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प्रश्न
In what ways are puberty and adolescence result of the activity of some glands in the human body?
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उत्तर
Puberty and adolescence are results of the activities of testosterone in males and oestrogen in females. In males during puberty, testosterone secretion is increased resulting in the development of male sex organs and male characters such as deeper voice, moustache, beard and more body hair.
Similarly, in females, oestrogen secretion is increased at the time of puberty resulting in the development of female sex organs and female characters such as feminine voice, soft skin and mammary glands.
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संबंधित प्रश्न
Why are some patients of diabetes treated by giving injections of insulin?
Name the hormones secreted by the given endocrine glands and specify one function.
Pituitary
Name the hormones secreted by the given endocrine glands and specify one function.
Pancreas
Which halogen element is necessary for the making of thyroxine hormone by the thyroid gland?
Which one term of the following includes the other three?
thyroid, ductless gland, thymus, pituitary, ovary
Name the hormones secreted by given endocrine glands :
Parathyroid glands
Which hormone prepares the body for action?
Which hormone gives boys a deep voice?
Which hormone gives girls soft skin?
How do hormones reach the organs they control?
Name the gland which controls the secretion of hormones from the pituitary.
Name the disease which occurs in adults due to the deficiency of iodine in the diet. What is the main symptom of this disease?
Which of the following is a mis-matched pair?
The dramatic changes in body features associated with puberty are mainly because of the secretions of :
(a) estrogen from testes and testosterone from ovary
(b) estrogen from adrenal gland and testosterone from pituitary gland
(c) testosterone from testes and estrogen from ovary
(d) testosterone from thyroid gland and estrogen from pituitary gland
The underactive endocrine gland which causes goitre is :
(a) pancreas
(b) thyroid
(c) adrenal
(d) pituitary
The endocrine gland whose malfunctioning causes diabetes disease is :
(a) pituitary
(b) pineal
(c) parathyroid
(d) pancreas
The gland X which is located just below the brain in the human head secretes a chemical substance Y which controls the development of ones and muscles in the body of a person. Secretion of too little of substance Y as well as the secretion of too much of substance Y by the gland X leads to abnormal development of the body of a person.
(a) Name the gland X.
(b) What is the chemical substance Y?
(c) What happens if too little of substance Y is secreted?
(d) What happens if too much of substance Y is secreted?
(e) Name the system of glands in the human body of which gland X is a part.
The pancreas is made up of two parts A and B. The part A secretes insulin whereas part B secretes pancreatic juice.
(a) Which part is functioning as an endocrine gland? Why?
(b) What is insulin and what effect does it have in the body?
(c) Name the disease which can be treated by giving insulin injection.
(d) What does pancreatic juice contain? Where does pancreatic juice go?
(e) Name the life process in which pancreatic juice is made use of.
Assertion: On attaining puberty, breast size increases and reproductive organs develop in females.
Reason: Ovaries release the hormone progesterone in females.
Name the gland and the hormone secreted by it in scary situations in human beings. List any two responses shown by our body when this hormone is secreted into the blood.
