Bio 312 Final Exam study guide

Ca+2 levels are maintained at low levels in the cytosol by which of the following? - A. Ca+2 ATPase pumps on the ER membrane (SERCA) B. Ca+2/Na+ exchangers on plasma membrane C. Ca+2 ATPase pumps on plasma membrane ***D. all of the above Patterning is best described as which of the following? - A. Ability of a cell or tissue to influence the developmental fate of nearby cells/tissue - can be by diffusible chemical signal or cell contact B. Emergence of characteristic shape and organization of multicellular structures during development C.Progressive specialization of developing cells = acquisition of cell phenotype D. none of the above What type of G protein alpha regulates PLC? - a. G alpha a b. G alpha q c. G alpha b d. G alpha t Paracrine signaling most likely associated with - a. Neurons b. Cancer formation c. Pituitary hormones In which type of cell signaling is the ligand transported in the bloodstream? - a. Paracrine signaling b. Autocrine signaling c. Endocrine signaling d. None of the above. In the uptake of glucose into the bloodstream by glucagon or epinephrine, cyclic AMP (cAMP) is synthesized, activating _____. - e. Protein Kinase A f. Protein Kinase B g. Protein Kinase C h. Protein Kinase D Which of the following are true of the two major classes of Major Histocompatibility Complex proteins? - i. MHC Class I binds fragments from endogenous proteins. j. MHC Class II binds fragments from exogenous proteins. k. MHC Class I binds fragments from exogenous proteins. l. Both a and b.