The specificity of signaling pathways may include which of the following : Group of answer choices the ability to be switched off instantly by hydrolysis of a single phosphate-ester bond flippase-catalyzed movement of phospholipids from the inner to the outer leaflet. the assembly of large multiprotein complexes phosphorylation of target proteins at the hydroxyl of certian amino acid residues. migration of signal proteins into membrane rafts.

Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. there are pros and cons to using either chlorine or uv radiation to kill harmful microorganisms. what is one reason chlorination would be preferred over ultraviolet radiation? a) chlorine only eliminates visible impurities and is ineffective against microorganisms. b) chlorine not only kills bacteria but provides a residual effect on returning microorganisms. c) uv radiation can be used only to treat drinking water and is ineffective in treating waste water. d) ultraviolet radiation is more effective