41-50 41. inactwate ơmbinding proteins by converting GTP into GDP -_-- b GTPase 42. What do...
Help with these bio questions please.Thank you 1 Secretory protein leave the cell by b Exoctossthey remain in the cytoplasm c) pinocytosis d) receptor mediated 2 If proteins lack a c) Ras d) Signal-recognition particle b) Sorting signal 3 What purpose does the protein coat serve a) Capture molecules to remain in the cytosol b) Shapes the membrane into a phospholipid bilayer membrane c) Provides extra protection and support to the organelles d) none of these are correct cells response...
Which answer is FALSE. The Ras protein, a prototype for all G proteins: A. must bind a GTPase activator protein for hydrolysis of GTP to GDP B. has two critical residues that H-bond with the γ-phosphate of GTP C. holds the γ-phosphate of GTP in the P loop
The series of molecules that are activated form a signalling pathway (Figure 3). Central to the signaling pathway are molecules known as kinases and phosphatases. Protein kinases are molecules that catalyze the addition of phosphate groups to proteins there by activating them. Primarily they add phosphate to either tyrosine residues or serine and threonine residues in proteins. Phosphates are molecules that remove a phosphate group from a protein there by de-activating the protein and resulting in shutting down of the...
Hagrid has purified a protein from unicom sweat and called UNI-1. He has then doned the Unit gone and inserted in rat zygotes (by microinjection) a recombinant construct containing the Uni-1 coding sequence its entire 5 UTR region, covering both the minimal promoter and a series of cutative regulatory als elements. The mutantrats develop glorious, luminous hair. Hagrid has also discovered that the UNI-1 protein binds very tightly to DNA and hypothesizes it is a transcription factor that regulates proliferation...
Question 10-12 10. During the mating process, yeast cells respond to pheromones secreted by other yeast cells. These pheromones bind GPCRs on the surface of the responding cell and lead to the activation of proteins inside the cell. When a wild-type yeast cell senses the pheromone, its physiology changes in preparation for mating: the cell stops growing until it finds a mating partner. If yeast cells do not undergo the appropriate response after sensing a pheromone, they are considered sterile....
QUESTION 4 Which of the following enzymes directly converts phosphorylaseb into the more active form, phosphorylase a? A. CAMP-dependent protein kinase B. phosphorylase kinase C. protein kinase A D. adenylate kinase E phosphoprotein phosphatase The biotin prosthetic group of pyruvate carboxylase is covalently attached to a residue of the enzyme ? A. Vakine B. serine C. lysine D. arginine E. the biotin is attached non-covalently Which of the following serves as the energy source for the metabolic conversion of oxaloacetate...
Easy questions, 30 min timed assignment, please answer ASAP thanks. The amino acid least likely to be involved in nucleophilic a. Alanine. b. Asparagine. 1. and/or electrophilic enzyme catalysis is e. All are equally likely c. Aspartate. d. Arginine Fibrous proteins, such as collagen, have which one of the following properties? a. b. c. d. e. 2. highly soluble in water their hydrophilic residues are directed into the interior of the protein exhibits enzymatic activity serve structural roles in the...
of alanine has a pk of 9.87. What is the 153, The amino group charge on that amino group at pH 7.0 145. Which amino acid serves as the first amino acid at the hN terminus of a newly synthesized protein? (B) methionine (A) alanine 9.80. The side chain of that amino acid includes (A) an amine group (C) a carboxylic acid group. (D) an alcohol 154. A certain amino acid has a pl (or pH, isoelectric point) (D) threonine...
41, NK eells will Presents MHC-I with viral antigen Expresses normal MHC-I with self antigen b. Presents mutated MHC-I d. A & C None of the above e. 42. Answer (a) for TRUE or b) for FALSE to the following statement: C3a and CSb are anaphylatoxins. 43. Answer (a) for TRUE or (b) for FALSE to the following statement: C3 and CS convertases are generated from all complement pathways. 44. Answer (a) for TRUE or (b) for FALSE to the...
please answer all question CSE 110 Introduction to Computer Science 41. An array of size 10, has only nine slots for storing values TRUE FALSE 42. When is the external name of the file used in the program? A. Any time you read or write to the file B. Never C. Only when reading from the file D. When opening the file stream 43. Creating a flow chart when designing a complex algorithm is a waste of time. TRUE 44....