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The………. difference across the resting membrane is called as Resting potential.
- a)Electrochemical potential
- b)Electrical potential
- c)Chemical
- d)Chemiosmotic
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The………. difference across the resting membrane is...
Understanding Resting Potential
The resting potential refers to the electrical charge difference across the neuronal membrane when a neuron is not actively firing an action potential. This potential is crucial for the transmission of signals in the nervous system.
Key Concepts of Resting Potential
- Electrochemical Gradient:
- The difference in concentration of ions (like Na+ and K+) across the membrane creates an electrochemical gradient.
- This gradient is essential for maintaining the resting potential.
- Electrical Potential:
- The term "electrical potential" specifically refers to the voltage difference across a membrane.
- In a resting neuron, this electrical potential typically ranges from -70 to -90 mV.
- Importance of Ions:
- Potassium ions (K+) are more concentrated inside the cell, while sodium ions (Na+) are more concentrated outside.
- The selective permeability of the membrane to K+ contributes significantly to the resting potential.
- Membrane Channels:
- Ion channels, particularly potassium channels, allow K+ to exit the cell more freely, leading to a negative charge inside the cell compared to the outside.
Conclusion
The correct answer is "B) Electrical potential" as it directly describes the voltage difference across the neuronal membrane during the resting state. Understanding this concept is pivotal for grasping how neurons communicate and respond to stimuli, forming the basis for further studies in neurobiology and physiology.
The resting potential refers to the electrical charge difference across the neuronal membrane when a neuron is not actively firing an action potential. This potential is crucial for the transmission of signals in the nervous system.
Key Concepts of Resting Potential
- Electrochemical Gradient:
- The difference in concentration of ions (like Na+ and K+) across the membrane creates an electrochemical gradient.
- This gradient is essential for maintaining the resting potential.
- Electrical Potential:
- The term "electrical potential" specifically refers to the voltage difference across a membrane.
- In a resting neuron, this electrical potential typically ranges from -70 to -90 mV.
- Importance of Ions:
- Potassium ions (K+) are more concentrated inside the cell, while sodium ions (Na+) are more concentrated outside.
- The selective permeability of the membrane to K+ contributes significantly to the resting potential.
- Membrane Channels:
- Ion channels, particularly potassium channels, allow K+ to exit the cell more freely, leading to a negative charge inside the cell compared to the outside.
Conclusion
The correct answer is "B) Electrical potential" as it directly describes the voltage difference across the neuronal membrane during the resting state. Understanding this concept is pivotal for grasping how neurons communicate and respond to stimuli, forming the basis for further studies in neurobiology and physiology.
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Community Answer
The………. difference across the resting membrane is...
The electrical potential difference across the resting plasma membrane is called as the resting potential.
Topic in NCERT: NEURAL CONTROL AND COORDINATIONLine in NCERT: "The electrical potential difference across the resting plasma membrane is called as the resting potential."
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