ligand gated sodium channels Na+/K+ Atpase opening of sodium channels

Q: The opening of axonal voltage-gated K+ channels is responsible for which part of the action…

A: Theses channels locate in cell membranes and control transportation of K +ions efflux from and…

Q: DHP-Ryanodine receptors are: O Mechanically-gated O Voltage-gated O Always open O Ligand-gated…

A: Receptors-these are proteins present on the surface of cells that bind to ligands to cause responses…

Q: Explain how potassium is secreted in the DCT? T[K*] 3Na+ 3Na* 3Na* Aldo Kir4.1-5.1 2K+ 2K+ 2K+ ;…

A: The mineral potassium is the most plentiful in the body. It is localized to the intracellular area.…

Q: When a membrane is at rest, which channels are open? O Voltage-gated calcium channels O…

A: Neurons are the basic unit of the nervous system. The membrane potential of the neuron is…

Q: Which of the following ion channels are always sensitive to small changes in electric charge?…

A: Transport through the cell membrane is important for cells to supply nutrients, ions, and other…

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: 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: ny does this ion contribute the most to the resting membrane potential (Vmrest) Because this ion…

A: The difference in the number of positively charged potassium ions (K+) inside and outside the cell…

Q: how can targetting L-type calcium channels imporve hypermotility and hypomotilty

A: L-type calcium channels are voltage-dependent calcium channels found in various tissues throughout…

Q: Which ion channel is responsible for the release of neurotransmitters from the presynaptic neuron?…

A: The synapse or “gap” is the place where information is transmitted from one neuron to another.…

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: Which of the following represents amplification? O G protein activation by GPCR O Arrestin binding…

A: Signal transduction is the process by which a chemical or physical signal is transmitted through a…

Q: Which of the following is a voltage-gated channel?  L-type Ca2+ channel  M3  AChR  Beta 1 receptor…

A: The voltage-gated protein channels may respond to small changes in the dynamic membrane or…

Q: An experimental cell line expresses K+ inward rectifier channels, Na+ leak channels, K+ channels…

A: The α-1 adrenergic receptor is a type of receptor that is responsible for mediating the effects of…

Q: Cell swelling will most directly affect which type of channel protein? Group of answer choices…

A: Cell swelling is an change that occurs in acute cell injury and It may be a simply disappear as the…

Q: Which ion channels are controlled by change in membrane potential?     Voltage-gated channels…

A: Membrane potential can be defined as the concentration of ions across the plasma membrane and their…

Q: What is responsible for action potentials propagating in one direction? The inactivation of voltage…

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

Q: An experimental cell line expresses K+ inward rectifier channels, Na+ leak channels, K+ channels…

A: Because alpha-1 adrenergic receptors are found in both vascular smooth muscle and cardiac tissue,…

Q: What would the membrane potential be if the cell membrane suddenly became 10X more permeable to just…

A: Membrane potential is defined as the difference in electric charge across a cell membrane, making…

Q: Phase Peak Phase Falling Phase Q2. Phases of the action potential Rising Phase membrane is…

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

Q: what would the membrane potential be if the membrane became 10X more permeable to both sodium and…

A: When the membrane becomes 10 times more permeable to sodium (Na⁺) and chloride (Cl⁻) ions:Sodium…

Q: What is a common feature of the voltage sensitive Ca++, Na+ and K+ ion channels? A single…

A: The structure of Na+, K+, and Ca2+ channels is made up of four transmembrane domains arranged around…

Q: A pre-synaptic neuron releases the excitatory neurotransmitter Glutamate. What must be present in…

A: Signals are transmitted by the nervous system to the brain and spinal cord as a result we do our…

Q: Choose two false statements and explain why? Toxin causes voltage-gated sodium channels to open at a…

A: The toxins present in our body affects the activity of channels present inside the membrane .

Q: What is the membrane topology of typical voltage-gated ion channels and how are they sensitive to…

A: Voltage gated Ion channels are a class of transmembrane protein channels that extend from one part…

Q: The membrane potential in animal cells, but not in plants, depends largely on resting K+ channels.…

A: Ion channels are the membrane proteins that mediate the movement of ions across the membrane.

Q: Binding of acetylcholine to postsynaptic membranes increases the conductance of Na+ into the cell.…

A: The question is asking us to identify the type of transport mechanism that is involved when…

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: Ions like K+ cannot diffuse directly across the membrane. They need open ion channels to cross the…

A: Ion channels are a class of transmembrane proteins that allow a high rate of ion flow powered by the…

Q: The paddle-like, charged transmembrane domains of potassium channels may confer ion selectivity to…

A: The first question is about the role of the paddle-like, charged transmembrane domains of potassium…

Q: Some cells with very negative resting membrane potentials, like -80 mV, express an the inward…

A: The cell membrane separates the interior and the exterior of the cell. It is also called the Plasma…