A neuron may receive signals from thousands of synaptic terminals. What determines whether the receiving neuron will respond by transmitting a signal?     a. the concentration of transmitter inside the receiving neuron     b. the summation of excitatory and inhibitory signals received     c. the number of glial cells contact the receiving neuron

Q: The release of a neurotransmitter from a terminal button produces an inhibitory postsynaptic…

A: The neurons, also known as the nerve cells, are responsible for conduction of an impulse. The…

Q: Which of the following sentences is NOT correct? A. Axon can branch B. Afferent neurons are…

A: Axons can divide into many branches called telodendria. At the end of each telodendron is an axon…

Q: Match the description with the statement that best describes the following regions e dendrites +…

A: Neuron:

Q: What ion enters a neuron causing depolarization of thecell membrane?a. sodiumb. chloridec.…

A: A neuron is also called as nerve cell. It is an electrically excitable cell that communicated with…

Q: When the neuron’s membrane is at rest, where are the sodium ions and potassium ions most…

A: Answer is b.) Sodium is mostly inside and potassium is mainly outside.

Q: Which of the following insulates and protects a neuron’s axon, as well as helps speed along…

A: Introduction:- Nervous system consist of a network of specialized cells called neurons (nerve cells)…

Q: A neuron without an axon would be unable to     a. conduct nerve impulses     b. divide     c.…

A: A neuron is a structural and functional unit of the nervous system. It is capable of perceiving any…

Q: Schwann cells are a type of glial cell found in the nervous system. In addition to the conduction of…

A: Schwann cells are the major glial cells found in the peripheral nervous system (PNS). They provide…

Q: What evidence led Sherrington to conclude that transmission at a synapse is different from…

A: The communication between one neuron and the next differs from the communication along a single…

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: Certain cells in the retina respond differently to the direction in which objects move. To…

A: A retinal ganglion cell (RGC) :- is a kind of neuron which is found near the inner surface of the…

Q: Where does collateral sprouting take place? a. In the cell body b. In the axon c. In the dendrites…

A: Collateral sprouting can be defined as the growth of intact axons into the neighbouring denervated…

Q: All the following are the right description of communication between neurons EXCEPT Select one: a.…

A: Neurons communicate with one another by means of electrical impulses called action potential' and…

Q: What happens to the membrane potential of a neuron when an action potential is stimulated?   A.…

A: The generation of action potential occurs muscle and neural cells in case of a sudden variation in…

Q: Why does the velocity of nerve impulse conduction along the nerve decrease when the nerve is…

A: Neurons are the structural and functional unit of nervous system. They are long and branched. They…

Q: Which of the following statements regarding polarized membranes is incorrect? a. There is a…

A: At rest, the ionic composition of the interior and outside of a neuronal membrane varies. As a…

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: 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: What happens to the sodium when the sodium channels open?

A: Sodium channels are basic film proteins that structure particle channels, directing sodium…

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: Axons in the nerves. a. increase the surface area of the cell b. receive signals from neighboring…

A: Axons are the part of nerve cell or neuron.

Q: At rest, a neuron has a lower concentration of sodium than the surrounding fluid. When a neuron…

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

Q: Which one of the following is true of the concentrations of ions inside and outside of an…

A: A neuron, also known as a nerve cell, is an electrically excitable cell that communicates with other…

Q: When an action potential arrives in an axon terminal, synaptic vesicles containing acetylcholine are…

A: Acetylcholine is the main neurotransmitter of the nervous system. It is associated with many…

Q: Where is the action potential generated initiated in the neuron? Select one: a. Nucleus of the…

A: The action potential is defined as the series of electrical changes that occur in membrane potential…

Q: What part of a neuron is responsible for receiving information? a. Axon. b. Node of Ranvier. c.…

A: The nervous tissue is made up of basic units of electrically excitable cells called neurons. The…

Q: Interpret a graph showing the voltage-versus-time relationship of an action potential, and relate…

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

Q: What guarantees that there are unidirectional action potential? A. threshold B. depolarization…

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

Q: Imagine that you decide to make a move. To make this decision, neurons in your brain's cerebral…

A: a ) In which part of the brain is neuron A located ? The neuron A is located in the dorsolateral…

Q: A patch-clamp device is used to a. Study the properties of individual neurotransmitters b. Study the…

A: A flexible electrophysiological method for analysing ion channel function is the patch-clamp method.…

Q: Which part of a neuron transmits an electrical signal toa target cell?a. dendritesb. somac. cell…

A: The nerve cell is also called a neuron, the main part of the neural system. The millions and…

Q: What is myelin? A. Projection on a neuron cell body that is sensitive to stimuli B. Another name…

A: The complex organ system present in the human body that functions in organizing all metabolic…

Q: Predict how a poison that blocks calcium ion channels in the axon terminal would affect synaptic…

A: Poison like Calcicludine is responsible for blocking the calcium ion channels in several excitable…

Q: What determines the effect of neurotransmitter release on the post-synaptic neurons?  a. the size of…

A: Neurotransmitters are chemicals responsible for carrying a signal or an impulse via a synapse. They…

Q: of the following is true of axons?

A: Axons are the distal part of the neuron. There are two types of axons. The myelinated nerve fibres…

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.