Which if the following is a way to prevent cross-talk between signalling pathways?
Select one:
a. Glycolipids
b. positive feedback loops
c. Scaffold proteins
d. Receptor degradation
Which if the following is a way to prevent cross-talk between signalling pathways? Select one: a....
Which of the following signaling pathways usually use G protein to transduce the signal? Select one: O a. Channel-linked receptor pathways O b. Receptor tyrosine kinase pathways O c. Steroid hormone receptor pathways
One of the most difficult aspects of signaling through pathways that involve proteolysis is keeping track of the names of the components and their functions. Sort the following list of proteins into the Notch, Wnt/B-cetenin, and Hedgehog signaling pathways, list them in he order they function, and select one or more appropriate descriptors that identify their role. Protein A. B-catenin B. Cubitus interruptus )Ci) C. Delta D. Dishevelled E. Frizzled F. Glycogen sythase kinase 3 (GSK3) G. Hedgehog H. iHog...
Which of the following are true regarding homeostasis (select all that apply)? Select one or more: a. The process is determined by the optimal ranges of proteins and enzymes. b. The process involves integration of multiple organ systems. c. The process involves both positive and negative feedback mechanisms. d. The process is found in multicellular and unicellular groups. e. The process involves controlled systems and regulatory systems.
Which One of these is the best way to prevent foreclosure? A). Save at least 1% of your home's purchase price annually B). Refinance as soon as possible C). Use a budget to live within your mean and build savings D). Never accept an adjustable-rate mortgage
The regulators of G protein signalling (RGS) family of proteins are becoming increasingly important in the study of the mechanisms of disease development and represent potential targets for drug development. Which of the RGS protein subgroups acts through early termination of alpha subunit signalling rather than changing the ease with which the alpha subunit is activated? Select one: a. GAPs b. GEFs c. GDIs d. Rho GTPases
Which of the following describe or exemplify metabolotrophic receptors (select all that apply)? Select one or more: a. Protein channels opening and allowing neurotransmitters or ions to flow into the cell b. Salty taste receptor c. Signal transduction cascades that can lead to depolarization events d. Bitter taste receptors e. Internal g-proteins activated by binding of a stimulus or ligand on the cell’s exterior
Which of the following is NOT a function of proteins? Select one: O a. communicating between cells O b. catalyzing reactions O c. providing structure to the cell O d. long term energy storage e. movement and transport within cells
which of the following molecules is part of both the intrinsic and extrinsic pathways of apoptosis? A. Fas receptor B. Apaf-1 C. executioner caspases D. FADD
Cdhl is dephosphorylated by OA. Cyclin B OB. B. PS3 Cdc14 OC. E2F D. DNA synthesis is initiated when the following complex is activated O A. Cdk4-cyclinD complex O B. Cdk6-cyclinD complex Cyclin E-Cdk2 complex OC. o D. CylinA-Cdk2 complex Which of the proteins may have disulphide bonds? Proteins destined to cytoplasm O A. Proteins destined to plasma membrane OB. Proteins destined to Nucleus O C. None of A, B and C OD. Cell surface receptor that transmit the signalling...
The regulators of G protein signalling (RGS) family of proteins are becoming increasingly important in the study of the mechanisms of disease development and represent potential targets for drug development. Which of the RGS protein subgroups acts by decreasing the ease with which the alpha subunit is activated rather than early signal termination? Select one: a. Rho GTPases b. GDIs c. GEFs d. GAPs