3. Suppose you discover a chemical that can block leak potassium channels. What might happen as a result of this blockage? A) Na might have a larger influence on resting potential B) All of the answers are correct C) The Na/K pump activity might slow D) K would become less permeable

Q: 1. What would happen if Na+ channels opened and stayed open?

A: Sodium channels are integral membrane proteins that form ion channels conducting sodium ions through…

Q: Propagation of action potential and transmission mean:   current flow along the cell membrane…

A: Introduction: The action potential is the name given to the brief series of events that occur in the…

Q: Please ASAP. Thank you If the resting membrane potential is -65, give the direction of the flow of…

A: The answer is shown below.

Q: in neurons when cl- influx into the axoplasm through chloride channel, hyperpolarization could…

A: Neurons conduct electrical impulse by using action potential, which is generated through flow of…

Q: One mechanism underlying the anesthesia is opening increase numbers of potassium leak channels.…

A: Anesthesia refers to the induced state of a person in which the sensation is temporarily lost. It…

Q: If all the Ca2+ in the fluid surrounding a neuron were removed, how would this affect the…

A: Action potentials coming at synaptic knobs enhance the release of neurotransmitter into the synaptic…

Q: the normal extracellular Na+ concentration is 140 mM and you replace Na+ such that the extracellular…

A: Given The extracellular sodium is changed from 140mM to 14mM

Q: 1) What happens to the RMP as the extracellular K* is increased? In other words, does RMP become…

A: We are answering question from 1 to 3. For rest of questions pls repost

Q: The extracellular sodium [Na+]0 is reduced in the saline bath. Following another current injection…

A: Polar large size molecules (glucose, amino acids) and Ions (Na+, H+,k+, Ca+) can't pass…

Q: What is mechanically gated ion channels?

A: Ion channels are membrane channels and allow ions to travel out or into the cell. The ion channels…

Q: How do leak channels contribute to resting membrane potential?

A: The nerve impulse is an electrical signal that travels along the neuron. The charged particles…

Q: 1. Describe the role of differential electrical charge across the cell membrane in both non-…

A: Definition: -  Membrane potential or Transmembrane Potential is a the difference of electric…

Q: How much current actually flows across the membrane over the course of an action potential?

A: Cell to cell communication is an important aspect of all living organisms. It is required for the…

Q: What is the relative importance of the Na+/K+ pump in action potential propagation?

A:

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: What are the opposite roles of voltage-gated sodiumchannels and voltage-gated potassium channels?

A: Ions like Sodium and Potassium are the key elements in cellular metabolic activity. Sodium and…

Q: An action potential does occur in response to a _____ , which strong enough to depolarize the…

A: Whenever the potential or the membrane of a given cell suddenly rises and falls, an action potential…

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: How does increasing the intracellular Na+ concentration affect the action potential of a neuron?

A: The action potential is the characteristic increase and decrease of the membrane potential following…

Q: 10. A ligand binds to a channel and opens it, resulting in the influx of sodium into a post-synaptic…

A: The point of communication between two neurons or between a neuron and a target cell is known as a…

Q: Explain the flow of ions in mechanically-gated ion channels.

A: Mechanically Gated Ion-Channels:- Ionic channels can be of three types: 1. Voltage-gated ion…

Q: An 82-year-old woman is brought to the emergency room complain- ing of nausea, vomiting, muscle…

A: Introduction: Hyperkalemia is a condition of high potassium levels in blood.

Q: Differentiate between mechanically gated ion channels and e voltage-gated ion channels?

A: Introduction  A plasma membrane is a selectively permeable membrane that allows the only selective…

Q: Define the term channel gating?

A: Cells are functional units of living organisms. For the proper functioning of multicellular…

Q: Calcium channel-blocking drugs are sometimes given to patients with heart problems. If a patient is…

A: We know that Calcium channel blockers are a group of antihypertensive drugs, which disrupt the…

Q: On the graph above, when do the sodium ion channels close? Select one: a. between 0.2 ms and 0.5 ms,…

A: When the stimulus is provided, the Sodium ion VGIC's (Voltage-gated ion channel) move from resting…

Q: 8. Define the following terms: a. resting membrane potential b. depolarization c. threshold d.…

A: The nervous system is the network of nerves and neurons which are responsible for the transmission…

Q: You measure the membrane potential and find that it does not change from time X to time Y. However,…

A: Introduction : Membrane potential results from differences in the concentration and permeability of…

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: List the Forces influencing sodium and potassium ions at the resting membrane potential?

A: The voltage across a cell membrane during the resting stage is known as the resting membrane…

Q: How are action potentials created? What is the process with regard to membrane potential, sodium,…

A: The neurons have the capability of producing and transmitting electrical impulses throughout the…

Q: What are resting and active (potential) levels of sodium and potassium inside and outside of the…

A: Neurons or the nerve cells send messages electrochemically. That means that chemicals cause an…

Q: 1. It is not important to know the actual numbers for absolute or relative refractory periods.  Due…

A: Action potential always propagates at the same amplitude through the whole length of an axon. But,…

Q: 4. a) Which channel/s is/are open when resting membrane potential is formed? b) Which channel/s…

A: a) Normally indide of the cell is negetively charged and outside is positively charged.  Resting…

Q: Nerve membrane hyperpolarization after an action potential a)Is the movement of membrane potential…

A: The neuron is the basic working unit of the brain, a specialized cell designed to transmit…

Q: What does the sodium-potassium pump do to reset and maintain resting potential? Inwhat sense is this…

A: Membrane transport is a term that refers to a set of mechanisms that control the passage of ions and…

Q: When a Na Channel opens, which direction does Na move?

A: Cells have membranes made of lipid molecules, and they prevent most things from entering or leaving…

Q: If channels are permeable to ____ and ____. How does the presence of these channels lead to…

A: Funny channels or Hyperpolarization-activated and cyclic nucleotide-gated (HCN) channels in the…

Q: The action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the…

A: 1) Light  stimulated the channel. Sensory neurons, like the ones that sense light in your eyes, are…

Q: Describe the activity of the sodium-potassium pumppresent in neurons.

A: Neurons (also known as neurons or nerve cells) are the basic components of the brain and nervous…

Q: Why is the sodium-potassium pump indirectly important to the ac-tion potential and to maintaining…

A: The sodium and potassium particles are pumped in inverse ways over the layer. This pump manufacture…

Q: 1: Describe the changes in the neuron membrane that occur throughout the course of an action…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Action potentials in heart muscle cells have a prolonged plateau phase caused by ______through…

A: The heart muscle cells has 5 phases in their cardiac action potential ; namely phase 0 , 1 , 2 , 3 ,…

Q: What are the factors that could affect the ion movement?

A: Answer

Q: What would happen to the calcium transient following sympathetic stimulation? How are the transport…

A: The autonomic nervous system consists of two main divisions; sympathetic and parasympathetic…

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.