B Based on all the charges around a neuronal membrane, the resting membrane potential is closer to that of the potassium ion equilibrium potential than it is to the sodium ion potential. This is because the potassium equilibrium potential is enhanced by the presence of proteins potassium has a stronger charge the electrochemical force of potassium is stronger potassium's concentration gradient is much larger the membrane is more permeable to potassium

Q: This patient's hypokalemia was due to his profuse sweating the previous day and the subsequent loss…

A: Potassium is a mineral, our body cells need this, it regulates our major body parts functions such…

Q: Which statement does the graph illustrate? Probability of Na channel opening 0.8 0.6 0.4 0.2 0 -80…

A: In membranes, the voltage-gated sodium channels and voltage-gated potassium channels are involved in…

Q: +30 mV Threshold Potential Resting Potential Time Question: In the abnormal action potential (bottom…

A: Action potential  The excitation of neurones by the action of stimulus generates action potential.…

Q: Calculate the resting membrane potential for the following case: gNa= 2 nS, gk = 10 nS. Temperature…

A: The formula given calculates a cell's resting membrane potential (Vm) under particular…

Q: Which phase in the generation of action potential is represented by N? +30 M N K -55 -70 Time…

A: Whenever a neuron is triggered by a stimulus, it experiences a brief shift in electrical potential…

Q: Which ion channel is open at the point beyond O? M N K - -55 -70 Membrane potential (mV)

A: K+ leak channels allow K+ ions to travel out of the cell freely according to the concentration…

Q: Action potential +40 -55 Threshold Falled initiations Resting state -70 Stimulus 1 Refractory period…

A: Every cell has a potential that is difference in the charge due to many factors one of them is…

Q: Describe the events that must occur to generate an AP. Relate the sequence of changes in…

A: The action potential is a quick increase and succeeding fall in membrane potential or voltage across…

Q: atch the description with the statement that best describes the following statements…

A: When a cell is not stimulated, its resting membrane potential is defined as the electrical potential…

Q: Explain why the inside of the membrane changes form a jet negative charge to a positive charge at…

A: Whenever a nerve impulse is communicates from a cell body, the sodium directs the cell membrane open…

Q: Calculate the equilibrium membrane potential for Na* for an extracellular fluid concentration of 138…

A: Membrane potential is ion is defined as the difference in electrical change across the cell…

Q: a. If one reduced the extracellular concentration of Na+ around a neuron, what would happen to the…

A: All cells have an electrical potential difference or membrane potential across their plasma…

Q: At what time (in milliseconds) is the inside of the neuron the most positive and why?  Explain why…

A: The graph represents action potential in neuron.

Q: eurons have a resting membrane potential of ___________________.   varying votage as type and…

A: The resting potential is mostly determined by the concentrations of the ions in the fluids on both…

Q: The interior of a neuron's plasma membrane at resting membrane potential will have a positive charge…

A: Membrane potential is also more commonly known as membrane voltage or transmembrane potential. It is…

Q: 3) You are investigating the ionic selectivity of an ion channel opened by activation of a specific…

A: A.                                   E(K+)= RTnFlnOUTIN=8.314×2981×96485ln5140=-0.089≈-89mV…

Q: concentration (mM) concentration (mM) Based upon these physiological concentrations and a normal…

A: In animal cells, the plasma membrane expresses a different types of ion channels and pump which…

Q: - For the resting membrane potential: a- The inside is negative in comparison with the outside. b-…

A: Resting membrane potential is the voltage across the plasma membrane before the actual action…

Q: a. If one increased the extracellular concentration of K+ around a neuron, what would happen to the…

A: Resting membrane potential is negative because the negative charge is present inside the cell which…

Q: The resting membrane potential in neurons is described as an electrochemical gradient. You have…

A: Resting membrane potential (RMP) is defined ss the potential inside the cell when the cell is in…

Q: 1. Shown below are figures of the closed and open structures of the voltage gated potassium channel…

A: Introduction Voltage-gated K+ channels, also known as Kv channels, are found in almost all animal…

Q: :

A: Introduction: Action potential takes place when the membrane potential of a cell rises and falls…

Q: Describe the flow of ions in these cells in action potentials - skeletal muscle - neuron

A: The nervous system establishes its function by means of neurons or nerve cells that aid in the…

Q: Describewhat role potassium plays in healthy, normal excitable cells. First, describe what potassium…

A: The resting membrane potential is the result of the development of a few diverse ion species through…

Q: The resting membrane potential is a negative value because of:

A: The resting potential of a neuron is constrained by the distinction in complete charge between…

Q: You attempt to generate an IV plot for GABA channels in cultured neurons. You apply pentobarbital…

A: GABA ( Gamma Amino Butyric Acid) is an inhibitory neurotransmitter secreted by our neurons to…

Q: Using the graph, you would need an EPSP of ________mv to get an AP every 6ms.

A: EPSP or excitatory postsynaptic potential is developed by the binding of neurotransmitter with the…

Q: factors responsible for a negative resting membrane potential include: check all that apply:   a.…

A: We can say that The negative resting membrane potential of a cell is the membrane potential that is…

Q: What does glutamic acid do to the membrane potentials of: Neurons - Muscles -

A: Glutamic Acid : It is an α amino acid which is used by all living beings & organisms in the…

Q: Which of these ions is actively transported through the cell membrane to re-establish a resting…

A: Resting phase  The potential difference(a charge) across the membrane at rest is called the resting…

Q: Explain what is going on at sites A, B, C, D, F and G in relation to CHARGE (negative, positive,…

A: Action potentials are electrical impulses that neurons use to interact with one another. The…

Q: During extreme dehydration, plasma K* can increase to as high as 10 mM. (A) What would the membrane…

A: Introduction  When you use or lose more fluid than you consume, your body becomes dehydrated because…

Q: If K+ channels are blocked by TEA (tetraethyl ammonium), what happens to the equilibrium potential…

A: Potassium channels These are membrane proteins which allow rapid and selective movement of K+ ions.…

Q: Our patient cannot remove potassium from their extracellular fluid. This is known as hyperkalemia.…

A: Hyperkalemia is a medical term given to a person having a potassium level in his or her blood that's…

Q: Separately, draw a table using arrows to depict the appropriate magnitude and direction of the…

A: Membrane potential is the difference in electric potential between the interior and the exterior of…

Q: Explain why alterations in potassium concentrations have more powerful effects on membrane resting…

A: The plasma membrane of almost every cell in the body maintains a resting potential. However the…

Q: threshold resting membrane potential decrease calcium channels increase action potentials The…

A: Introduction: The action potential is the short series of events in the membrane potential that…

Q: The patient's muscle weakness, dizziness, and nausea are all due to hypokalemia. How does…

A: When the serum potassium level decreases from the normal value then it arises a condition to define…

Q: Nervous Tissue electrical and chemical disequilibrium across cell membranes equilibrium potential…

A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which…

Q: Which ion channel is open at phase K? M N K - -55 -70 Time Voltage-gated ion channel specific to…

A: The graph represents the phases of action potential . Action potential is the change in the membrane…

Q: In a resting excitable cell, the membrane is always slightly leaky to K*, because it has a small…

A: The electrical potential difference that exists across a cell's plasma membrane is known as the…

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.