In general, a signal transmitted via phosphorylation of a series of proteins A) brings a conformational change to each protein. B) requires binding of a hormone to a cytosol receptor. C) cannot occur in yeasts because they lack protein phosphatases. D) requires phosphorylase activity. E) allows target cells to change their shape and therefore their activity.
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Step 1: Phosphorylation of a series of proteins results in the addition of an inorganic phosphate group to each protein. Show more…
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Phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because: a. they are species specific. b. they always lead to the same cellular response. c. they amplify the original signal manyfold. d. they counter the harmful effects of phosphatases. e. the number of molecules used is small and fixed.
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