Whether the “Influx of Na + ions inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP). Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

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Answer 1

Question

Chapter 41, Problem 9TYU

(a)

Summary Introduction

To determine: Whether the “Influx of Na+ ions inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(b)

Summary Introduction

To determine: Whether the “K+ diffusion towards outside of membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(c)

Summary Introduction

To determine: Whether the “Cl- influx inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane

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Read the following statements (a) The resting nerve membrane is freely permeable to Na*, K* ions and negatively charged proteins. (b) The activity of Na* - K* pump is responsible for maintaining resting membrane potential. (c) The resting membrane is impermeable to negatively charged proteins present in the axoplasm. Choose the option representing correct statements. b only a and b b and c a, b and c

Please explain what is going on in the picture below.

Figure 1 shows the action potential graph recorded from a rat neurone and the potential changes obtained from the rat neurone when the concentration of potassium ([K*]out) and calcium ([Ca²+]out) are varied extracellularly in the bathing solution. (i) In the resting state, is the neuronal permeability to potassium more than, less than or equal to that of the permeability to calcium? Explain your answer. (ii) Vm 'The calcium ion concentrations are lower inside the cell than outside.' Justify this statement based on the graphs and the Nernst equation assuming the temperature is at 25 °C. Vm 30 0 -30 30 0- -30 0 50 AP overshoot [K+ lout 100 150 time (msec) 30 RP Figure 1 0- -30 AP overshoot RP 200 250 AP overshoot {Ca²+ Jout RP

Answer 2

Question

Chapter 41, Problem 9TYU

(a)

Summary Introduction

To determine: Whether the “Influx of Na+ ions inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(b)

Summary Introduction

To determine: Whether the “K+ diffusion towards outside of membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(c)

Summary Introduction

To determine: Whether the “Cl- influx inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane

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Answer 3

Question

Chapter 41, Problem 9TYU

(a)

Summary Introduction

To determine: Whether the “Influx of Na+ ions inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(b)

Summary Introduction

To determine: Whether the “K+ diffusion towards outside of membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(c)

Summary Introduction

To determine: Whether the “Cl- influx inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane

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Answer 4

Question

Chapter 41, Problem 9TYU

(a)

Summary Introduction

To determine: Whether the “Influx of Na+ ions inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(b)

Summary Introduction

To determine: Whether the “K+ diffusion towards outside of membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(c)

Summary Introduction

To determine: Whether the “Cl- influx inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane

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Answer 5

Chapter 41, Problem 9TYU

(a)

Summary Introduction

To determine: Whether the “Influx of Na+ ions inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(b)

Summary Introduction

To determine: Whether the “K+ diffusion towards outside of membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

(c)

Summary Introduction

To determine: Whether the “Cl- influx inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane

Answer 6

Chapter 41, Problem 9TYU

(a)

Summary Introduction

To determine: Whether the “Influx of Na+ ions inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

Answer 7

Chapter 41, Problem 9TYU

(a)

Summary Introduction

To determine: Whether the “Influx of Na+ ions inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

Answer 8

(b)

Summary Introduction

To determine: Whether the “K+ diffusion towards outside of membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

Answer 9

(b)

Summary Introduction

To determine: Whether the “K+ diffusion towards outside of membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane.

Answer 10

(c)

Summary Introduction

To determine: Whether the “Cl- influx inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane

Answer 11

(c)

Summary Introduction

To determine: Whether the “Cl- influx inside the membrane of post synaptic neuron” will cause excitatory postsynaptic potential (EPSP) or inhibitory postsynaptic potential (IPSP).

Introduction: Signal transduction in neurons depends upon the resting potential of the membrane of the neuron. Signals are sent by a wave of depolarization. This wave of polarization develops only when depolarization potential is more than the threshold potential. This potential is termed as action potential of the membrane

Answer 12

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Answer 14

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Answer 15

Ch. 41.1 - Describe the processes involved in neural...Ch. 41.1 - Prob. 1C Ch. 41.1 - Prob. 2C Ch. 41.2 - Draw and label a typical neuron and give the...Ch. 41.2 - Prob. 3LO Ch. 41.2 - Prob. 1C Ch. 41.2 - Prob. 2C Ch. 41.2 - Prob. 3C Ch. 41.3 - Prob. 4LO Ch. 41.3 - Prob. 5LO

Solution Summary: The author explains that signal transduction in neurons depends upon the resting potential of the neuron's membrane.

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