Chemical Coordination and Integration (NCERT)
286277
Which of the following statement about the hormone action in humans is correct?
1 Binding of a hormone to its receptor leads to the formation of a hormone-receptor complex.
2 FSH stimulates the secretion of estrogen and progesterone.
3 Glucagon is secreted by$\beta $-cells of Islets of langerhans and stimulates glycogenolysis.
4 Secretion of thymosin is stimulated with ageing.