Explain why alterations in potassium concentrations have more powerful effects on membrane resting potentials than alterations in sodium ions

Q: a cell with the following ion concentrations had a resting membrane potential of -40mV which of the…

A: Cell membrane is selectively permeable to some specific ions.

Q: Which two factors involving ion diffusion determine the magnitudeof the resting membrane potential?

A: The resting membrane potential is determined mainly by the two factors: differences in…

Q: Predict the effect of a reduced extracellular concentration of Na+ on themagnitude of the action…

A: When a membrane's resting potential experiences a sudden, fast, and propagative change, it is…

Q: In certain diseases, such as kidney failure, the Na+ concentration in thebody’s extracellular fluid…

A: Kidneys are vital for maintaining the balance of nutrients and minerals in the blood plasma. Renal…

Q: Which factors determine the resting membrane potential? Explain why the resting membrane potential…

A: An action potential is a phenomena that happens when the voltage of a membrane rapidly increases and…

Q: Describe how the magnitude and polarity of the sodium and potassium membrane currents vary with the…

A: The activation of a neuron or muscle fiber is mediated through the modulation of its membrane…

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: Describe the mechanism through which a potassium channel can selectively move K* ions across a…

A: Answer : The awareness gradient and the huge range of K+ ion leak channels permit kt to be inhibited…

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: Explain Slow-wave oscillations in the membrane potential?

A: The difference between the electric potential inside and outside of the cell is called the membrane…

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: Describe the potassium and sodium equilibrium potentials.

A: The equilibrium potential refers to the electrical potential difference across the cell membrane…

Q: Explain the relationship of the resting membrane potential to the two equilibrium potentials.

A: resting membrane potential is primarily dependent on the potassium ion concentration gradient.…

Q: Define the term mechanically gated ion channels?

A: Ion channels are formed by multiple individual protein that makes a path for charged ions from…

Q: Explain A Miniglossary of Terms Describing the Membrane Potential

A: The difference in electrical potential across the plasma membrane of the cells is referred to as…

Q: What is the driving force (in mV) acting on Sodium flow at the peak of the Action Potential in a…

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

Q: Given that tissue A has significantly more K+ leak ion channels thantissue B, which tissue has the…

A: Resting membrane potential is considered a product of the ion distribution across the membrane and…

Q: Describe the sequence of activation of ion channels leading to action potential propagation.

A: The action potential is produced in a nerve or muscle when it is stimulated. It is the method of…

Q: High Potassium can cause the symptoms seen in hyperkalemia. What about low potassium, known as…

A: Hypokalemia is a condition characterized by decreased levels of potassium ions in blood. The normal…

Q: explain the difference between a ligand gated and voltage gated ion channel

A: Cell signaling begins with the interception of a signal or stimulus by a receptor molecule. The…

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: Upon reaching electrical threshold, which of the following ion channels will open? Leak K+…

A: Neurons or nerve cells are the units of the nervous system. The parts of a neuron are dendrites,…

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: 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: 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: 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: Explain the contribution of the Na+/K+ pump activity to the genesis and maintenance of the resting…

A: The channels are the particular transmembrane proteins that are responsible for transportation of…

Q: Describe the role of sodium ions and sodium channels in generating an action potential

A: Sodium serves as both electrolyte and mineral, very abundant ion present in the extracellular fluid.…

Q: Explain action potential generation in terms of cell potential, ionic concentrations, movement of…

A: An action potential occurs in many cells of animals such as muscle cells, neurons, endocrine, and…

Q: Discuss the importance of the sodium-potassium pump in the establishment of resting potentials and…

A: Neurons are responsible for the electromagnetic conduction of the signals in the form of stimulus.…

Q: Explain Role of Na+ in the generation of action potential.

A: Ions are a charged atom or molecules. The unequal distribution of positive and negative charge…

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: Describe two things that contribute to the resting membrane potential

A: A neuron is a nerve cell that is excited and transmits its signals down the line. It takes messages…

Q: There are differences in Na+, K+, and Cl- ion concentrations across the membrane.  Knowing that ions…

A: Neurons are known to generate electrical signals when the permeability of the cell membrane is…

Q: Explain how the changes in Na+ and K+ ion concentrationsthat occur during an action potential are…

A: Introduction  Chloride is the most abundant anion in the extracellular fluid. Along with Chloride…