Short Answer Type
Long Answer TypeOn the basis of their chemical nature, hormones are divided into four groups :
1. Amino acid derivatives : These hormones are formed from amino acids e.g. epinephrine, norepinephrine etc.
2. Peptide derivatives : These are of derived from peptide, polypeptide and proteins e.g. insulin, glucagon, pituitary, hypothalamic hormones etc
3. Iodothryonines derivatives : e.g. thyroid hormones.
4. Steroid hormones : These are derived from steroids just as cholesterol e.g. testosterone, progestrone etc.
Short Answer TypeLong Answer TypeExplain the following :
(a) Insulin lowers the blood sugar level.
(b) Hypothalamus and pituitary function as an integrated and coordinated system.
(c)Body growth is greatly accelerated at puberty in the male.
(d) Adrenal medulla and the sympathetic nervous system function as a closely integrated system.
(e) Pituitary gland regulates the reproductive system.
Short Answer Type
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