Plasma membrane receptors have a hormone recognition domain one or more
Trans membrane domains, and an intracellular domain that generates the intracellular signals.
Cyclic AMP is generated by adenylate cyclase and stimulates phosphorylation throughout the cell by allosteric activation of protein kinase A.
Inactivation of the active epinephrine hormone-receptor complex by phosphorylation desensitizes the receptor.
Answer:
D - None of the above
Explanation:
is about 4.6 billion years old
Vacuole. A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products. In plant cells, vacuoles help maintain water balance.
