When the inhibitory Ga (Gia) protein is mutated and increases its intrinsic GTPase activity, a) Adenylate cyclase become more active b) Gia becomes more active c) Both a and b d) Neither a or b

Q: What are the three steps by which receptor tyrosine kinases typically convey an extracellular signal…

A: Answer :  The three steps involved are :- Step1) Ligand Reduction : The receptors present in the…

Q: Which receptor undergoes clustering and autophosphorylation in response to activation by a signal?…

A:

Q: A mutation in the alpha globin gene that introduced one additional basic amino acid residue in the…

A: 2,3-Bisphosphoglycerate or BPG shifts T-R equilibrium to the left as it only binds to…

Q: Which of the following statements (s) about the ESA is not true

A: Answer is option a

Q: Which of the following statements are true? a) Phospholipase C catalyzes the conversion of PIP3 to…

A: PI3K is a plasma membrane lipid kinase and Phospholipase C is an enzyme that is plasma…

Q: When activated extracellularly, G protein-coupled receptors (GPCRs) initiate which of the following?…

A: GPCRs are a large family of cell surface receptors that respond to a variety of external signals.

Q: Please identify the incorrect statement about hormone signaling: A) Cystolic receptors bind to…

A: The signaling molecules fall into 2 groups  Hydrophilic and Hydrophobic molecules. Hydrophilic…

Q: Which of the following is the most likely result of a mutation in the lac operator that prevents…

A: Lac operon is defined as an operon or set of genes that have a single promoter. The genes present in…

Q: n ligand binds to a ligand gates ce closes e opens ns flow through gate is released

A: # Here I am answering only one question i.e. third . Please send questions one by one in the portal…

Q: Which of the following would result in an INCREASE in BLOOD glucose levels ? choose all of the…

A: Introduction :- Glucose is the final product of digestion of food , that we intake . After complete…

Q: First, you apply a signaling ligand known to activate this Gs protein and track yellow fluorescence.…

A: G protein coupled receptors are the cell surface receptors and transmit signals to their…

Q: 37) The autocatalytic activity of trypsin describes the action of  a. trypsin on procarboxypeptidase…

A: We can digest protein with the aid of the enzyme trypsin. Trypsin breaking down proteins in the…

Q: My boss has given me the purified extracellular portion of the Notch receptor. As Delta/Notch…

A: According to the question, we have to find out the true statement of the most specific purification…

Q: Pancreatic beta cells secrete the protein hormone insulin in response to various signals. Which of…

A: insulin stored in membrane bound vesicles adjacent to the plasma membrane and get released from…

Q: Insulin dependent diabetes is caused by the degeneration of beta cells due to a _________.a) gene b)…

A: Insulin-dependent diabetes is otherwise known as Type 1 diabetes (T1D). This medical condition is…

Q: What do the cytoplasmic domain of a G protein-coupled receptor and the adaptor protein in the RTK…

A: Cells communicate each other by a process known as cell signaling. A ligand molecule binds with the…

Q: B) How many milligrams are there in a 1cc dose of 2% Xylocaine? C)You have 20% acetylcysteine; how…

A: Given:-Answer 2=Formula used :-Percent strength= Solute(gm) / total amountGiven:-Percent …

Q: cell signaling

A: Cell signaling is a process that includes connection by direct contact between the cells as well as…

Q: Question 1 (1 point) Which statement(s) about the lac operon in E. coli is correct? O A) It is an…

A: The lac operon in Escherichia coli (E. coli) is a well-known example of gene regulation in bacteria.…

Q: A GRK inhibitor would have what effect on GPCR inactivation in the presence of a GPCR agonist? (a)…

A: Agonists are substances which mimic the activity of a ligand. The activation of the GPCR triggers a…

Q: Which signaling molecule or molecules bind to a G-protein coupled receptor? (note: there may or may…

A: Receptors are protein structures that transduce signals in cells when a ligand binds to them. The…

Q: Which of the below is likely a substrate of a kinase? A)insulin B)serine C)phosphate D)ADP E)ATP…

A: Enzymes are protein molecules that increase the rate of reaction by decreasing the activation energy…

Q: PDHC is an enzyme complex consisting of 3 different enzymes. Which of the following processes…

A: Pyruvate dehydrogenase complex (PDHC) is the enzyme that converts pyruvate to acetyl Co-A with the…

Q: Compare and contrast GPCR and RTK receptors with respect to (a)structure (especially the…

A: G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs) are major classes of cell…

Q: Which of these amino acids is NOT a common attachment point for sugars in glycoproteins? A)  Gly…

A: The proteins that contain the covalently attached oligosaccharide chains to the amino acid residues…

Q: Researchers have found that a certain signal transduction pathway, illustrated in the figure below,…

A: Signal transduction is the pathway in which there is a relay of the signal that takes place from a…

Q: It is important for the cell to be able to terminate responses, and diminish responsiveness to…

A: Cell signalling helps cells to coordinate and communicate with one another while performing numerous…

Q: In which of the following signaling pathways does ligand binding induce the phosphorylation of the…

A: Intercellular signaling mechanism involves transmission of cellular signals from one cell to…

Q: Which of the following is CORRECT? A) Pyruvate kinase requires Mg2+ for maximal activity. B) A small…

A: Pyruvate Kinase is an enzyme which catalyzes the last step of glycolysis, i.e.  conversion of…

Q: Endothelins are 21-amino acid vasoconstricting peptides produced primarily in the endothelium. They…

A: The membrane channel proteins regulate the inflow or outflow of ions ,molecules etc.  Some…

Q: Which of the following is important in signal transduction triggered by hormones?a)…

A: Signal transduction: Transmission of molecular signals from the exterior to the interior.The signals…

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.