Name two elements of the cytoskeleton that are involved in the secretion of presynaptic button neurotransmitters, and indicate what role (function) this element has in the secretion process.

Q: Actin and microtubules have polarity, intermediate filaments have no polarity. What is the main…

A: The cytoskeleton is found within a cell except in the nucleus and it helps maintain the cell's…

Q: The concentration of actin in cells is 50–100 timesgreater than the critical concentration observed…

A: The protein actin forms filaments that provide cells with mechanical support and driving forces for…

Q: Myasthenia gravis is a disease that leads to a marked decrease in the number of acetylcholine (Ach)…

A: Given:- Each quantum of Ach opens only 200 Ach receptor-channels instead of the normal 2000.- Each…

Q: Describe how vesicles are cycled in the presynaptic terminal. Use a diagram if necessary

A: The science of cell structure and function is known as cell biology, and it is based on the idea…

Q: After donating its phosphate molecule to adenosine diphosphate (ADP), which compound helps restore…

A: A great extent of ATP is required for the movement of muscles. So once muscle contraction starts and…

Q: In a rare condition in which the immediate release of neurotransmitter is affected, a mutation in…

A: Ans: Neurotransmitters are the chemical messanger that released at the nerve endings and diffuse the…

Q: The amino acid sequence Leu-His-Arg-Leu-Asp-Ala-Gln-SerLys-Leu-Ser-Ser is a signal sequence that…

A: Signal sequence is a short sequence of amino acid residues generally 16 to 30 amino acids long which…

Q: Would you expect to find motor proteins that move along intermediate filaments? Explain why or why…

A: Intermediate filaments are thicker than actin filaments and thinner than microtubules.

Q: Collagen is produced as procollagen and then processed to collagen extracellularly. What would…

A: The major structural protein found in the skin, as well as the various kinds of connective tissues…

Q: Actin filaments have polarity. The plus end is the end to which subunits are added more rapidly, or…

A: Under the plasma membrane, actin filaments form a network that provides mechanical support, defines…

Q: You are investigating a lysosomal storage disease and you discover that newly synthesized lysosome…

A: When normally a protein is destined to be targeted to lysosome, then the proteins are modified in…

Q: What_t_-SNARE protein changes from a _trans_ to a _cis_ state to facilitate the transformation of a…

A: The process of neurotransmitter release from a neuron involves the fusion of a vesicle containing…

Q: What are the features of the NMJ/endplate?

A: Nervous system is a type of body system which is involved in control and coordination. It is…

Q: What are the three types of coated vesicles involved in membrane trafficking. Name three types and…

A: The three types of coated vesicles involved in membrane trafficking are clathrin-coated,…

Q: a) Give the two main membrane proteins. b) State a function each of the mentioned protins.

A: Hi! Thanks for your question. But as you have posted multiple questions, I am answering the first…

Q: You’ve setup an in-vitro experiment to measure molecular motors and have an irreversibly binding ATP…

A: Molecular motors in biological systems are molecular machines that harness energy from diverse…

Q: Gaucher disease, caused by the inhibited digestion of lipids, results in the accumulation of fatty…

A: Gaucher disease is an inherited disorder caused by an enzyme deficiency. It is characterized by an…

Q: Describe the proteins involved in membrane fusion and neurotransmitter release that are located on…

A: During the neurotransmitter release, several SNARE protein complexes are involved with synaptobrevin…

Q: One of your classmates is planning to study endocytosis at neuronal synapses for their senior…

A: Exocytosis is the fusion of a plasma membrane-bounded vesicle to the cell surface which is followed…

Q: One of the characteristics of botulinum toxin (the cause of 'botulism') is a very specific protease…

A: Neurotransmitters  A chemical that secreted by the ends of nerve fiber into the synaptic cleft.

Q: Nerve growth factor (NGF) is a water-soluble signalingmolecule. Would you expect the receptor for…

A: NGF stands for nerve growth factor. It help to maintain and growth of nerve cells. These are…

Q: Receptor tyrosine kinase’s catalyze the phosphorylation of target proteins which means they are…

A: Receptor tyrosine kinase are important part of signal transduction pathway. Kinase name is given to…

Q: Sickle-cell hemoglobin (HbS) differs from normal human adult hemoglobin (HbA) by a single mutational…

A: In sickle cell anemia, which is a genetic disease, there is a single nucleotide mutation. This…

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.