Chemical Coordination And Regulation Ques 15
15. Chemically hormones are
[2004]
(a) biogenic amines only
(b) proteins, steroids and biogenic amines
(c) proteins only
(d) steroids only
Show Answer
Answer : b
Hints & Solutions
(b) Hormones are chemical messengers formed by endocrine cells. Chemically hormones are of the following types: Aminescomposed of amino group e.g., Melatonin.
Amino acids $\quad-\quad$ eg. thyroxine
Peptides $\quad-\quad$ eg. insulin
Steroids $\quad-\quad$ eg. aldosterone
BETA
