The potential difference that must be met in order for an action potential to be generated When the potential drops below resting level When the potential starts to decrease again after it has reached a maximum Occurs at -77 mV When the membrane is resetting and an action potential cannot yet be produced again When the sodium channels are open Occurs at -55 mV

Q: c) Draw a diagram indicating how the ion concentrations will change during the repolarization phase…

A: All cells generate an electrical potential known as membrane potential across the plasma membrane.…

Q: Propagation of action potential and transmission mean:   current flow along the cell membrane…

A: Introduction: The action potential is the name given to the brief series of events that occur in the…

Q: Which refers to the time during which a neuron can undergo an action potential? O the resting…

A: Nervous system is one of the most important system of our body it send and receive information via a…

Q: +30 mV Threshold Potential Resting Potential Time Question: In the abnormal action potential (bottom…

A: Action potential  The excitation of neurones by the action of stimulus generates action potential.…

Q: You are recording the electrical activity of a cell body with a resting membrane potential of -70…

A: Given; Resting membrane potential of the cell= -70mV No. of stimuli detected by the cell= 3 from…

Q: A 100-um diameter nerve axon has the following properties: rm = 2.5 x 104 ohm x cm, ri = 1 x 105…

A: The resting Vm is the membrane potential when no current is flowing through the axon. It is the…

Q: Which of the following occurs immediately after the peak of an action potential? The membrane…

A: Change in electrical potential related with the impulse entry along the membrane of a muscle cell or…

Q: For a nerve fibre axoplasmic and extracellular ion concentrations were found to be respectively:…

A: An equilibrium environment should be maintained both inside and outside the cell to function…

Q: Reorder the items below to correctly label each number in the diagram. 3 4 Membrane Potential (mV)…

A: Plasma membranes are peppered with a variety of ion channels made up of membrane proteins. Some of…

Q: LA. Action potential +40 Falled Threshold -55 initiations Resting state -70 Stimulus t Refractory…

A: Generation of nerve impulse in nerve fibre depends on distribution of sodium and potassium in and…

Q: toxin creates pores that are permeable to Ca2+. Describe its immediate effect on the resting…

A: Action potential the action potential is defined as the rapid rise and fall in the membrane…

Q: 3. Electrical Signal: The Action Potential In the figure to the left, name the 4 phases of the…

A: Action potential refers to a fast, propagating change in the resting membrane potential of a cell.…

Q: An action potential is shown below. Number 4 on the graph is showing which phase? 3 Membrane…

A: Action potential is a brief reversal of membrane potential where the membrane potential changes from…

Q: Discuss what happens to the action potential shape when the neuronal environment has sodium removed.…

A: Introduction  When the membrane potential of a particular cell site rapidly increases and decreases,…

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

A:

Q: Describe the changes in the neuron membrane that occur throughout the course of an action potential.…

A: The action potential is an explosion of electrical activity that is created by a depolarizing…

Q: atch the description with the statement that best describes the following statements…

A: When a cell is not stimulated, its resting membrane potential is defined as the electrical potential…

Q: of the stages of an action potential, including a description of and explanation for the refractory…

A: The normal resting membrane potential is about -70 mv. The electric signals produced by the neuronal…

Q: Indicate which gate is responsible for halting the rising phase of the action potential.  1- Na+…

A: Action potentials are the electrical impulses that are responsible for transmitting information…

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: A patient is given a drug that blocks the L-Type calcium channel blocker. Which phase of the action…

A: Signal transduction pathways translate signals received at the cell's surface into cellular…

Q: Match the stages of action potential with the appropriate image or description.   PICK AND MATCH…

A: Action potential is defined as the rapid depolarization and repolarization of the membrane…

Q: Describe the events that occur during action potential  ANSWER SHOULD INCLUDE: Explanation of how…

A: Action potential is defined as the sudden, fast, propagating change of resting membrane potential…

Q: Compare graded and action potentials are similar and different.

A: The nervous system establishes its function by the means of neurons or nerve cells that aid in the…

Q: In an experiment, the extracellular [Na+] surrounding a nerve cell was reduced from 145 to 45 mM.…

A: In the presence and absence of an impulse, the nerve cells exist in two states known as action…

Q: Current pulse to presynaptic cell Voltage recorded in presynaptic cell Voltage recorded in…

A: A rapid, quick, reversible, and spreading shift in the potential of the resting membrane is referred…

Q: a. If one increased the extracellular concentration of K+ around a neuron, what would happen to the…

A: Resting membrane potential is negative because the negative charge is present inside the cell which…

Q: Describe the resting potential for neurons. How is this potential established? Describe the…

A: A neuron or a nerve cell is the structural and functional unit of the nervous system. They are…

Q: is to say, the excitatory pathways become over ive, or the inhibitory pathways, esigned to temper…

A: Normally neuron has a resting membrane potential of about -70 millivolt. When an action potential…

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.