Weaver mice have difficulty maintaining posture and moving normally. This defect has been attributed to a defect in some potassium channels that allows Na+ as well as K+ to pass through the channel. Increasing the sodium permeability will have what effect on the membrane potential of the neuron? The membrane potential will become more negative O There will be no change in membrane potential There is not enough information to answer this question The membrane potential will become less negative

Q: Action potentials and graded potentials both… A) Propagate long distances through neural structures,…

A: Answer : A) Propagate long distances through neural structures, without attenuation in their…

Q: During a typical action potential in a nerve, which of the following is happening?  Multiple…

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

Q: Patch clamping is a technique to record the electrical potential or to measure currents generated by…

A: Tetrodotoxin is an extremely robust poison (toxin) discovered in particular within the liver and sex…

Q: Which refers to the time during which a neuron can undergo an action potential? O the resting…

A: Nervous system is one of the most important system of our body it send and receive information via a…

Q: Which of the following would you predict would happen if you limited the amount of ATP to a neuron…

A: We have Na+/K+ ATPase channel that uses ATP to translocate 3 Na+ outside and 2 K+ outside which…

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: What event triggers an action potential?a. Opening of sodium channelsb. Opening of delayed potassium…

A: 1- Opening of delayed potassium channels 3-High concentration of negative ions outside the cell.…

Q: 1.2 Reducing extracellular [Na+] in the solution surrounding a squid giant axon would be expected to…

A: Squid giant axon - It is very large, it's function is, in squids it control part of water jet…

Q: 2. a) sensation). the doctor decides to check the resting potential of her sensory nerves. The…

A: Answer--

Q: Repolarization of an axon during an action potential is produced by a. inward diffusion of Na+. b.…

A: A stage of action potential in which the cell undergoes a decrease in voltage, is known as…

Q: receptors have their neurotransmitter binding site and ion channel are components of different…

A: Answer 1: the receptors have their neurotransmitters binding site and ion channels are components of…

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: The toxin of the velvet sea snake prevents the sodium channels from inactivating. Which of the…

A: When Voltage gated Na+ channels open it leads to depolarization of the neuron i.e resting membrane…

Q: Which precedes an action potential traveling down the axon of a neuron? A. Neurotransmitters bind to…

A: The right Answer is A

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: the normal extracellular Na+ concentration is 140 mM and you replace Na+ such that the extracellular…

A: Given The extracellular sodium is changed from 140mM to 14mM

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

A:

Q: Which of the following is a correct statement of the all-or-none principle? Select one: U a. A…

A: The action potential is known to have full response always that means there is no concept of weak or…

Q: Which two ideas about ion channels of a neuron at its resting potential are true? O ion channels are…

A: The movement of ions across the plasma membrane is responsible for maintaining the resting potential…

Q: What membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of…

A: Ans:- the option is (c)-the voltage gated sodium chennel.

Q: When the action potential begins, Na+ gates open, allowing Na+ to cross the membrane. The charge…

A: Membranes potential can be defined as the change in electric potential due to changes in the amount…

Q: Which of the following best describes saltatory conduction? A process in myelinated axons where the…

A: In contrast to the slow continuous process of depression extending down an unmyelinated axon,…

Q: The all-or-none principle, associated with the action potential, states that once membrane potential…

A: Neurons are responsible for the electromagnetic conduction of the signals in the form of stimulus.…

Q: Which of the following statements about A-type K+ channels are true? They include Kv4 and Kv1.4…

A: K+ channels are layer proteins that permit for the quick and particular development of K+ particles…

Q: If a neurotransmitter binds to a receptor that opens potassium channels, the result is ... Group of…

A: Postsynaptic potentials refer to the alteration in the postsynaptic terminal’s membrane potential of…

Q: You add an inhibitor to the voltage-gated K+ channel and then stimulated a nerve cell to cause an…

A: The nerve cells or neurons shows electrical properties that helps the neurons to conducting the…

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: During a relative refractory period of an action potential   A. Another action potential can be…

A: Action potential (AP) is the mode through which a neuron transports electrical signals. It is…

Q: On what part of the neuron are NT receptors typically located?  If the activated NT receptors cause…

A: The correct option is C (action potential).Neurotransmitter receptors are located on the surface of…

Q: Which of the following can increase the likelihood of a neuron generating an action potential?…

A: Genesis and conduction of Action potential The axoplasm inside the axon of a nerve contain high…

Q: ) Neurons cannot respond during the absolute refractory period because: a) the concentration…

A: The absolute refractory period starts immediately after the initiation of the action potential and…

Q: A very high amount of 1 2 channels to open. There ions and calcium ions, as well as an efflux of 4…

A: Nerve impulses are transmitted through the neurons. The electrical charge distribution across the…

Q: Which of the following is true about the conduction of action potentials?

A: Generation of Action potential occurs in the axon. The action potential is generated due to opening…

Q: Which of the following is FALSE about action potentials?      At resting potential, there are more…

A: Change in the membrane potential are brought about by changes in ion movement across the membrane.…

Q: The made-up drug leakyhose degrades myelin resulting in myelin becoming more porous and therefore a…

A: The longest cell in the human body is called the neuron or nerve cell. This cell transmits the…

Q: What happens to the resting membrane potential if the extracellular K' concentration is increased.…

A:

Q: One EPSP from neuron A depolarizes the initial segment of a neuron by +2 mV, one EPSP from neuron B…

A: 4) Mechanism of nerve conduction : • The action potential in pre synaptic neuron reaches its…

Q: ing of potassium (K+) channels on dendrites of a postsynaptic neuron will have what effect?  A)…

A: Opening and closing of ion channels on the membrane leads to the Hyperpolarisation and…

Q: Which of the following statements about hyperpolarization are correct? Pick all that apply to what…

A: Hyperpolarisation is an event that occurs in neurons during the action potential.

Q: Why does an action potential flow in only one direction? because voltage-gated sodium channels…

A: Neurons or nerve cells are the fundamental units of the nervous system. They are electrically…

Q: "The local anesthetic, novacaine, used by most dentists blocks voltage-gated Na+ channels. Why would…

A: Thank you for the question : Answer : The effect of the local anesthetic novacaine blocks voltage…

Q: The resting voltage of the cell membrane: O is a property of the cell O is generated by…

A: Cell membrane It refers to the biological membrane that is involved in the separation of the inside…

Q: Many neurotransmitters trigger depolarisation by binding their receptors and gating an ion channel…

A: Answer: Neurons are like electrical devices, having many channels sitting in the cell membrane(the…

Q: The axon hillock of a neuron reaches the threshold of excitation and the membrane potential becomes…

A: Potential for action is a fast reversal of membrane potential in which the membrane potential shifts…

Q: neuron transmits signals from the PNS to the central nervous system. a. Interneuron 16. d. Ganglion…

A: Note: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Q: You prepare a squid giant axon and inject it with a tiny volume of solution containing 0.1 M NaCl…

A: At initial condition the radioactive Na+ and K+ are present inside of the cell. We, use blockers of…

Q: Sense of smell, also known as olfaction, is the ability to perceive and interpret odours. When a…

A: Olfaction is the process of sense of smell in air done by the nostrils. In humans olfaction is done…

Q: What happens when a resting neuron’s membranedepolarizes?(A) There is a net diffusion of Na+out of…

A: The membrane potential is the net voltage on the membrane of a neuron. The difference in the charge…

Q: If a biologist wished to cause a depolarization event in a neuron, what action would achieve this…

A: An action potential (AP) appears when the membrane potential of a particular cell location rapidly…

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.