We know the action potential threshold regulates whether a neuron fires an action potential or not.  What sets this threshold?  Is the action potential threshold the same for all neurons?  Why or why not?

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: What will happen when ligand gated sodium channels open on a neuron? What will enter/exit the cell?…

A: Ligand-containing ion channels bind to neurotransmitters and are open to responding to ligand…

Q: Which of the following describes a threshold potential?   A brief reversal of the charge difference…

A: Answer. All cells have an electrical potential difference, or membrane potential, across the plasma…

Q: If you inhibit the closing of sodium channels what do you predict the effect on neuronal function…

A: Action potential in neuron is the direct consequence of voltage gated sodium channel. During the…

Q: What are the two kinds of electrical responses neurons can generate and which one acts like a…

A: Introduction: The types of cells that make up the nervous tissues are called neurons. They are…

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: Consider the circuit from Q5 (above). We want to add another inhibitory neuron to this circuit to…

A: An action potential is a rapid change in the electrical potential across the membrane of a neuronal…

Q: Given that a neuron's action potential moved at a speed of 105 m/sec, would you expect this neuron…

A: Neuron is the nerve cell present in the nervous system. It transmits the impulse from brain to body…

Q: Let’s say the synapses of a neuron’s dendrites are filled with glutamate-gated channels which, when…

A: EPSP refers to the excitatory postsynaptic potential which is generated as a result of the…

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: Fluorescent FM dyes partition reversibly into biological membranes without penetrating through them.…

A: FM dyes are fluorescent compounds used in the examination of the process of recycling vesicles.…

Q: Why does neuronal function require the voltage-gated K+ channels to open more slowly than the…

A: Voltage-gated channels are specialized proteins that are essential for the generation and…

Q: The changes in membrane potential when a neuron is transmitting information is called .....…

A:

Q: List the series of events at the membrane that generate an action potential, including the…

A: The objective of the question is to understand the sequence of events that occur at the membrane to…

Q: - In terms of Na and K ion gradient /movement - what causes the action potential (positive charge…

A: The Na+ K+ ion gradient refers to the concentration difference of sodium (Na+) and potassium (K+)…

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

A: Ans: Chloride (Cl- )

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: ou observe that a neuron treated with a metabolic inhibitor which prevents ATP generation still can…

A: Neurons are the basic unit of the nervous system. The lipid bilayer is selectively permeable and is…

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: 2) Draw a typical neuron and the relative ion concentrations (high or low) for Na+ and K+ inside and…

A: Neurons are specialized cells responsible for transmitting information throughout the nervous…

Q: When a neurotransmitter binds with receptors at the membrane, it may cause sodium channels to open.…

A: The endogenous chemicals which makes neurons to communicate with each other throughout the body are…

Q: After an action potential has been initiated, there are two processes that prevent the membrane from…

A: The generation of action potential is very much important characteristics in nerve cells that is…

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: Distinguish between excitatory post-synaptic potential (EPSP) and inhibitory post-synaptic potential…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: If neurons fire action potentials when membrane potential reaches -50mV, how would hyperkalemia…

A: Hyperkalemia is a medical condition where there is an excess of potassium ions (K+) in the…

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: The ions that most contribute to the voltage properties of the neuronal membrane are: chloride,…

A:

Q: Which of the following actions is paired INCORRECTLY with its numbered position on the graph? 501 30…

A: Channel proteins aid in the entrance and departure of substances within the cell. Channel proteins…

Q: Which of the following would occur if you were measuring the voltage of a motor neuron that was…

A: They are regulated by inhibitory neurotransmitters such as glutamate and GABA. They prevent an…

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: Which is the most likely outcome? ✓ [Choose ] Both interneurons fire action potentials The…

A: These are the types of Graded Potential. EPSPs are excitatory signals which causes depolarisation of…

Q: In the autoimmune disease multiple sclerosis, a person's immune system attacks and destroys the…

A: Introduction The nervous system is a major regulatory, regulatory, and communication system in the…

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…