60. The action potential of a normal axon is shown on the graph. K* conductance is maximal at which of the following labeled locations? HA B D -90- 6 0 1 A) Membrane potential (mv) B) 2 3 4 Time (msec) C) D) E)

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: 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: 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: 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: neuron

A: An action potential is triggered by a graded potential that causes the membrane to depolarize until…

Q: What is the expected resting membrane potential (in mV) of a neuron that is typical in all ways…

A: The membrane potential is a term that signifies the distribution of opposite charges across the…

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: Identify the stages involved during the changes in membrane potential of the neuron represented in…

A: Nervous system is an important system which helps in maintaining the homeostasis of the human body.…

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: What is the point A on the graph? Define this term. B) What ions are moving at B on the graph, what…

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

Q: 3) You are investigating the ionic selectivity of an ion channel opened by activation of a specific…

A: A.                                   E(K+)= RTnFlnOUTIN=8.314×2981×96485ln5140=-0.089≈-89mV…

Q: 12) when K+ voltage-gated channels open, which of the following occurs? a) depolarization  b) both…

A: In that they repolarize activated neurons to their resting state, voltage-gated potassium channels…

Q: Explain the forces that produce the resting membrane potential?

A: The resting membrane potential The resting membrane potential is defined with respect to the cell…

Q: taw a graph representing the changes in membrane potential across the axonal membrane before,…

A:

Q: The action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the…

A: Action potential - It is defined as a sudden temporary shift of rising or falling in membrane…

Q: In SA nodal cells the upstroke of the action potential: A)is characterized by a substantial…

A: The sino atrial node is the pacemaker of the heart. The cells of the sea node have a particular…

Q: 1.A poison causes a drastic rise inE value with stimulation of the membrane.Thereafter membrane is…

A: Answers given in below step

Q: Which of the following events correctly ranks steps in an action potential? 1. Voltage-gated sodium…

A: Electrical signals are how neurons communicate. Electrical signals are generated when there is a…

Q: 13) Draw a graph representing the changes in membrane potential across the axonal membrane before,…

A: The electric signals that flow down the dendrites to form a nerve impulse or an action potential are…

Q: During extreme dehydration, plasma K* can increase to as high as 10 mM. (A) What would the membrane…

A: Introduction  When you use or lose more fluid than you consume, your body becomes dehydrated because…

Q: A True OUTSIDE CELL This cell is at rest. False INSIDE CELL E

A: Neurons have the capability of generating and transmitting nerve impulses. The transportation of…

Q: Place the following events in chronological order from 1-8: Nat enters the cell, and depolarization…

A: Neurons have the capability of generating and transmitting nerve impulses by transporting specific…

Q: Consider the following three diagrams of a nerve cell membrane. They show resting potential,…

A: Cells are in resting membrane potential due to the differential ion concentrations inside and…

Q: Explain the following; If a drug partly blocks a membrane’s potassium channels, how…

A: Potassium channels are most widely distributed ionic pores present in the living organisms. These…

Q: Refer to the graph showing the course of an action potential. Which of the numbered points along the…

A: As the membrane potential is increased, sodium ion channels open, allowing the entry of sodium ions…

Q: 4) A neuron with ionic gradients described in the table below receives a synaptic input that opens…

A: The formula to calculate sodium current is V = IR VOLATAGE POTENTIAL ( V) I - CURRENT R - RESISTANCE

Q: Nerve membrane hyperpolarization after an action potential a)Is the movement of membrane potential…

A: The neuron is the basic working unit of the brain, a specialized cell designed to transmit…

Q: Fill in the diagram, your illustration should demonstrate for each phase of the AP: 1. The relative…

A: Action potential (AP) occurs when membrane potential on a specific location of a cell rapidly rises…

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.