Which one of the following is not a second messenger in hormone action?
Calcium
Sodium
cAMP
cGMP
B.
Sodium
Secondary messengers are molecules that relay signals received at receptors on the cell surface such as the arrival of protein hormones, growth factors, etc to target molecules in the cytosol and/ or nucleus. Ca+, cAMP and cGMP are secondary messenger in hormone action.
Which one of the following statement is incorrect?
Glucagon is secreted by pancreas
Androgen is produced by ovary
Thyroxine is secreted by thyroid
Oxytocin is secreted by pituitary
The genetic deficiency of ADH-receptor leads to
diabetes mellitus
glycosuria
diabetes insipidus
nephrogenic diabetes
Goitre can occur as a consequence of all the following except
iodine deficiency
pituitary adenoma
Grave's disease
excessive intake of exogenous thyroxin
