Which of the following is a correct statement of the all-or-none principle? Select one: U a. A hyperpolarized membrane always results in the production of an action potential b. When a stimulus is applied, it triggers an action potential in the membrane O C. Action potentials occur in all neurons if a stimulus is applied that lowers the membrane potential d. A given stimulus either triggers a typical action potential or does not produce one at all

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 graded potential that achieves threshold leads to the generation of an action potential. Which one…

A: Graded potentials are made by outside stimuli in sensory neurons or by neurotransmitters discharged…

Q: You are recording the electrical activity of a cell body with a resting membrane potential of -70…

A: Given; Resting membrane potential of the cell= -70mV No. of stimuli detected by the cell= 3 from…

Q: Which of the following describe(s) the difference(s) between an EPSP and an IPSP? Select all that…

A: The synaptic junction can be excitatory or inhibitory in nature depending upon the release of which…

Q: Which of the following is NOT an example of communication that happens from one neuron to another…

A: Answer: - Option a - Endocrine signalling (ex. hormones secreted into the bloodstream travel and…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Ans: Chloride (Cl- )

Q: atch the description with the statement that best describes the following statements…

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

Q: During the Refractory period of the action potential, the neuron will: Select one: O a. Not respond…

A: Nerve cells or neurons are excitable cells of nervous system. A typical neuron consists of cell body…

Q: You generate action potentials in a neuron bathed in solution in a petri dish by applying a…

A: An action potential is a rapid sequence of changes in the voltage across a membrane. This action…

Q: Excitatory neurons A and B both synapse with neuron C. Neuron A releasesa neurotransmitter, and…

A: The junction between two neurons is known as a synapse and when a neuron reaches its action…

Q: Which of the following statements regarding polarized membranes is incorrect? a. There is a…

A: At rest, the ionic composition of the interior and outside of a neuronal membrane varies. As a…

Q: Which of the following would most likely occur if an electrical stimulus were applied at point C in…

A: The neurons have the capability to generate and propagate electrical impulses and it is known as…

Q: Jose measures membrane potential in two neighboring cells. He notices that when the membrane…

A: Membrane potential It refers to the difference in electric potential between the interior and the…

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: In a resting neuron, which of the forces listed below will act to push sodium (Na+) ions into the…

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

Q: Imagine that you are a scientist testing the action potential conduction rates in two different…

A: The neuron is the electrically excitable cells in the nervous system. Nerve fiber or axon is a…

Q: Which of the following changes to an action potential indicates a larger stimulus?  a. Increased…

A: Action potential takes place when the membrane potential of a particular cell location increase and…

Q: .dחaMa"in it the

A: The equilibrium potential is the particular membrane potential where the net flow through any open…

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

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

Q: What is/are true statements about Action Potentials? Select all that apply. Group of answer…

A: Action potential is a rapid rise and fall in voltage or membrane potential across cell membrane.…

Q: You have a neural system with three neurons; two presynaptic (PS1 and PS2) and one postsynaptic…

A: Neurons are the fundamental, structural, and units of both the central and peripheral nervous…

Q: Which of the following statements are true with regards to the differences between a neuromuscular…

A: The following statements are true with regards to the differences between a neuromuscular junction…

Q: Select one: O A. hyperpolarizing phase; K channels open B. hyperpolarizing phase: Na channels open…

A: The action potential is the change in the electric potential across the plasma membrane.

Q: If a neuron is stimulated simultaneously by 2 stimuli at its dendrites (one generates a very large…

A: The cells of nervous system are called neurons. They have 3 distinct parts, including the body of…

Q: Of the following, which must be true for an action potential? I - Action potentials only occur when…

A: The action potential is a potential that is fired when the voltage-gated sodium ion channels open.…

Q: describe how the membrane potential varies over time AND distance as a graded potential move across…

A: All cells have a membrane potential which is known as electric membrane potential. The active…

Q: List the membrane potential value that would coincide with the following events: a. Resting…

A: The neurons have the tendency to transmit the physical stimulus in the form of an electrical…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Here membrane potential raises from -70mv to - 55mv.  That means depolarization occurs.  At…

Q: Changes in ion permeability or ion concentration can alter the resting membrane potential of a…

A: A. Increase in [K+]out: H (Hyperpolarization)Higher external potassium concentration will increase…

Q: Lypically 10 the membrane potential at which a gra mv to 20 mv depolarized both of these.

A: Resting membrane potentials are maintained by 2 differing types of particle channels: the…

Q: What is/are true statements about Action Potentials? Select all that apply. Group of answer choices:…

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

Q: Which of the following are mechanisms of gustation transduction? Select one or more: a. Hydrogen…

A: GPCR receptor cells release certain neurotransmitters when some chemicals in ingested substances…

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.