How are Depolarization and graded potential caused?

Q: How does hyperpolarisation decrease amplitude of an action potential during a train of action…

A: The rapid and large change of membrane potential of a nerve cell during which the potential reverses…

Q: What is action and resting potential and how does it work in conducting electrical impulses?

A: Neurons are the functional units of the nervous system that transmit stimuli. The structure of a…

Q: What is dual innervation?

A: Dual innervation refers to the innervation of a target organ by both divisions of the ANS. Usually,…

Q: How graded potential triggers as action potential at trigger zone (area 5)?

A: In order to bring out a response, the nerve impulse conduction happens along a chain of neurons. In…

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: Define depolarization, repolarization, and the action potential.

A: Depolarization in terms of a cell can be explained by the condition of less negative charge inside…

Q: Describe depolarizing of graded potential? Explain with an example?

A: A depolarization occasion may just create an evaluated potential, a smallish change in the membrane…

Q: ntinuously?

A: Given: Need to define how is a neuron prevented from firing potentials continuously

Q: How might the disease multiple sclerosis affect transmission of action potentials along a myelinated…

A: Sclerosis : It is the stiffening of a tissue or anatomical feature, usually caused by a replacement…

Q: What is the relationship between the threshold and an action potential?

A: At the time the potential difference approaches the threshold voltage then the decreased voltage…

Q: How are Action potentials are very different from graded potentials?

A: The neurons are the functional unit of the nervous system. These cells help in transferring the…

Q: How graded potentials differ from action potential?

A: Nervous system is the complex system in our body which controls the entire body and coordinates the…

Q: what is relative refractory?

A: The refractory period refers to the specific time interval when the excitable cells (like neurons)…

Q: Why is the cell unable to initiate another action potential if stimulated during the refractory…

A: The time between two consecutive action potentials is called refractory period. Action potential…

Q: What is the threshold potential?

A: The difference in electrical potential between the exterior and interior of a biological cell is…

Q: How do ion channels and sodium-potassium pumps contribute to the resting potential?

A: Ion channels are pore forming membrane proteins that allow ion to pass through the channel pore.…

Q: What is absolute refractory period?

A:

Q: Explain the all-or-none law of action potentials, and describe the effect of increased stimulus…

A: In reaction to stimuli, the axon membrane permeability to and depends on the opening of gated…

Q: What is the difference of depolarization and hyperpolarization? Why do cold receptors depolarize…

A: both are the phases in the generation and conduction of an action potential.

Q: List the differences between graded potentials and action potentials?

A: Nerve cells are able to conduct impulse as they are excitatory cells. The membrane of these cells is…

Q: What is relative refractory period?

A: Refractory period – duration of time during which the cell is unable to respond to a stimulus. It…

Q: When do EPSPs and IPSPs occur?

A: EPSP  :- Cause Membrane Potential to move closer to threshold. Caused by an opening of Cation…

Q: What is Graded Potentials?

A: A transitory, propagating, fast and sudden change occurring in the resting membrane potential of a…

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 is a graded potential, and what four events cancause it? Define decremental conduction of…

A: The neuron is the structural and functional unit of the nervous system. The neuron is also known as…

Q: What happens when a graded potential occurs?

A: Graded potential is produced when a ligand opens a ligand gated channel in a dendrite allowing ions…

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

A: Action potential is an electrical signal that travels along the cell membrane of neurons. It is…

Q: What is resting potential?

A: Plasma membrane is the outer boundary of the cell. It is selective permeable in nature that is it…

Q: Once an EPSP is produced in a dendrite, how does it stimulate the production of an action potential…

A: An excitatory postsynaptic potential in short ESEP is a modification in the post-synaptic cell’s…

Q: How does conduction along a myelinated fiber differ from conduction along an un-myelinated fiber?

A: Myelin is a substance which is rich in lipids and surrounds the nerve cell axons in order to…

Q: Explain the cocept of Myelin Sheath ?

A: All organisms are made of billion s of cells. All cells are like the bricks that organise to make up…

Q: How can the Graded potentials be recorded?

A: Instead of being all-or-nothing, graded potentials are small changes in membrane potential. They…

Q: What are the two main factors that influence the conduction speed of an action potential along an…

A: An action potential occurs when a neuron sends information down an axon, away from the cell body.…

Q: In myelinated axons where are the most Na+ channels found?

A: Axon is the largest part of the neuron measuring up to 1meter in length. They carry the nerve…

Q: What is rapid depolarization? What are its side effects?

A: Depolarization also known as the hypo polarization . It is a broad term and used in different…

Q: How different are theconcepts of action potential,resting potential andexcitation…

A: Step 1 The nerve impulse is a wave of electrochemical disturbance that passes along the elements of…

Q: How is action potential propagated along the axons?

A: When a neuron's axon wants to send information along the body, it generates an action potential. It…

Q: Differentiate between excitatory postsynaptic potential EPSP and inhibitory postsynaptic potential…

A: The postsynaptic mechanism is referred to as the transportation and conduction of impulses in the…

Q: Define Refractory period and differentiate between Absolute refractory and relative refractory…

A: The action potential is a difference in concentration of Sodium (Na+) ions and Potassium (K+) ions…

Q: How do you identify an inhibitory neuron?

A: The neuron can be defined as the basic unit of the brain and it is the type of specialized cell that…

Q: epsp’s and ipsp’s, where are they occurring

A: A transient depolarization of the postsynaptic membrane generated by the passage of positively…

Q: What is the difference between the absolute refractory period versus the relative refractory period?

A: Refractory period – duration of time during which the cell is unable to respond to a stimulus. It…

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.