Answer the following statements true (T) or false (F)

1. G proteins and Ras are activated when bound to guanosine diphosphate.
2. One common feature with G-protein coupled, enzyme-linked, and growth factor receptors is that their activation leads to activation of protein kinases.
3. Cyclic AMP activates protein kinase C in producing a cell response.
4. If IP3 binds a Ca2+ ligand-gated ion channel in the endoplasmic reticulum then cytosolic Ca2+ levels will rise in the cell.


1. FALSE
2. TRUE
3. FALSE
4. TRUE

Biology & Microbiology

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