Glucagon:
a. is secreted by beta-islet cell of pancreas
b. is a polypeptide hormone
c. has a positive cardiac inotropic effect
d. causes gluconeogenesis in the liver
e. causes glycogenolysis in the liver
a. is secreted by beta-islet cell of pancreas
b. is a polypeptide hormone
c. has a positive cardiac inotropic effect
d. causes gluconeogenesis in the liver
e. causes glycogenolysis in the liver