The duration of AP of a nervous fiber takes 1ms, the threshold of depolarization is 20mV. Will the second AP appear under the ndition that the second irritation with the electric current force of 40mV is put in 0,5ms after the first one, and why? Explain

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A: B and C

Q: Calculate the free energy of transport for the movement of potassium by the sodium/potassium pump…

A: The Sodium/Potassium pump is a transmembrane ATPase that is situated on the cytosolic side, in the…

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A:

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

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A: An action potential (AP) occurs when the membrane potential of a particular cell position rises…

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

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Q: Action potential +40 -55 Threshold Falled initiations Resting state -70 Stimulus 1 Refractory period…

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Q: Which of the following voltages would most likely bemeasured during the relative refractory…

A: A refractory period is one of the stages of the action potential in a cell. When an action potential…

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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: What makes an action potential rise to +35 mV? What makes it drop again after this peak?

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Q: During depolarization, the membrane potential becomes more positive. O True O False

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Q: Given that tissue A has significantly more K+ leak ion channels thantissue B, which tissue has the…

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

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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…

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Q: Immediately after an action potential is .34 propagated, which one of the following ions :rapidly…

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Q: +30 0 -55- -70- -80- B A 2 3 Time (ms) G 2. A. What type of summation is shown for the graded…

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Q: What will happen if threshold value for the generation of action potential is not reached?

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Q: Temporal summation occurs when local potentials overlap in time.   a TRUE   b FALSE

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A: The absolute refractory period is the time following an action potential during which no additional…

Q: Calculate the driving force for Na+, K+, and Ca2+ current in a neuron under physiological…

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A:

Q: Describe the action potential in terms of the different functional states of the voltage- gated Na+…

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Q: Assuming a typical EPSP of 0.5mV, approximately how many simultaneous EPSP's would be required to…

A: Ans..As we know that the resting membrane potential of nerve is -70mV and  thre   shold potential of…

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A: Nerve impulse refers to an electrical or chemical signal that is transmitted along a nerve fibre.…

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

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Q: Name and describe the roles of key molecules and membrane structures in maintaining axon membrane…

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