“Nervous and hormonal systems together perform the function of control and coordination in human beings.” Justify the statement.
Name various plant hormones. Also give their physiological effects on plant growth and development.
Mention one function for each of these hormones :
(a) Thyroxin
(b) Insulin
(c) Adrenaline
(d) Growth hormone
(e) Testosterone.
What constitutes the central and peripheral nervous systems? How are the components of central nervous system protected?
What are the major parts of the brain? Mention the functions of different parts.
Answer the following :
(a) Name the endocrine gland associated with brain?
(b) Which gland secretes digestive enzymes as well as hormones?
(c) Name the endocrine gland associated with kidneys?
(d) Which endocrine gland is present in males but not in females?
Answer the following :
(a) Which hormone is responsible for the changes noticed in females at puberty?
(b) Dwarfism results due to deficiency of which hormone?
(c) Blood sugar level rises due to deficiency of which hormone?
(d) Iodine is necessary for the synthesis of which hormone?
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