If one homogenizes liver cells, separates the membranes from the cytoplasm, and then adds epinephrine to only the cytoplasmic portion,
A)cAMP will be produced.
B)adenylyl cyclase will be activated.
C)G- proteins will be activated.
D)calcium ions will be released.
E)none of the above

Question

Quizplus · Accepted Answer

Epinephrine requires membrane-bound receptors to exert its effects, and since the membranes are separated from the cytoplasm, none of the signaling pathways can be activated.

If One Homogenizes Liver Cells, Separates the Membranes from the Cytoplasm