QUESTION 6 Which of the following statements is correct? -40 -50 -60- DE F -70- A B C -80 - -90 Time "F" represents an action potential "D" represents membrane repolarization "A" represents a hyperpolarizing graded potential "B" represents a graded depolarization of the cell membrane O O O O Membrane potential (mV)

Q: Which of the following are processes of a neuron? (Select all correct answers) Myelin Axons Nerves…

A: The neuron is the basic structural and functional unit of the nervous system. It consists of a cell…

Q: 1 Which of the following evolutionary adaptations would result in an increase in the speed of…

A: Action potentials are waves that propagate or excite the cell membranes of neurons and muscles in…

Q: Which is/are an electrical signal?

A: The nervous system includes the use of electrical signals for the transmission of impulses from…

Q: Which of these would affect an electrical synapse?

A: Synapses are gaps that separate the terminal buttons of one neuron from receptors of another neuron.…

Q: Questions 1. What was the effect of increasing extracellular K+ to 100 mM on the membrane's…

A: The "resting membrane potential" can be influenced by the concentration of charged ions present, by…

Q: na synapse: O The pre-synaptic cell is always a neuron The post-synaptic cell is always a neuron…

A: A presynaptic cell is a cell that produces action potential and transmutes it to the postsynaptic…

Q: Question 10 Which is/are initiated in the axon hillock? O action potential O graded potential O both…

A: An action potential arises, voltage-gated sodium channels open to a quick depolarization in the…

Q: Review the data generated in your 3D graph. What is the maximum temperature (C) to generate an…

A: Action potential, also known as a neural impulse, is a brief and rapid electrical event that occurs…

Q: What type of ion current could have produced the membrane potential in E? -40 -50 - -60- D E F -70-…

A: Membrane potential is defined as the electric potential difference across the membrane of a cell…

Q: QUESTION 8 What are 'silent synapses? Synapses with only AMPARS in their postsynaptic surface…

A: The site of contact between two nerves is known as a synapse. There are electrical synapses and…

Q: QUESTION 4 In the resting state: voltage-gated Na+ and K+ channels are both closed voltage gated Na+…

A: Voltage-gated ion channels:  a type of transmembrane proteins that results in formation of ion…

Q: Which of the following statements is not correct? +30! -F Membrane Potential (mV) H D. .B -70- A C…

A: The picture is showing the action potential curve. The action potential is generated on receiving…

Q: Which has a stronger/larger change in voltage? action potential O graded potential both graded and…

A: Neuron or nerve cells are cells that act as messengers, they are able to undergo  electrical…

Q: Predict the effect of a substance that inhibits sodium channels from opening. How might this…

A: Introduction The neuron is the small but important functional unit of the central nervous system…

Q: How does synaptic transmission between neurons occur?

A: In a chemical synapse, the pre and post synaptic membranes are separated by a synaptic cleft, a…

Q: 8. Based on this hypothesis, draw how would a membrane conductance plot of this TEA-poisoned neuron…

A: The total number of open channels in the membrane determines the membrane conductance (Gm).

Q: QUESTION 4 If you open an Na+ channel in a typical neuron: Na+ will enter the cell, and the cell…

A: Role of sodium channels in typical neurons.

Q: QUESTION 11 What property of the voltage-gated potassium channels allows K ions to pass? O a. Two…

A: Cell signaling can be both intracellular and intercellular. Intracellular signals are generated by…

Q: QUESTION 13 Which of the following are not criteria for a substance to be detined as a…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: iestion 13 of 18 ad and analyze the statements below: The resting membrane potential (RMP) can be…

A: The concentration of sodium ions is always greater than the extracellular fluid which is present…

Q: When a neuron is in the relative refractory period, a stimulus has to be stronger than normal to…

A: In the phase of the neural action potential cycle known as the relative refractory period, a neuron…

Q: d) Use the graph below to complete the table: +40 0 What channel is open? What channel is closed? A…

A: Neurotransmitters can serve as chemical messengers for ion channels, neurotransmitter mainly causes…

Q: QUESTION 1 Inhibitory local, inhibitory distant, excitatory local, excitatory distant and…

A: Neurons These are nerve cells and are the basic unit of the brain. These cells use electrical and…

Q: The concentration of solutes in Cell X is 13%, but Cell X contains no potassium or magnesium. CelI X…

A: Molecules move across the plasma membrane on the basis of the concentration gradient, from region of…

Q: Question 5 of 18 When a threshold or a minimum magnitude of voltage fluctuation is reached, Select…

A: The neurons are responsible for generation and transmission of nerve impulses. They contain specific…

Q: Describe the role of differential electrical charge across the cell membrane in both non-excitable…

A: Neurons and muscle cells are excitable cells because their membranes are in a polarised state. On…

Q: Identify the molecule which binds calcium ions after they enter the synaptic bouton via VG Ca++…

A: Calcium along with Troponin, Tropomyosin, Myosin brings about muscle contraction and hence is not an…

Q: Question 6 Which of the following statements about graded potentials and action potentials is true?…

A:

Q: Question 4 Place the following events in order of their occurrence. 1. membrane repolarizes 2. K+…

A: Introduction: Voltage-gated Sodium channels move sodium ions through the plasma membrane of cells…

Q: Can you please solve this question and say the correct letter

A: During the action potential, part of the neural membrane (sodium channels) opens to allow positively…

Q: (ECF) of Na" = 142 mM, and K4.6 mM (ICF) of Na = 9 mM and K = 155 mM The membrane has eight (8)…

A: As per our guidelines, we are only allowed to answer the first question. kindly upload the rest of…

Q: QUESTION 4 What is the name of the change in Vm labeled B? +40 +20 Membrane potential difference…

A: Introduction: When 2 electrodes are placed on the surface of the cell and are connected by a…

Q: Question 47 Which of the following statements best describes the movement of molecules in a cell if…

A: Diffusion is the movement of molecules from an area of high concentration to an area of lower…

Q: The arrows, in the figure below, are depicting Membrane D Compartment A Compartment B Compartment C…

A: The movement of materials across cell membranes is referred to as cell transport. Passive and active…

Q: QUESTION 2 Which of the following is a way that an ion can enter or leave the cell? Select all…

A: Ions can enter or leave the cell through::  1) a pump  2) leak channels 3) ligand gated channel 4)…

Q: 12:30 Synapses 2 Question 7 Unanswered Choose the neurotransmitter from the list. A MDMA THC C…

A: We can say that Neurotransmitters are the chemical messengers that transmit electrical signals…

Q: During the absolute refractory period for a neuron, most voltage-gated Na+-channels are in which…

A: Introduction Action potential is a short-lasting event in which the electrical membrane potential of…

Q: Leak ion channels Select the correct response: open in response to small voltage changes. open when…

A: Leaky channels are those which are not regulated by the potential change in the membrane, so, any…

Q: You treat a biological membrane with an enzyme that degrades proteins. Do you expect this treatment…

A: Membrane is the outer covering of cell. It is responsible for transporting the solutes, solvent…

Q: Which of the following is true of nerve impulse conduction? O Saltatory conduction occurs on…

A: Introduction A nerve fiber is a long and a slender projection of the neuron. It conducts the…

Q: The resting membrane potential results when the tendency for. ts attraction to opposite charges…

A: Neuron are essential structure in Nervous system which helps in communication and transfer the…

Q: QUESTION 2 What does the “neuron doctrine" state? |a. Neurites of different cells fuse together to…

A: The neuron doctrine was founded on a sequence of findings that led to the concept of the neuron as…

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.