At which point in the graph do voltage-gated potassium channels open? (Base your answer to this question on the graph below depicting an action potential.) A B C D E

Q: a cell with the following ion concentrations had a resting membrane potential of -40mV which of the…

A: Cell membrane is selectively permeable to some specific ions.

Q: The Structure of the acetylcholine receptor is shown below:   C. What type of channel is the…

A: Introduction The acetylcholine receptor is an integral membrane protein receptor that is activated…

Q: Patch clamping is a technique to record the electrical potential or to measure currents generated by…

A: Tetrodotoxin is an extremely robust poison (toxin) discovered in particular within the liver and sex…

Q: Why do voltage-gated sodium channels have three states (open, closed, refractory/open-block)? Select…

A: The refractory period is the time during which a second action potential cannot be initiated &…

Q: Dr. Brainy decides to make a new cell that ONLY has one ion channel in its membrane. This channel is…

A: Based on the conditions, let's evaluate the potential outcomes: Membrane potential approaching 0 mV:…

Q: The resting membrane potential of a neuron typically is  70 mV. What does this mean?

A: The nervous system is involved in the coordination and controlling of various activities in the…

Q: a) Explain in detail what is occurring at stage A in the graph. (Be specific in terms of what's…

A:

Q: Explain two possible reasons for neuron 2 not firing.

A: An action potential happens when the voltage or membrane potential of the cellular membrane, rapidly…

Q: You are recording the resting membrane potential from a neuron placed in a petri dish. The following…

A: The correct answer to this question is option C i.e. increase concentration of K+.

Q: What do you think would happen to the neuronal action potential if the concentration of sodium ions…

A: An action potential has many different stages; hypopolarization, depolarization, overshoot,…

Q: Consider the following graph of an action potential: 60- 30- membrane potential (mV) O -30- -60 line…

A: Action potential refers to the sudden rise and fall of membrane potential across a cellular membrane…

Q: Let’s say the synapses of a neuron’s dendrites are filled with glutamate-gated channels which, when…

A: EPSP refers to the excitatory postsynaptic potential which is generated as a result of the…

Q: Define the term voltage-gated ion channels?

A: Ion channels are specialized membrane proteins that allow the passage of ions through the pores…

Q: Answer the following questions in regards to voltage-gated channels in the neuron: a. What is the…

A: The neurons are the functional units of the nervous system that helps in sensory and motor…

Q: What determines the activity of the voltage-gated Na1 channel?

A: Cell membrane channels are transmembrane channels. These channels are present in the bilayer of the…

Q: Voltage-gated Na+ channels are.... (select all that apply).  Group of answer choices: A. Opened by…

A: The channels are basically membrane proteins that act as transport protein through which various…

Q: The action potential is a voltage pulse at one location on a cell membrane. How does it get…

A: Neurons are the basic structural and functional unit of the nervous system. Neurons have three…

Q: Sodium, chloride, and potassium ions are involved in setting up voltages across neuronal membranes.…

A: The voltage difference between an intracellular space and the extracellular space is known as a…

Q: Which of the following describes the movement of the correct ion in the falling phase of the action…

A:

Q: This graph shows the relative voltage of a neuron's cytoplasm near the plasma membrane relative to…

A: * There are three stages in membrane potential  Depolarization  Repolarization Hyperpolarisation…

Q: Choose the correct answer: A) When the voltage gated K+ channels open K+ moves down its…

A: Let us discuss each option separately to figure out the correct option out of all. Whenever voltage…

Q: Why does neuronal function require the voltage-gated K+ channels to open more slowly than the…

A: Voltage-gated channels are specialized proteins that are essential for the generation and…

Q: What happens to Na+ when a neuron is stimulated on its dendrite? Why does the movement of Na+ raise…

A: When different ions cross the neuron membrane action potentials is  induced. A stimulus first…

Q: gradient is responsible for both the resting membrane potential and the action potential in the…

A: resting  neuron has a certai. voltage across its membrane called the resting membrane potential.

Q: Why are voltage-gated channels important?

A: Facilitated diffusion is a passive transport of ions, which means this process does not need energy…

Q: Graph an action potential, showing the change inelectrical potential on the y-axis and time on the…

A: Neurons communicate with each other and with the controlled organs by passing an electric current…

Q: What kind of graded potential describes a change in membrane potential from  70 to  60 mV? From  70…

A: The membrane potential is the difference between the two electric potentials the interior and the…

Q: Local anesthetic is often used in dentistry to lessen the sensation of pain during dental…

A: When membrane is in resting condition, it is only permeable to potassium ions and nearly impermeable…

Q: What happens to the membrane potential inside and outside of the cell when K+ channels are open?

A: Potassium Channels are actually membrane proteins that allows  K+ ions to come in across the cell…

Q: What letter(s) represent the starting point of an action potential?

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: The Structure of the acetylcholine receptor is shown below:   D. Briefly indicate what the role of…

A: Acetylcholine is a neurotransmitter at various synapses, nerves, and at the motor endplate of…

Q: You generate action potentials in a neuron bathed in solution in a petri dish by applying a…

A: An action potential is a rapid sequence of changes in the voltage across a membrane. This action…

Q: What is the role of maximal potassium conductance in the generation and propagation of action…

A: An action potential is an electrical signal that travels along the membrane of a neuron. It is…

Q: +50 CD Membrane Potential (mV) -50- A -100 E Time -> O A OB

A: The communication of neurons with each other take place with the help of brief electrical signals…

Q: The figure below may help in answering some of the questions. 1. What ions are flowing (and in which…

A: The neurons are the cells of nervous system that is responsible for generation and transmission of…

Q: After an action potential has been initiated, there are two processes that prevent the membrane from…

A: The generation of action potential is very much important characteristics in nerve cells that is…

Q: Membrane Potential (mV) -70 + 1 3 Time (ms) 1 Na* continues to rush into the cell E Excess…

A: The Na +K + pump is found in cell membrane of neurons as well as in other animal cells. It helps in…

Q: IN neurology, is postsynaptic potential mediated by chloride conductance when Vr ( -80mV) and Ecl =…

A: Synapse is the area of the junction between the two Nerve cells in which the first nerve cell from…

Q: Jose measures membrane potential in two neighboring cells. He notices that when the membrane…

A: Membrane potential It refers to the difference in electric potential between the interior and the…

Q: A person is given a drug that blocks the voltage-gated sodium ion channels in the plasma membrane of…

A: The Acetylcholine is one of the most vital neurotransmitter in the human body, that is seen in both…

Q: Each of the following is a correct relationship between action potential phase and channel status…

A: BASIC INFORMATION NEURON   It is the longest cell inside the human body  It is found in the brain…

Q: describe what the resting membrane potential of a cell is. What is the resting membrane potential of…

A: Resting membrane potential occurs because of changes in permeability of membrane for…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.