.3 - What prevents action potentials from spreading in...Ch. 26.3 - Prob. 6MCCh. 26.3 - How do myelin and the nodes of Ranvier speed...Ch. 26.4 - Describe the structure of a synapse.Ch. 26.4 - Prob. 2MCCh. 26.4 - Prob. 3MCCh. 26.4 - Prob. 4MCCh. 26.5 - Prob. 1MCCh. 26.5 - Prob. 2MCCh. 26.5 - Prob. 3MCCh. 26.5 - Prob. 4MCCh. 26.6 - Prob. 1MCCh. 26.6 - Prob. 2MCCh. 26.6 - Prob. 3MCCh. 26.6 - List some structures that protect the central...Ch. 26.6 - Prob. 5MCCh. 26.7 - The researchers conducted a behavioral experiment...Ch. 26.7 - Prob. 2MCCh. 26 - Some cells of the central nervous system are...Ch. 26 - Prob. 2MCQCh. 26 - Prob. 3MCQCh. 26 - What event triggers an action potential? a....Ch. 26 - Prob. 5MCQCh. 26 - Prob. 6MCQCh. 26 - Prob. 7MCQCh. 26 - Prob. 8MCQCh. 26 - Damage to the surface tissue of the spinal cord...Ch. 26 - Prob. 10MCQCh. 26 - Describe some invertebrate nervous systems. Why do...Ch. 26 - Prob. 2WIOCh. 26 - Prob. 3WIOCh. 26 - Prob. 4WIOCh. 26 - What is the connection between the threshold...Ch. 26 - Write a nonbiological analogy for resting...Ch. 26 - Prob. 7WIOCh. 26 - Sketch a synapse: label the axon and synaptic...Ch. 26 - Describe the events that occur at a synapse when a...Ch. 26 - Prob. 10WIOCh. 26 - Prob. 11WIOCh. 26 - Cerebral palsy is a nervous system disorder that...Ch. 26 - Traumatic brain injury can occur when a person...Ch. 26 - Prob. 14WIOCh. 26 - Prob. 15WIOCh. 26 - Prob. 16WIOCh. 26 - Prob. 17WIOCh. 26 - Prob. 1PITCh. 26 - Prob. 2PITCh. 26 - Prob. 3PITCh. 26 - PULL IT TOGETHER 4. Acid the somatic, autonomic,...
Additional Science Textbook Solutions
Find more solutions based on key concepts
6. How can you use the features found in each chapter?
Human Anatomy & Physiology
Relative thickness of the myocardium in different chambers; the functional significance of those differences; a...
Anatomy & Physiology: The Unity of Form and Function
A student moving out of a dormitory crouches in correct fashion to lift a heavy box of books. What prime movers...
HUMAN ANATOMY
2. Define equilibrium population. Outline the conditions that must be met for a population to stay in genetic e...
Biology: Life on Earth (11th Edition)
Visit this site (http://openstaxcollege.org/l/heartvalve) to observe an echocardiogram of actual heart valves o...
Anatomy & Physiology
Some species of bacteria that live at the surface of sediment on the bottom of lakes are capable of using eithe...
Biology: Life on Earth with Physiology (11th Edition)
Knowledge Booster
Learn more about
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
- A 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_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_forwardWhen do neural discharges in the brain have their strongest effect? a. When the discharge rate of individual nerve cell is highest b. When individual nerve cells fire in regular way c. When the coherence of discharges in groups of nerve cells is greatest d. When many nerve cells have burst activityarrow_forward
- After the depolarisation phase of an action potential, the resting potential is restored by ______. Question 15 options: A) the opening of voltage-gated potassium channels and the closing or inactivation of sodium channels. B) the opening of more voltage-gated sodium channels. C) a decrease in the membrane's permeability to potassium and chloride ions following closing of the chloride-potassium pump. D) a brief inhibition of the sodium-potassium pump.arrow_forwardshortly answer a,b and c following questions are related to action potentials in axons: a. What is happening to Na + ions and K+ ions during depolarization? b.Why do the Na= and K+ ions behave that way during depolarization? c.What has to happen in order for axons to get back into resting conditions?arrow_forwardWhat membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of the membrane during the rising phase of the nerve impulse? a. the sodium-potassium pump b. the voltage gated potassium channel c. the voltage gated sodium channel d. the stimulus gated sodium channel e. the ligand gated ion channelarrow_forward
- Predict what might happen if a disease caused the axons that transmit proprioceptive stimuli to lose their myelin sheaths?arrow_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_forwardDraw an arrow showing the direction that an impulse travels along a neuronarrow_forward
- Which of these was NOT a theory of a nerve function near the end of the 17th century? A. nerve signal through secreted droplets of fluid B. Nerve signal by actual movement of cells from different body areas C. Spirits running through hollow nerves D. Nerves signal through vibrationsarrow_forwardWhich bulb shaped structures found at the end of neurons form connections with the dendrites and somas of other neurons and allow information to pass from one neuron to another? A. Myelin sheaths B. Ion channels C. Axon terminals D. Dendrite arcsarrow_forwarda) How does E allow faster transmission of signals? b) What would happen if G has a lack of Calcium? c) Most neurons have the style of junction (chemical) shown in the diagram, rather than gap (electrical) junctions. Why does this make sense?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
The Sensorimotor System and Human Reflexes; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M0PEXquyhA4;License: Standard youtube license