At which point in the graph do voltage-gated potassium channels open? (Base your answer to this question on the graph below depicting an action potential.) A B C D E

Q: discuss the process of the neuron firing an action potential from the resting period to the…

A: The process of normal neuronal firing takes place as a communication between neurons through…

Q: After an action potential, the opening of voltage-gated ________ channels and the inactivation of…

A: Action potential When nerve cell respond to a stimulus, it generates electric impulse which travel…

Q: A neuron with a resting membrane potential of -75 mV receives multiple inputs giving rise to the…

A: The action potential is a condition of a nerve impulse or electrical activity when there is a…

Q: a.Would an action potential travels faster in an axon with a wide diameter or a small diameter? b.…

A: The structural and functional unit of the nervous system is called a neuron. A neuron is composed of…

Q: Based on the graph, how soon could another action potential be easily initiated (at the end of the…

A: Nerve cells or muscle cells have a tendency to transmit impulses. The changes in the electrical…

Q: If you increase the amount of neurotransmitter in the synaptic cleft, how would you expect the…

A: Neurotransmitter These are defined as the chemical messengers that carry chemical signals from one…

Q: What guarantees that there are unidirectional action potentials? Choice A threshold  B.…

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

Q: Answer the following questions in regards to voltage-gated channels in the neuron: a. What is the…

A: The neurons are the functional units of the nervous system that helps in sensory and motor…

Q: During the _____ phase of an action potential, both gates of the voltage regulated sodium channels…

A: The action potential (AP) is generated by the neurons and the muscle cells. The AP is comprised of…

Q: Which of the following combinations of spatial summation of postsynaptic potentials (PSP) would…

A: The graded potential achieved by dendrites of a neuron while receiving synapses from other cells is…

Q: increases the probability of producing an action potential, where a ________ decreases the…

A: Depolarization increases the probability of producing an action potential, where a hyperpolarization…

Q: Why are action potentials usually conducted in one direction?(A) Ions can flow along the axon in…

A: An action potential is defined as the sudden, fast, transitory, and propagating change in electrical…

Q: What is the difference between action potentials, generator potentials, and receptor potentials

A: The impulse travels through various neurons by making changes in the existing potential or the…

Q: When a neuron is inactive, more of which of the following exist OUTSIDE the neuron? A. Myelin…

A: Neuron is the fundamental unit of brain and nervous system. Neurons transmit signals from brain to…

Q: Which one of these is an example of an excitatory postynaptic potential in a typical neuron? a) A…

A: Introduction EPSPs Are Connected With A Transmitter-induced Increase In The Synaptic Membrane's Na+…

Q: f the absolute refractory period of a neuron is 0.7 milliseconds, what is the maximum frequency of…

A: The trick used by the nervous system is that the intensity of the stimulus is encoded into the…

Q: Which of these is least likely to trigger an action potential in a post-synaptic cell?  A)EPSPs and…

A:

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: An action potential at a given stretch of a neuron's axon does not re-stimulate the neighboring…

A: Action potential It is defined as the rapid rise and subsequent fall in membrane potential across a…

Q: Describe how following a threshold stimulus, a action potential is carried along an unmyelinated…

A: Myelination refers to the presence of a myelin sheath on the axons. Myelin sheath is composed of…

Q: What is the point A on the graph? Define this term. B) What ions are moving at B on the graph, what…

A: Action potential An action potential is defined as the sudden rise and fall in the membrane…

Q: An action potential begins when______ . a. a neuron reaches threshold potential b. voltage-gated…

A: Answer is a.) a neuron reaches threshold potential.

Q: The two primary factors that influence the speed of an action potential propagation are axon…

A: The nervous system is an exceptionally complex piece of a creature that arranges its activities and…

Q: Which of the following occurs first when voltage reaches the threshold level in a neuron plasma…

A: Ans: The potential is generated in the neuron or plasma membrane due to difference in sodium and…

Q: Saltatory conduction is a term applied to the "jumping" movement of action potentials Multiple…

A: Saltatory conduction is the movement of the action potentials along the myelinated axons from one…

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: The absolute refractory period of an action potential A. only ensures one-way travel down an axon.…

A: In neurology, action potential is defined as the rapid rise and gradual of membrane potential across…

Q: When summation of multiple graded synaptic potentials occurs which of the following would…

A: Post synaptic potentials or PSPs are called excitatory (or EPSPs) in case they increase the…

Q: After the depolarisation phase of an action potential, the resting potential is restored by ______.

A: Introduction An action potential is defined as a sudden fall or rise in the potential of the…

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: Use this illustration to place these events in the order they occur during synaptic communication:…

A: The above image shows the transmission of nerve impulses across a synapse. A synapse is a small…

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: During the rising portion of the action potential, which ions are moving across the membrane and in…

A: Action potential exhibits the potential difference across the membrane of a neuron.

Q: Use the figure below of neuronal communication to answer the following question. What major event of…

A: In the given figure we can see the neurons on the left is presynaptic neurons and one of the right…

Q: Which channels are active in the stage of repolarization? Select one: a. Mechanically gated Na*…

A: The nervous system in the human body consists of brain and fibers in order to coordinate the…

Q: Why is that if A, B, and D neurons were all activated, an action potential in neuron C would not…

A: Because A and D are excitatory neurons and when B is activated it suppresses the activity of A which…

Q: When neurotransmitters contact a muscle cell's receptor proteins, those receptors change their shape…

A: Introduction: Receptors:Receptors are specialised structures that can be found in the cell membrane.…

Q: The membrane potential caused by differences in ions across the plasma membrane of an electrically…

A: All neurons are surrounded by positively charged K+ and Na+ ions and negatively charged Cl- and…

Q: Starting with the action of a neurotransmitter at the postsynaptic end of a neuron, what happens to…

A: Introduction: Neurotransmitters is the chemical messengers our  body can't function without it…

Q: Which is the correct order of the firing of a neuron?

A: Neurons are structural and functional unit of the nervous system. Neurons control the activity of…

Q: Using a stimulus intensity of 65 µA, produce an action potential in the simulated neuron on…

A: Introduction Action potential is a shift in electrical potential caused by an impulse passing across…

Q: Use Figure Q1(b) of an action potential to answer questions (1) until (iv) below. Choose the correct…

A: Nerve impulse refers to an electrical or chemical signal that is transmitted along  a fibre. The…

Q: What is action and resting potential and how does it work in conducting electrical impulses?

A: Nervous system is the complex system in our body which controls the entire body and coordinates the…

Q: a) How does a CAP differ from a single action potential? b) Action potentials are said to be all or…

A: a*A compound action potential (CAP) is a signal from a nerve trunk which is made of  numerous axons.…

Q: Binding of neurotransmitter to the motor end plate leads to depolarization because the…

A: Events  that occur at neuromuscular junction that results in muscle contraction are :  Action…

Q: We know the action potential threshold regulates whether a neuron fires an action potential or not.…

A: Action potential refers to the rapid increase followed by decrease in the voltage or membrane…

Q: Action potentials in heart muscle cells have a prolonged plateau phase caused by ______through…

A: The heart muscle cells has 5 phases in their cardiac action potential ; namely phase 0 , 1 , 2 , 3 ,…

Q: Which bulb shaped structures found at the end of neurons form connections with the dendrites and…

A: Introduction :- A neuron is a nerve cell that serves as the foundation of the nervous system. In…

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.