What is a synaptic vesicle? It is a membrane-bound package of neurotransmitters located in the pre-synaptic cell. It is a package of excitatory ions located in the post-synaptic cell. O It is a package of inhibitory ions located in the post-synaptic cell. It is an organelle that stores calcium.

Q: Which of the following families of actin-binding proteins promote actin filament polymerization?…

A: Actin filaments are made up of a long spiral chain of similar actin proteins. Actin filaments, like…

Q: When a neurotransmitter-filled vesicle is in the primed position, which t-SNARE connect is critical…

A: Synapses are structures or junctions that facilitate the passing of an electrical or a chemical…

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: You spray an insect with common insecticide that destroys the ability of acetylcholinesterase to…

A: Disclaimer: Since you have asked multiple question, we will solve the first question for you. If you…

Q: synaptobrevin

A: Synaptobrevin is a snare protein(synaptic protein) that is located on cell vesicles which mediates…

Q: Therefore, a muscle cell at rest is said to be __________________ and has membrane potential.

A: An abrupt, quick, transient, and propagating shift in the resting membrane potential is referred to…

Q: Neuropeptides :-a- are synthesized in the synaptic knobsb- consist of small moleculesc- interact…

A: Neuropeptides are protein molecules released by neurons that helps them communicate with each other.…

Q: How can the resistance (Rm) of a membrane be increased? Increase conductance by opening ion channels…

A: A membrane resistance (Rm) is a measurement of how challenging it is for ions to cross the membrane.…

Q: GABA is a neurotransmitter that binds to ligand-gated chloride (Cl-) ion channels, causing Cl- to…

A: GABA is a neurotransmitter that plays an important role in the central nervous system. It is…

Q: How does a voltage clamp work?

A: Information is communicated through neurons. They send information between different parts of the…

Q: Imagine that a neuron has 5X higher sodium outside than inside and 10X higher potassium inside than…

A: The movement of the cell constituents inside and outside of the cell is mediated by  selectively…

Q: When a membrane is at rest, which channels are open? O Voltage-gated calcium channels O…

A: Neurons are the basic unit of the nervous system. The membrane potential of the neuron is…

Q: A neurotransmitter binds to a receptor on a muscle cell and causes sodium channels to open. This is…

A: Facilitated diffusion is a passive transport of ions, which means this process does not need energy…

Q: Which of the following structures could NOT be a post-synaptic cell? Group of answer choices a bone…

A: Introduction: A specific cell that carries signals and messages from and to the brain and various…

Q: The action potential is a voltage pulse at one location on a cell membrane. How does it get…

A: Neurons are the basic structural and functional unit of the nervous system. Neurons have three…

Q: Neurotransmitters released by pre-synaptic vessels are received by what type of proteins in the…

A: Neurotransmitters are chemical messengers that help to transmit neural signals from one neuron to…

Q: Which statement best describes the interaction that occurs as a result of the bindi ligand to a…

A: Option- B

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: A synaptic vesicle has a diameter of 40 nm. The concentration of a neurotransmitter inside this…

A: The nerve cells of the nervous system are called neurons, Inside these nerve cells there lies a…

Q: Which part of the phosphatidylcholine molecule would be the most non-polar (hydrophobic)? the…

A: Phosphatidylcholine is a type of phospholipid with choline acting as the head group. It is the major…

Q: Two different groups of researchers are studying alternative methods of treating Parkinson's…

A: Parkinson's disease is a neurodegenerative disease that affects the motor system of the central…

Q: The image below shows a presynaptic cell releasing neurotransmitters that are being bound by the…

A: Neurotransmitters refer to the chemical messengers that are responsible for the transmission of…

Q: D Question 9 Which of these are not a criterion for being a neurotransmitter? O It must be readily…

A: Introduction : Neurotransmitters are the substances that are released from the neuron terminal to…

Q: Which of the following ion channels are always sensitive to small changes in electric charge?…

A: Transport through the cell membrane is important for cells to supply nutrients, ions, and other…

Q: When protein membrane receptors are activated, what usually happens? The receptors open and close in…

A: Question - When protein membrane receptors are activated, what usually happens?  The receptors open…

Q: Which part of the phosphatidylcholine molecule would be the most negatively-charged? the fatty acid…

A: Phosphatidylcholine – it is a phospholipid, a major constituent of the cell membranes. Phospholipids…

Q: The purpose of gap junction is   Question options:   to provide intercellular communication…

A: Gap junctions develop when a set of six membrane proteins called connexins form an elongated,…

Q: What do neurons use to expel sodium into the extracellular space in order to maintain a strong…

A: Neurons are the basic unit of the brain. They are cell that passes information. Neurons cells are…

Q: that Causes 18 gates been opened to cause this?

A: Hyperpolarization :It is the movement of a cell membrane potential to a more negative value. When a…

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: Which of the following is a correct functional match for CGMP? A Opens calcium ion channels Smooth…

A: B-Smooth muscle relaxation cGMP is a typical controller of particle channel conductance,…

Q: Which of the following is the correct statement regarding ion channels?   Physical deformation of…

A: Ion channels, integral membrane proteins, facilitate the passage of ions through pore formations.…

Q: Botulism is a disease that was associated to eating out of cans that had been contaminated by a…

A: Introduction: The muscle contraction occurs when a neural signal reaches the neuromuscular junction…

Q: In the central nervous system, the neurotransmitter, serotonin, controls the emotions and eating and…

A: The nervous system involves the transmission of signals or impulses from one part of the body. This…

Q: what will happen if the membrane channels opened and allowed a negatively charged ion such as…

A: NOTE: Options are numbered as 1, 2, and 3. Also, option 1 must be "action potential is less likely…

Q: Once a pre-synaptic neuron has stopped firing, all of the following will stop the local potential in…

A: Once the neurotransmitters have been released and have bound to postsynaptic receptors,…

Q: The resting membrane potential in neurons is described as an electrochemical gradient. You have…

A: Resting membrane potential (RMP) is defined ss the potential inside the cell when the cell is in…

Q: 1. Shown below are figures of the closed and open structures of the voltage gated potassium channel…

A: Introduction Voltage-gated K+ channels, also known as Kv channels, are found in almost all animal…

Q: In the nervous system, there are both electrical synapses, which pass electrical signals quickly and…

A: The nervous system is responsible for the control and coordination of the parts of the body. The…

Q: How can molecules pass through a closed gate such as in ligand-gated channel protein? Group of…

A: Cell is the basic structural and function unit of life.

Q: Which two proteins are essential for vesicle fusion at the synapse? v-snare, t-snare…

A: Synapses are the points where information is passed as signals from one neuron to other. By this…

Q: Which neuron component correctly corresponds to an element of an electrical circuit? Extracellular…

A: Introduction :- A protective layer or sheath called myelin develops around nerves, including those…

Q: Dopamine is a neurotransmitter produced by the nervous system that is involved in the…

A: The nervous system, also known as the neural system, is a complex network of neurons that are…

Q: How would you define the term "membrane potential." The ability of a cell to perform its specialized…

A: The plasma membrane is the membrane that separates the cytoplasm or interior of the cell from the…

Q: When nerve cells contact each other, they form adherens junctions (AJs) at the point of contact. The…

A: Nerve cells transmit signals from one to another. When they do this, adheren junctions are formed…

Q: What events happen in the presynaptic membrane? 1. Vesicle release neutransmitters through…

A: A synapse is a gap between the membranes of two nerve fibres ( neuron) . These membranes are called…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.