#Question id: 1118
#Unit 4. Cell Communication and Cell Signaling
What are scaffolding proteins?
#Question id: 1119
#Unit 4. Cell Communication and Cell Signaling
Phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because they:
#Question id: 1120
#Unit 4. Cell Communication and Cell Signaling
A mutation that knocks out the GTPase activity of a G protein would have what effect on a cell?
#Question id: 1121
#Unit 4. Cell Communication and Cell Signaling
Which of the following provides the best evidence that cell-signaling pathways evolved early in the history of life?
#Question id: 1122
#Unit 4. Cell Communication and Cell Signaling
In endocrine signaling, the signaling molecule.
#Question id: 1123
#Unit 4. Cell Communication and Cell Signaling
Epinephrine can be what kind of signaling molecule?
a. autocrine b. direct contact c. endocrine d. paracrine