How is KA channel activated? What is role of this channel in the action potential?

Q: Q. Explain the three main signal transduction mechanisms for GPCRs

A: G-protein-coupled receptors (GPCRs) are transmembrane proteins that transmit signals from the…

Q: Vm mV Or -10 -2아 -30- -40 50 -60 10min OUABAIN

A: Introduction Ouabain is a toxic plant extract that acts as a cardiac glycoside that blocks the…

Q: Please describe & explain the main parts of the pacemaker and action potential observed in the SA…

A: Action potentials are the means of signal transmission generated and conducted by neurons in an…

Q: Rho, Rac, and Cdc42 are three different GTPases that regulate cytoskeletal dynamics. We've…

A: Introduction and overview GTPases are a large family of proteins that function as molecular…

Q: Answer for the Number 5 question . Thank you. no need for a long explanation.

A: GPCR (G protein coupled receptor) is a cell surface receptor that binds to ligand molecules such as…

Q: Answer and explain it properly

A: Serine proteases are enzymes that cleave peptide bonds in proteins, in which serine serves as the…

Q: Agonist Lipid bilayer G G - ATP active CAMP PDE AMP Phosphorylation of target proteins PKA active…

A: The integral membrane proteins that are used by cells to convert extracellular signals into…

Q: Speed and efficiency matter. Acetylcholine is rapidly destroyed by the enzyme acetylcholinesterase.…

A: As a neuronal signal propagates and excites or stimulates a cellular membrane, the neurotransmitter…

Q: The Cori Cycle. Before vigorous exercise (at rest) the level of blood lactate is at its normal level…

A: Exercises and physical activity increase the energy demand and the metabolic rate of the body.…

Q: What function of the microtubule motor proteins dynein and kinesin is blocked by the use of…

A: Dynein and kinesin are two types of proteins that are essential for cell movement. Dynein is…

Q: Cell signaling. The ER doctors gave a patient an injection of epinephrine to increase his heart…

A: Receptors are considered to be macromolecules that take part in signaling within and between cells.…

Q: Answer for Number 2 question. Thank you. no need for a long explanation.

A: Group of cells called glands. There are 2 types of glands exocrine glands and endocrine glands…

Q: In the following reaction, a molecule of ATP bound to the enzyme transfer a phosphate to fructose…

A: Correct Option: b. The change in the activation energy barrier is greater than 27.6…

Q: Draw an oxygen binding curve of Hb at a pH of 7.4 and another curve where all 2,3 BPG has been…

A: Hemoglobin is a heterotetrameric oxygen transport protein that is found in red blood cells or…

Q: For each of the 4 regulatory states of the lac operon shown in the following diagram, answer the…

A: Genes active in lactose synthesis are found in E. coli's lac operon. When lactose is present but…

Q: You measure the membrane potential and find that it does not change from time X to time Y. However,…

A: Membrane potential also known as transmembrane potential is the difference in electric potential…

Q: If the membrane voltage is clamped at +60 mV. What direction does a Ca2+ ion move? inside the cell…

A: The cells of the body mainky the excitalbe cells like nerve cells and muscle cells have a property…

Q: 21). It is Review coupled reactions Me useful and customary to express the number of GTP, UTP, or…

A: Gluconeogenesis is the process that involves generation of glucose from non-carbohydrate sources…

Q: Why would doctors not want to just completely inhibitb-secretase in a patient with Alzheimer’s…

A: Alzheimer's disease is a neurodegenerative disease, which starts slowly and gets worse with the…

Q: 1H. please help me in detail. For molecular Mechanism of ATP versus GTP selectivity of adenylate…

A: ATP is the major energy carrier in any cell where as GTP is selective for only a few pathways.…

Q: Frog muscle cells and the solution bathing the cells contain ions at different concentrations. The…

A: The concentrations of Na+, Ca2+, K+, and Cl- are shown in the following table. Temperature = 25…

Q: A signaling pathway is show below answer the following questions related to this pathway. What is…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Q2. Why do we perform concentration-response curves ra of agonist and testing it against a single…

A: Concentration response curve basically shows strength. Now agonist induce drug binding to target…

Q: Explain why it makes sense for the PDH complex in liver to be active when dephosphorylated.

A: Pyruvate Dehydrogenase Complex(PDH) is a multienzyme complex that is involved in pyruvate…

Q: Ssighme Create a diagram which illustrates the typical signalling mechanism of action of each of the…

A: Cell signalling is a process in which cell signals are transmitted from one cell and reach to other…

Q: he greater length of AB42 makes it more likely to aggregate and form plaques. 642 has a lower pl…

A: Primary structure of a protein is formed by various amino acids linked together by peptide bonds.…

Q: Cell communication .a) There are six main principles for transmitting a chemical signal between…

A: Cell communication is the process in which extrinsic signals are sensed and responded to. These…

Q: Select all that apply. What is true about the conformational aspects of coupling? The proton…

A: An organic compound called ATP is adenosine 5’-triphosphate (C10H16N5O13P3). It forms due to the…

Q: PKA signaling can be turned off through the activation of A. A protein phosphatase B. CAMP O C.A…

A: In biology, to perform everyday functions properly the cells require to communicate with each other.…

Q: You discover a new type of cell and when you measure the resting membrane potential of this new cell…

A: Neurons are a type of cells and a functional unit of the nervous system which is used to transmit…

Q: Consider the nature of cell signaling pathway outcomes. Which of the following is a benign mutation…

A: The correct option is C Results in increased p53 Activity. explanation  In a normal cell there are…

Q: Which of the following amino acids are likely to occur in a signal peptide or transmembrane domain,…

A: Region with higher than 20 amino acids residue having high hydropathy index is  found to be…

Q: What charge does a protein molecule have? O neutral O positive O negative O The charge depends on…

A: Diffusion and osmosis are 2 processes that depict the movement of substances from higher…

Q: IGNALS AND TARGETS. Listed below are sample polypeptides/proteins with their signal…

A: Proteins formed on the endoplasmic reticulum and free ribosomes are sorted to their destination.

Q: Protein kinase A (PKA) is Options O Completely inhibited by cyclic AMP O Allosterically activated by…

A: Protein kinase A is a group of enzymes in cell biology that are activated by cyclic AMP levels in…

Q: In hepatocytes, glucagon signaling leads to release of select one, which leads to the activation of…

A: Hepatocytes are responsible for regulating blood glucose level. When the blood glucose level…

Q: The signal hypothesis, proposed by Gunter Blobel, was eventually shown to be: O correct, but it only…

A: correct, even more signals exist than just what Blobel studied

Q: 1 Unoccupied receptor does not interact with G, protein. Extra- collular space -Hormone or neuro-…

A:

Q: solve it within 10 mins I'll give you multiple upvote

A: Second messengers are specific molecules that transmit the information of a signal from the cell…