English

In What Ways Are Puberty and Adolescence Result of the Activity of Some Glands in the Human Body? - Science

Advertisements
Advertisements

Question

In what ways are puberty and adolescence result of the activity of some glands in the human body?

Advertisements

Solution

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.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Control and Coordination - Exercise 2 [Page 116]

APPEARS IN

Lakhmir Singh Biology (Science) [English] Class 10
Chapter 2 Control and Coordination
Exercise 2 | Q 46 | Page 116

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Where are hormones made in the human body?


Which halogen element is necessary for the making of thyroxine hormone by the thyroid gland?


Name one gland which acts both as an endocrine gland as well as an exocrine gland.


Which one term of the following includes the other three?
 thyroid, ductless gland, thymus, pituitary, ovary


Write the functions of testosterone and oestrogen hormones.


How does chemical coordination take place in human beings?


Why is the use of iodised salt advisable?


State the functions of  Thyroxine hormones.


Write the names of all the major endocrine glands present in the human body. Which of these glands also function as exocrine glands?


Which hormone controls the amount of glucose in blood?


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 endocrine gland does not occur as a pair in the human body?


Which of the following does not act as an endocrine gland as well as an exocrine gland?
(a) testis
(b) ovary
(c) pituitary
(d) pancreas


Dwarfism results due to:


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 faulty functioning of an endocrine gland can make a person very short or very tall. This gland is :
(a) thyroid
(b) pineal
(c) adrenal
(d) pituitary


There are two similar glands P which are located on top of two similar organs Q in the human body. P are often called the emergency glands and they secrete a hormone R into the blood stream. R is secreted in large amounts when a person is frightened. It brings about temporary changes in the body which allow a lot of substance S from the liver to go into the blood to provide a lot of energy in a very short time. This helps a person to fight back or run away from the frightening situation.

What are P, Q, R and S?


A and B are two pairs of glands that are present in the human endocrine system. The pair A is found only in females, whereas B is present only in males. Glands A make and secrete two hormones C and D, whereas glands B make and secrete only one hormone E. In addition to hormones, Glands A make gametes F, whereas glands make gametes G.
(a) What are the glands A?
(b) What are the hormones C and D?
(c) What are the glands B? Name the hormone E.
(d) What are the gametes F and G?
(e) Which event in the life of males and females is associated with the secretion of the hormones C, D and E?


A squirrel is in a scary situation. Its body has to prepare for either fighting or running away. State the immediate changes that take place in its body so that the squirrel is able to either fight or run?


Assertion: On attaining puberty, breast size increases and reproductive organs develop in females.

Reason: Ovaries release the hormone progesterone in females.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×