Question

Define hormone? And it's type?

Answer 1

a chemical substance that is released by endocrine glands in trace amounts which regulates the physiological activities of the body .
they can be

peptide hormone, iodothyronines, steroid hormone , amino acid derivatives

Answer 2

NCERT based Answer for Class 11 Biology Students

Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.    

Types of hormones:

Peptides and proteins:  

 These hormones consist of small or long chains of amino acids.

 Like other cellular proteins, these are synthesized on rough endoplasmic reticulum.

 E.g., Insulin, glucagon, Pituitary hormones, hypothalamic hormones etc.   Biogenic amines:

 These are synthesized by modifying amino acid tyrosine.

 E.g., Iodothyronines (thyroid hormones), Catecholamines (epinephrine and norepinephrine).

Steroids:

 These are lipids that are derived from cholesterol.

 These are synthesized on smooth endoplasmic reticulum.

 E.g., Androgens (male sex hormone), estrogens and progesterone (female sex hormones), aldosterone and cortisol (hormones of adrenal cortex).

IF YOU FIND THE ANSWER USEFUL, PLZ MARK IT THE BRAINLIEST.

Visit our website for purchasing XI & XII Complete Syllabus Video Lectures

https://concept-tutorials.teachable.com