What is the polarized membrane state? How is it maintained? (Note the relative roles of both passive and active mechanisms.)

Q: • Describe the concept of transport maximum (Tm). • Explain the membrane potential and the…

A: The term cell membrane or plasma membrane is associated with a protective layer enveloping the…

Q: The resting membrane potential of a neuron typically is  70 mV. What does this mean?

A: The nervous system is involved in the coordination and controlling of various activities in the…

Q: Multiple sclerosis is a demyelinating disease affecting the central nervous system. What type of…

A: The nervous system is the control system of our body and it consists of neurons. The neurons receive…

Q: At rest, a neuron has a lower concentration of sodium than the surrounding fluid. The neuron also…

A: Sodium- Potassium pump The sodium - potassium pump involves protein called the sodium- potassium…

Q: What happens to the membrane potential inside and outside of the cell when Cl- channels are open?

A: Ion channels are integral proteins that provide for the regulated transport of a specific ion, or…

Q: What is the expected resting membrane potential (in mV) of a neuron that is typical in all ways…

A: The membrane potential is a term that signifies the distribution of opposite charges across the…

Q: Explain what a membrane potential is.

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

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: Which channel membrane protein is specifically important in the process of neurotransmitter release…

A: Nerve impulse gets transmitted through the synapse. The main role to transfer the nerve impulse is…

Q: What kind of graded potential describes a change in membrane potential from  70 to  60 mV? From  70…

A: The membrane potential is the difference between the two electric potentials the interior and the…

Q: What role do the Na+/K+ pumps play in establishing the resting membrane potential?

A: Ans: Na+/K+ pumps: The Na+/K+ pump or ATPase is the electrogenic transmembrane enzymes which is…

Q: what is membrane potential?please briefly define.

A: The outermost layer of all animal cell is cell membrane which is made up of lipid bilayer with…

Q: How does the Na+/K+ pump contribute to the development of a membrane potential?

A: Na+/K+ pump or Sodium-Potassium pump is an enzyme present in cell membrane of all animals.Its role…

Q: What is membrane potential and how is this created?

A: Membrane potential: Membrane potential gives permeability to the positive and negative ions.…

Q: Define the Membrane potential of an inactiveneuron ?

A: A resting (non-signaling) neuron contains a voltage across its membrane known as the resting…

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: What functions do Na1/K1-ATPase membrane pumps play in the membrane potential? Are these functions…

A: Na+/K+ ATPase also known sodium-potassium ATPase pump is an enzyme found in the membrane of all…

Q: A fellow classmate is planning to study endocytosis at neuronal synapses for their senior thesis. He…

A: Endocytosis is described as a the process in which the cell membrane's flexibility helps them in…

Q: What is Ligandgated ion channels?

A: Protein is a complex structure that is joined through the peptide bonds. They are located in all…

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: What is the typical resting membrane potential of a neuron?

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

Q: What is the role of the Resting Membrane Potential?

A: The neurons present in the central nervous system are involved in signal transmission. The signals…

Q: When does the membrane gets depolarized?

A: The presence of opposing electrical charges on either side of a cell membrane is referred to as…

Q: WHat are ligand-gated ion channels?

A: The cell membrane regulates the flow of materials into and out of cells and organelles. the cell…

Q: Describe how resting potential is achieved and what ions are involved in it and what side of the…

A: The plasma membrane of a cell is selectively permeable as it tends to permit the transfer of…

Q: EXTRACELLULAR INTRACELLULAR ION CONCENTRATION CONCENTRATION (mM) (mM) K* 4 140 Na* 145 15 Cl 110 4…

A: Membrane potential is a difference between intracellular and extracellular electrochemical…

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: In what way does the interior surface of the cell membrane of a resting (non-conducting) neuron…

A: The resting membrane potential is a result of different concentration inside and outside the cell .…

Q: What is membrane potential?

A: Introduction  Our body contains different types of ions such as Sodium, Potassium, Calcium, Chloride…

Q: If the extracellular K* concentration increases to 20 mM, what would be the Nernst Potential of K*…

A: Membrane potential is the voltage difference between inside to outside of the cell. In absence of…

Q: What happens to the membrane potential inside and outside of the cell when Na+ channels are open?

A: Membrane potential is a potential gradient that forces ions to passively move in one direction.

Q: How does the movement of ICF K+ ions down its concentration gradient affect membrane potential?

A: In a biological cell, the difference in electric potential between inside and outside is called…

Q: Describe the proteins involved in membrane fusion and neurotransmitter release that are located on…

A: During the neurotransmitter release, several SNARE protein complexes are involved with synaptobrevin…

Q: Is there any receptor (s) on the interior / cytoplasmic side of tha plasma membrane ? If yes ,…

A: The cells respond to extracellular signals through receptors. These receptors are located on the…

Q: Why is the movement of ions across the plasma membrane important, and in which direction do ions…

A: The cells are separated from the external environment by the presence of Plasma membrane. The…

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: Why is it importance to maintain the resting potential of membrane

A: The inside and outside of a cell membrane have different electrical charges. This relative…

Q: Plasma membrane permeability of which of the following ions is most important in generating the…

A: Resting membrane potential are kept up with by two different kinds of ion channels: the…

Q: What is the application of electrical application in Cell Membrane potential gradient?

A: A cell membrane separates all cells from their surroundings. The cell membrane controls what enters…

Q: Why the reversal potential of ligand-gated ion channels is around zero?

A: The Ligand-gated ion channels, which are also known as ionotropic receptors, are a group of…

Q: The extracellular concentration of Cl-Cl¯ is 123 mM and the intracellular concentration is 4 mM. In…

A: The ion membrane movement is influenced by the two energetic factors are concentration gradient 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.