Sodium channels in membrane can open in response to what?

Q: What is axonal transport?

A: The nervous system is a complex system of nerves and specialised cells known as neurons.  The…

Q: List the general categories of intercellular messengers and brieflydescribe how they differ?

A: Chemical messengers are the substances that deliver the signals.

Q: How can the resistance (Rm) of a membrane be increased? Increase conductance by opening ion channels…

A: A membrane resistance (Rm) is a measurement of how challenging it is for ions to cross the membrane.…

Q: Describe Diffusion of Ions Through Ion Channels Ions?

A: CELL MEMBRANE- It is also known as Plasma membrane or Cytoplasmic membrane. It is situated beneath…

Q: Which type of transport is most likely used to export Na+ out of the cell?

A: The plasma membrane is selectively permeable. This means that the membrane allows some materials to…

Q: Name the three types of cell communication.

A: The cell is the smallest structural and functional entity of a living organism. In a multicellular…

Q: List the four categories of chemical messengers of intercellular communication?

A: BASIC INFORMATION IMMUNE SYSTEM  It defends our body from the foreign particles which can cause…

Q: Explain with an example the general principle of physiology that controlledexchange of materials…

A: Principle of Physiology by which exchange of materials occur between compartments -- The mechanism…

Q: Gap junctions are dynamic structures that, like conventional ion channels, are gated: they can close…

A: An animal cell comprises of various types of intercellular junctions that form both structural as…

Q: Which of the following is ther eason why the potassium leaves the cell readily at the peak of the…

A: The electrical potential across the neural membrane when the neuron is at rest i.e unstimulated…

Q: Create a table that lists the sequence of events thatcreate an action potential, identifying the…

A: Neurons and glial cells form the constituent of the nervous system. The main function of the neurons…

Q: What is the result of opening a membrane ion channel?

A: Ion channels are the proteins in the membrane of all living cells that provide a passage to the…

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 Diffusion of Ions Through Ion Channels?

A: Passive transport is a mode of membrane transport where no energy is utilised for the transportation…

Q: Plasma membrane of neurons has various kinds of channels. Give your viewpoint why nature provided…

A: The neuron is the basic working unit of the brain, a specialized cell designed to transmit…

Q: dEfine the term Axonal transport?

A: Axonal transport occurs through the cytoplasm of axon called axoplasm.

Q: Discuss permeability

A: Permeability of any given membrane can be defined as the degree to which it allows any substance to…

Q: How does ionic composition of endolymph differ from most extracellular fluids? It is K+-poor and…

A: Endolymph is the fluid which is filled within the membranous Labrynth of the ear.

Q: What happens to cause depolarization andhyperpolarization? How do alterations in the K+concentration…

A: The cell remains in a resting state until the stimulus triggers. Due to the action potential, the…

Q: Contrast the abilities of intracellular and extracellular fluids andmembrane lipids to conduct…

A: impulses are flows into the dendrites and cell body of most neurons by acetylcholine. impulses are…

Q: Explain Receptor proteins.

A: Receptor proteins

Q: This depolarizes the cell membrane:     inflow of chloride     inflow of sodium     outflow of…

A: Depolarisation  In biology, depolarisation is the phenomenon where membrane electric volts in become…

Q: List the three steps involved in intercellular communication

A: All living things are composed of cells, the basic units of life. Cells must be able to communicate…

Q: Explain Signaling by Receptors That Are Ligand-Gated Ion Channels?

A: Signal transduction (also known as cell signalling) is the transmission of chemical messages from…

Q: Explain "integrins can convert mechanical signals into intracellular molecular signals" is true or…

A: Mechanotransduction is the process by which mechanical signals are transformed into biochemical or…

Q: Predict the effect of a decrease in the extracellular concentration of Ca2+on the resting membrane…

A: The resting membrane potential occurs due to the change in the membrane permeability for calcium,…

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: Fill in the diagram, your illustration should demonstrate for each phase of the AP: 1. The relative…

A: Action potential (AP) occurs when membrane potential on a specific location of a cell rapidly rises…

Q: How do A G protein directly gates the ion channel?

A: Ion channel: Ion channels are transmembrane proteins that have a specialized structure called a…

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.