How do both negative and positive feedback contributeto the changes in membrane potential during an actionpotential?

Q: Discuss the mechanism of action-potential in neurons?

A: Introduction: All excitable tissue like nerve and muscle tissue have membrane potential. The…

Q: What is Action Potential Mechanism?

A: Biochemistry is a branch of science that deals with the study of chemical processes related to the…

Q: What is an end-plate potential, and what ions produce it?

A: Endplate potentials (EPPs) are the voltages potential created at neuromuscular junctions that causes…

Q: Describe the five phases of potential action?

A: Answer: Introduction: The production and transmission of action potentials shows a communication in…

Q: What is action potential?

A: Action potential is the short term change in the electric potential on the cell’s surface in…

Q: Discuss the Nature and Magnitude of the Resting Membrane Potential?

A: Resting Membrane Potential is generated by the movement of ions across the membranes and ions an be…

Q: What factors promote change in Vm (membrane potential) during an action potential?

A: The neurons have the capability of producing and transmitting nerve impulses. They actually changed…

Q: Explain the Nature and Magnitude of the Resting Membrane Potential?

A: Neurons are the important brain cells that generate electric signals by the changes in the cell…

Q: How does the Action Potential Propagation occur?

A: The impulse generated at the axon hillock propagates as a wave on the axon.

Q: What functions are different between chemically-gated and voltage-gated?

A: Protein-controlled Gated Channels that in response to different signals, may change shape to open or…

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: Describe how ion movement generates the action potential.

A: Action potentials can be defined as the nerve signals which are characterized by the sudden, fast,…

Q: What happens to cause depolarization andhyperpolarization? How do alterations in the K+concentration…

A: The cell remains in a resting state until the stimulus triggers. Due to the action potential, the…

Q: Describe the voltage-gated ion channels that are essential for the development of the action…

A: IONIC BASES OF EACH PHASE OF ACTION POTENTIAL : the depolarization and repolarization phase of the…

Q: What takes place during the repolarization and hyperpolarization phases of an action potential?

A: The action potential can be defined as the frequent, fast, transitory, and change of the resting…

Q: What happens to the membrane potential when a nerve cell is stimulated?

A: The human nervous system consists of billions of nerve cells and supporting cells, neuroglial cells.…

Q: Which of the following would occur if you were measuring the voltage of a motor neuron that was…

A: They are regulated by inhibitory neurotransmitters such as glutamate and GABA. They prevent an…

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 causes depolarization of a neuron membrane potential

A: Neurons are the cells of the  nervous system . They are excitable cells and can conduct electrical…

Q: What are the ionic basis of action potential?

A: Introduction: An action potential is explained as an electrical signal that travels along the…

Q: Match each type of membrane potential to its definition: The membrane potential at which voltage…

A: Introduction: Animal nervous systems are made up of numerous neurons that innervate muscle cells and…

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.