Sodium (Na*) and Potassium (K+) are equally distributed across the neuronal membrane at resting membrane potential because of the: O Unassisted passive diffusion across the membrane O Nat/K+ Pump O Nongated Channels Voltage-gated Channels O Chemically-gated Channels

Q: In an excitable cell at rest, we expect to find ______ ions effluxing out of the cell through leak…

A: The cell is said to be at resting membrane potential when the cell potential is at rest, and the…

Q: In the figure to the left, name the 4 phases of the action potential (Note: you have to write in…

A: Hello! Since you have asked multiple questions, we will solve the first question for you. If you…

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: Voltage-gated sodium channels are open and allowing sodium to flow when: O The membrane is at the…

A: When the membrane potential of a particular cell site rapidly increases and decreases, an action…

Q: What condition is required for a specific ion to contribute to resting membrane potential?

A: Membrane potential is the difference between the electric potential on two sides of the membrane i.e…

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 of the following occurs immediately after the peak of an action potential? The membrane…

A: Change in electrical potential related with the impulse entry along the membrane of a muscle cell or…

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

A: Ion influxes at membrane potentials refer to the movement of ions across the cell membrane in…

Q: Which of the following is not an excitatory ligand-gated ion channel? NACHR AMPAR ASIC GABA-AR

A: Neurons send electrical signals by generating and transmitting action potentials. Neurons have…

Q: Which of the following statements best describes the features of voltage-gated K+ channels?…

A: Voltage-gated potassium (K+) channels are ion channels that help regulate the membrane potential of…

Q: Which of the following is one major difference? [Choose ] Only action potentials cause…

A: There is difference in the concentration of ions inside and outside the each cell of body and this…

Q: This type of signal involves the movement of ions across the plasma membranes: graded potentials…

A: Cell connections link directly to the cytoplasm of neighboring cells. When cytosolic chemicals can…

Q: The membrane of most cells, including neurons, contains passive, open, K' leak channels. Given the…

A: The cell membrane is the biological membrane that separates the interior of the cell from the…

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

A: Ligand-gated channels are integral membrane proteins that respond to the binding of specific…

Q: The above repolarization of a neuron will result in which of the following ionic currents? a…

A: Action potential generates when the neurons want to pass the information along the body from its…

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 happens to the membrane potential inside and outside of the cell when K+ channels are open?

A: Potassium Channels are actually membrane proteins that allows  K+ ions to come in across the cell…

Q: What is the relationship between the sodium-potassium pump and a neuron's resting membrane…

A: The sodium-potassium pump (Na,K-ATPase) was discovered in 1957. It is required for nerve…

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: When a neuron is a rest, the sodium ions flow through the membrane at a very low rate. Why is this?…

A: Ion channels are essential components of neurons that allow for the production and transmission of…

Q: Which of the following intracellular potentials would have the greatest electrical attraction for…

A: Cell Membrane potential is a potential slope that forces ion particles to move in one side. positive…

Q: Which of the following is the correct statement regarding ion channels?   Physical deformation of…

A: Ion channels, integral membrane proteins, facilitate the passage of ions through pore formations.…

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: A post-synaptic cell responds to an incoming signal by opening chloride gates. What will be the…

A: The synapses are the neuronal connections in the nervous system. The synaptic junction allows the…

Q: Batrachotoxin (BTX) is a steroidal alkaloid from the skin of Phyllobates terribilis , a poisonous…

A: The membrane exhibits different ion channels, which open and closed based on the signaling process.

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: If the equilibrium potential for K+ is -90mV, and the charge inside the cell is -70mV, which…

A: Membrane potential is the difference in internal and external electric potential of a cell. This…

Q: In an experiment, the extracellular [Na+] surrounding a nerve cell was reduced from 145 to 45 mM.…

A: In the presence and absence of an impulse, the nerve cells exist in two states known as action…

Q: mbing fiber depolarizes mbrane potential to en Ca2+ channels. tage-gated channel 2+ Ca²+ Release 2+…

A: The objective of the question is to identify the most direct mechanism causing the postsynaptic…

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

A: Ligand-gated channels are integral membrane proteins that respond to the binding of specific…

Q: When a membrane channel opens, there is a reduction in the membrane_ which generates allowing ions…

A: Resistance- Here resistance is implied as movement of ions across the membrane. During…

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.