What will happen when ligand gated sodium channels open on a neuron? What will enter/exit the cell? Will it help the cell to depolarize or hyperpolarize? Will it lead to EPSP or IPSP?

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: Why do voltage-gated sodium channels have three states (open, closed, refractory/open-block)? Select…

A: The refractory period is the time during which a second action potential cannot be initiated &…

Q: Read the following statements (a) The resting nerve membrane is freely permeable to Na*, K* ions and…

A: B and C

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: What do you think would happen to the neuronal action potential if the concentration of sodium ions…

A: An action potential has many different stages; hypopolarization, depolarization, overshoot,…

Q: You are examining a postsynaptic neuron that has a resting membrane potential of -70 mV and a…

A: Membrane potential develops when there is difference in charge between the intracellular and…

Q: hen a neuron opens voltage-gated Na+ channels, what happens to the membrane potential?

A: Introduction: Voltage-gated Na+ channels initiate and propagate action potentials in neurons and…

Q: What does summation mean when we talk of postsynaptic potentials? When is summation non-linear?

A: Introduction  Postsynaptic potentials are those that usually occur as a result of alterations near…

Q: Why does neuronal function require the voltage-gated K+ channels to open more slowly than the…

A: Voltage-gated channels are specialized proteins that are essential for the generation and…

Q: Why are voltage-gated channels important?

A: Facilitated diffusion is a passive transport of ions, which means this process does not need energy…

Q: Which of the following can an EPSP give rise to? Group of answer options Local hyperpolarization…

A: The nervous system of a human being is a complex system that helps to coordinate behavior and…

Q: If an excitatory neurotransmitter binds to the post-synaptic neuron, what type of an event will that…

A:

Q: What role do the Na+/K+ pumps play in establishing the resting membrane potential?

A: Ans: Na+/K+ pumps: The Na+/K+ pump or ATPase is the electrogenic transmembrane enzymes which is…

Q: Make an illustration that discusses the Polarized state (mV inside the neuron, ions present/abundant…

A: Neuron like any other cell is surrounded by a plasma membrane which is Semi permeable that is it…

Q: When a neurotransmitter binds with receptors at the membrane, it may cause sodium channels to open.…

A: The endogenous chemicals which makes neurons to communicate with each other throughout the body are…

Q: If extracellular [Na1] is elevated, how would the resting potential and action potential of a neuron…

A: The nervous framework is a profoundly intricate piece of a creature that facilitates its actions and…

Q: After an action potential has been initiated, there are two processes that prevent the membrane from…

A: The generation of action potential is very much important characteristics in nerve cells that is…

Q: If sodium and potassium ions are both positively charged, what causes the negative membrane…

A: Resting membrane potential is defined as the difference in the electric potential across the plasma…

Q: What do voltage-gated ion channels give?

A: Introduction: Proteins play different roles in the living body. These large biomolecules are vital…

Q: What effect would you expect an antagonist that targets the voltage sensing domain of perisynaptic…

A: Introduction  A neuron is a specialized cell that is the fundamental unit of the nervous system. It…

Q: Neurons, particularly those in the brain, receive multiple excitatory and inhibitory signals. What…

A: Neurons are the basic functional unit. It is a specialized cell that is designed to transfer…

Q: The force of contraction of the stomach wall is strongest in the --_ region. fundic duodenal body O…

A: Digestive system consists of organs like mouth, esophagus, stomach, small intestine, and  large…

Q: List three ways in which action potentials can be initiated in neurons?

A: Neurons are a type of cell that is solely responsible for the transmission of information across the…

Q: What is responsible for action potentials propagating in one direction? The inactivation of voltage…

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: What is the effect of Cl-Cl¯-channel opening on the excitability of a neuron?

A: Membrane potential occurs due to the ion movement in one direction. The changes in membrane…

Q: What is the resting membrane potential? How does electrical activity change during an action…

A: Neurons are the fundamental units of the nervous system. A neuron is made up of three important…

Q: What happens if a potassium channel opened before sodium channels during the action potential…

A: Rapid change in the membrane voltage across the cell membrane is called as action potential. This…

Q: What is the importance of the sodium-potassium pump in neuron function? What do you think would be…

A: An action potential is an important property of several electrically excitable cells that results in…

Q: Which component of the neuron sends action potentials away from the cell body?

A: A neuron is a building block of the nervous system. There are millions of neurons present in our…

Q: Epilepsy is a condition which results in seizures stemming from excessive or abnormal activity of…

A: A brief electrical signal that travels along the membrane of a neuron is known as an action…

Q: Why does an action potential move in an all-or-nothing fashion down the length of an axon without…

A: Henry Pickering Bowditch first discussed the all or none law in 1871 in heart muscle. It means that…

Q: If: membrane potential=-70mV, ENa=+60mV, and Ek=-90mV, consider which directions + Na and K+ will…

A: Membrane potential refers to the difference in electric potential between the interior and exterior…

Q: What kinds of changes in ion conductance may be expected in an action potential? And how do ion…

A: An action potential takes place if the membrane potential of a particular cell location rises and…

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: Depolarization of a neuron plasma membrane will shift the membrane potential toward (a) 0 mV. (b)…

A: The resting potential of neurons is -70 millivolts meaning that the cell’s interior is comparatively…

Q: What happens when the activation gates in the voltagegated Na+ channels open and the inactivation…

A: Ion channels are pore-forming protein complexes that facilitate the diffusion of ions across the…

Q: the potassium leak channels were suddenly blocked in a resting neuron, what would happen to its…

A: Normally the neuron has  - 70millivolt resting membrane potential that means the interior of neuron…

Q: what are Axons coated with this electrically insulating substance have higher conduction velocities…

A: The basic building blocks of the brain and nervous system are neurons, commonly known as neurones or…