Define the following: (a) Exocrine gland (b) Endocrine gland (c) Hormone | Learn NCERT solution | Education portal Class 11 Biology | Study online Unit-22 Chemical Coordination and Integration



Q.1:- Define the following:
(a) Exocrine gland
(b) Endocrine gland
(c) Hormone

 

Answer:-

(a) Exocrine Glands: These glands have ducts. They secreted their secretions through ducts.



(b) Endocrine Glands: Endocrine glands do not have ducts. They directly secrete their secretions.

(c) Hormone: Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts.