What is the point A on the graph? Define this term. B) What ions are moving at B on the graph, what direction are they moving and what type of channel is it? C) What ions are moving at C on the graph, what direction are they moving and what type of channel is it? D) If we used a chemical on the nerve at point B that prevented the channels for C from opening what would happen to the action potential?

Q: The Na+/K+ pump is important for ________ in neurons. A) the depolarizing phase of the action…

A: Neurons are the basic structures and functional units of the nervous system. The axon or the…

Q: The Structure of the acetylcholine receptor is shown below:   C. What type of channel is the…

A: Introduction The acetylcholine receptor is an integral membrane protein receptor that is activated…

Q: The neuromuscular junction is similar to synapses in the central nervous system in that: (SELECT ALL…

A: The neuromuscular junction is a specialized synapse that connects a motor neuron to a muscle fiber.…

Q: a) Explain in detail what is occurring at stage A in the graph. (Be specific in terms of what's…

A:

Q: Label the structures in the following diagram of a neuron. (a) ______________ (b) ______________(c)…

A: The neuron is the building block or fundamental unit of the nervous system. It is a relay system of…

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: neuron

A: An action potential is triggered by a graded potential that causes the membrane to depolarize until…

Q: Explain two possible reasons for neuron 2 not firing.

A: An action potential happens when the voltage or membrane potential of the cellular membrane, rapidly…

Q: 1) When threshold (-55 mV) is reached: a) voltage-gated K+ channels immediately open. b) Na+…

A: Step 1 The membrane potential is the transmembrane electric potential difference measured from…

Q: Consider the following graph of an action potential: 60- 30- membrane potential (mV) O -30- -60 line…

A: Action potential refers to the sudden rise and fall of membrane potential across a cellular membrane…

Q: Please answer  3) Which of the following keeps the impulse traveling in one direction down the…

A: The nerve impulse helps in performing the motor and sensory functions of the body. The nerve cells…

Q: exocytosis of GABA.  A. What anatomical part of a pre-synaptic neuron would be affected by this?…

A: Tetanus toxin is an extremely potent neurotoxin produced by the vegetative cell of Clostridium…

Q: Which of the following is true regarding the difference between graded and action potentials? a.)…

A: Action potentials activate neural circuits, which can either promote or inhibit particular bodily…

Q: For a ganglion cell that has a red ON center and Green OFF surround, explain how frequent these…

A: The ganglion cells are the only ones that send out neural signals in the form of action potentials.…

Q: normally, which of the following will happen after a neurotransmitter binds to its receptor?

A: A neurotransmitter is a signalling chemical released by a neuron and transmitted across a synapse to…

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

A: An action potential is a rapid rise and subsequent fall in voltage or membrane potential across a…

Q: myelination of an axon is decreases the speed of actio potential. a) true  b) false

A: The myelinated axon can be compared to an electrical wire (the axon) with protecting material…

Q: saltatory conduction.

A: Saltatory conduction occurs widely in the myelinated nerve fibers of vertebrates. It involves the…

Q: Multiple axons in the peripheral nervous system bundled together by layers of connective tissue form…

A: The nervous system is like the central control unit of the body and controls and responds to stimuli…

Q: What letter(s) represent the starting point of an action potential?

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

Q: what would happen to the action potential if the potassium channels opened before the sodium channel

A: Neurons and muscles have cells that generate an action potential in response to stimuli. These are…

Q: Which statement is true regarding the neuron synapse? A) the preganglion and post ganglionic Neurons…

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

Q: When a neuron is polarized, O a) both positive and negative ions are concentrated inside the neural…

A: The word polarized means that there is a charge difference which is responsible for the occurrence…

Q: In the introduction section the authors wrote “In general, the polarity-dependent mechanisms are…

A: Anodal stimulation is a type of electrical stimulation that involves passing a positive electric…

Q: For a ganglion cell that has a red ON center and Green OFF surround, explain how frequent these…

A: Receptive fields of ganglion cells are divided into two fields, one of which is ON center…

Q: The concentration of ions in the chemical environment surrounding the neurons must be tightly…

A: Neurons are the basic structural unit of the nervous system. The concentration around neurons has to…

Q: 12) when K+ voltage-gated channels open, which of the following occurs? a) depolarization  b) both…

A: In that they repolarize activated neurons to their resting state, voltage-gated potassium channels…

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.