Answered: You find a neuron whose resting…

Science

Biology

You find a neuron whose resting potential is -90mV. Which of the following are likely to be true?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 4TAHL

See similar textbooks

Related questions

Q: A neuron with a resting membrane potential of -75 mV receives multiple inputs giving rise to the…

A: The action potential is a condition of a nerve impulse or electrical activity when there is a…

Q: The sodium-potassium pump maintains membrane potential by pumping ions against their concentration…

A: The sodium potassium pump, also known as the Na+/K+ pump or Na+/K+ ATPase, is a protein pump found…

Q: The above depolarization of a neuron will result in which of the following ionic currents? a…

A: Action potential or an electrical impulse is another name for a nerve impulse. In contrast to a…

Q: Choose the item in column 2 that best matches each item in column 1…

A: The nervous system of our body is concerned with the functions of sensory reception, processing, and…

Q: What effect could the venom have on a voltage-gated potassium channel to produce this result

A: Scorpion is venomous reptile which is found all around the globe with different species but black…

Q: Which of the following combinations of spatial summation of postsynaptic potentials (PSP) would…

A: The graded potential achieved by dendrites of a neuron while receiving synapses from other cells is…

Q: The change in the electrical balance between the intra- and extra-cellular fluid that occurs when a…

A: The messages sent by neurons are in the form of electrochemical signals, indicating that these…

Q: There are several neurons forming synapses on a single post-synaptic neuron that has a resting…

A: Resting membrane potential is the potential difference across the membrane of a neuron, i.e., the…

Q: The changes in membrane potential when a neuron is transmitting information is called .....…

Q: Which one of these is an example of an excitatory postynaptic potential in a typical neuron? a) A…

A: Introduction EPSPs Are Connected With A Transmitter-induced Increase In The Synaptic Membrane's Na+…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Ans: Chloride (Cl- )

Q: Suppose you placed an isolated neuron in a solution similar toextracellular fluid and later…

A: A neuron's resting membrane potential is around -70 mV (mV = millivolt)thismeans the neuron's inside…

Q: f the absolute refractory period of a neuron is 0.7 milliseconds, what is the maximum frequency of…

A: The trick used by the nervous system is that the intensity of the stimulus is encoded into the…

Q: Which of these is least likely to trigger an action potential in a post-synaptic cell? A)EPSPs and…

Q: Make an illustration that discusses the Polarized state (mV inside the neuron, ions present/abundant…

A: Neuron like any other cell is surrounded by a plasma membrane which is Semi permeable that is it…

Q: The above depolarization of a neuron will result in which of the following ionic currents? a…

A: Electrical signals regulate the contraction of muscle, secretion of hormones, sensation of the…

Q: ou observe that a neuron treated with a metabolic inhibitor which prevents ATP generation still can…

A: Neurons are the basic unit of the nervous system. The lipid bilayer is selectively permeable and is…

Q: more channels may lead to an even larger depolarization, up to a point. Then the depolarization…

A: Normally the Nerve cell remains in resting stage untill it gets stimulus .Nerve cell regulates…

Q: An action potential at a given stretch of a neuron's axon does not re-stimulate the neighboring…

A: Action potential It is defined as the rapid rise and subsequent fall in membrane potential across a…

Q: Saltatory conduction is a term applied to the "jumping" movement of action potentials Multiple…

A: Saltatory conduction is the movement of the action potentials along the myelinated axons from one…

Q: Which ion concentration relationship is true when a neuron is at rest? (Select all that apply) More…

A: When a neuron is not sending a signal it is at 'rest'. During the rest state, all the voltage-gated…

Q: Consider the neuron below, which has a membrane resting potential of -70mV, membrane space constant…

Q: During an action potential _______ A. Na+ flows out of cell and causes depolarization B. K+…

A: A characteristic pattern of rapid rise and subsequent fall in voltage or membrane potential across a…

Q: At which point in the graph do voltage-gated potassium channels open? (Base your answer to this…

A: The action potential refers to the sudden changes in the resting membrane potential of the neuron…

Q: Neuron 1 fires an action potential, releasing neurotransmitters to neuron 2. However, neuron 2 does…

A: Neurones are the special cells in the nervous system that transmit the nerve impulses throughout the…

Q: What would happen to the resting membrane potential of a neuron if sodium (Na+ ) channels were…

A: Introduction:- Because Na + is normally present at a much higher concentration outside of a cell…

Q: You are recording from two neurons in order to characterize the synapse that connects them. When the…

A: Introduction Neuron/Nerve: A neuron is a single nerve cell which consists of central cell body,…

Q: You add an inhibitor to the voltage-gated K+ channel and then stimulated a nerve cell to cause an…

A: The nerve cells or neurons shows electrical properties that helps the neurons to conducting the…

Q: Use this illustration to place these events in the order they occur during synaptic communication:…

A: The above image shows the transmission of nerve impulses across a synapse. A synapse is a small…

Q: Use the figure below of neuronal communication to answer the following question. What major event of…

A: In the given figure we can see the neurons on the left is presynaptic neurons and one of the right…

Q: The membrane potential labeled (0) is due to which of the following (when compared to (3) potential.…

A: Resting membrane potential is about -90 MV which suggests that the negative charge within the cell…

Q: Which of the following is true about the conduction of action potentials?

A: Generation of Action potential occurs in the axon. The action potential is generated due to opening…

Q: Which of the following is NOT a true statement? Action potentials are generated only when a neuron…

A: There are few important points that should be kept in mind: Neurons possess electrical excitability…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Here membrane potential raises from -70mv to - 55mv. That means depolarization occurs. At…

Q: Which of the following would most likely occur if you experimentally depolarise the middle of an…

A: Neuron is a chief structure of nervous system which helps in transfer of impulse from one part to…

Q: Which of the following positively-charged ions is about 28 times more concentrated inside of the…

A: Every cell has an electric potential difference between inside and outside of the cell under the…

Q: A laboratory experiment is set up where you have two fully functional nerves properly aligned so…

A: When there is a rapid rise and then fall in the membrane potential or voltage across the membrane of…

Q: Action Refractory potential period 50 -50 10 -100 0 1 2 3 4 5 6 7 Time (milliseconds) Action…

A: Neurons are cells in the body that are capable of being excited. The distribution of different ions…

Q: What part of the membrane composition of a neuron is most important for the permeability of the…

A: b: There are proteins embedded in the membrane

Q: ing of potassium (K+) channels on dendrites of a postsynaptic neuron will have what effect? A)…

A: Opening and closing of ion channels on the membrane leads to the Hyperpolarisation and…

Q: Which of the following statements about hyperpolarization are correct? Pick all that apply to what…

A: Hyperpolarisation is an event that occurs in neurons during the action potential.

Q: We know the action potential threshold regulates whether a neuron fires an action potential or not.…

A: Action potential refers to the rapid increase followed by decrease in the voltage or membrane…

Q: The level of depolarization at which an action potential will be triggered is referred to as the…

A: Action potential develops only when the membrane acquires a more positive charge inside.

Q: What happens to the simulated neuron (on Metaneuron) when a stimulus depolarises the neuron by 4 to…

A: Neurons They are the functional unit of brain and nervous system.

Q: The following graph shows that if a neuron is depolarized briefly and then hyperpolarized slightly,…

A: In nerve cells, Na+ is important for generation of the action potential. As the Na+ current is…

Q: Indicate the specific events that are occurring at 1,2,3 and 4. B. At which area of the graph are…

A: Action potentials are nerve messages. Neurons produce and convey these signals through their…

Question

You find a neuron whose resting potential is -90mV. Which of the following are likely to be true? (select all that apply)

Voltage-gated sodium channels are closed

The neuron is fully permeable to sodium

The neuron is permeable to potassium

The neuron is hyperpolarized

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

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

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.
Figure 35.11 Potassium channel blockers, such as amiodarone and procainamide, which are used to treat abnormal electrical activity in the heart, called cardiac dysrhythmia, impede the movement of K+ through voltage-gated K+ channels. Which part of the action potential would you expect potassium channels to affect?
Conformational changes in channel proteins brought about by voltage changes are responsible for opening and closing Na+ and K+ gates during the generation of an action potential. (True or false?)
Assume presynaptic excitatory neuron A terminates on a postsynaptic cell near the axon hillock and presynaptic excitatory neuron B terminates on the same postsynaptic cell on a dendrite located on the side of the cell body opposite the axon hillock. Explain why rapid firing of presynaptic neuron A could bring the postsynaptic neuron to threshold through temporal summation, thus initiating an action potential, whereas firing of presynaptic neuron B at the same frequency and the same magnitude of EPSPs may not bring the postsynaptic neuron to threshold.
Which of the following voltages would most likely be measured during the relative refractory period? +30 mV 0 mV -45 mV -80 mv
A(n)______neuron has one axon and one____ dendrite extending directly from the cell body. unipolar bipolar multipolar pseudounipolar
Can you explain to me why choice E is the correct answer and break down why the other options are false?Select the choice option that is TRUE regarding the absolute and relative refractory periods of the action potential (AP). A. The absolute refractory period occurs when the activation gate of voltage gated sodium channel closes at the peak of the AP B. The relative refractory period occurs when the inactivation gate of voltage gated sodium channels closes at the peak of the AP C. The relative refractory period occurs when the activation gate of voltage gated potassium channels opens at the peak of the AP D. The absolute refractory period may be overcome if enough excitatory stimulation is applied to the neuronal membrane E. All of the choice options are FALSE regarding the absolute and relative refractory periods of the AP
What events in a neuron membrane occur slowly when threshold potential is reached? Opening of K+ channel activation gate Closing of Na+ channel inactivation gate Opening of the Na+ voltage-gated channel activation gate Closing of Cl- voltage gated channels Closing of K+ inactivation gate (More than one answer may be correct, please help in answering)
The membrane potential labeled (0) is due to which of the following (when compared to (3) potential. (A) voltage-gated Na+ channels (B) voltage-gated K+ channels (C) voltage-gated slow Ca++ channels (D) voltage-gated fast Ca++ channels (E) voltage-gated transient Ca++ channels (F) funny channels
Suppose you placed an isolated neuron in a solution similar toextracellular fluid and later transferred the neuron to a solution lackingany sodium ions. What change would you expect in the resting potential?
What happens when a resting neuron’s membranedepolarizes?(A) There is a net diffusion of Na+out of the cell.(B) The equilibrium potential for K+(EK) becomesmore positive.(C) The neuron’s membrane voltage becomesmore positive.(D) The cell’s inside is more negative than the outside
Which of the following occurs first when voltage reaches the threshold level in a neuron plasma membrane? (a) voltageactivated Na1 channels open (b) K1 channels open (c) the membrane hyperpolarizes (d) neurotransmitter is released (e) K1 channels close