ENDOCRINE SYSTEM - Hormonal Mechanisms Flashcards
1
Q
How do lipid-soluble hormones act?
A
Cross cell membranes.
Enter nucleus & form hormone-protein complex.
Activate genes, affecting enzyme production.
2
Q
How do water-soluble hormones act?
A
Bind to membrane receptors.
Activate second messengers (cAMP, Ca²⁺).
Trigger enzyme activation inside the cell.
