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Cell Bio- Quiz 3

study for final

QuestionAnswer
Ras is a signaling protein which typically becomes activated by: Activated Receptor Tyrosine Kinases
Ion channels: can be opened by a variety of mechanisms and allow ions to flow down their concentration gradients
Steroid hormone receptors: Typically bind their ligand and enter the nucleus to directly regulate gene expression
Notch – Delta ligand association in the specification of cell fates is an example of: Contact-dependent signaling
A major function of phospholipase C is to: In appropriate cell types help transduce the signal of GPCR activation to the release of IP3 and diacylglycerol and, in turn Ca2+.
Activation of a G protein signal cascade requires: Binding of GTP to the G-alpha subunit of the heterotrimeric G protein
Created by: Ash T.
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