Class 8 Science Chapter 10 MCQ

Class 8 Science Chapter 10 MCQ (Multiple Choice Questions) of reaching the Age of Adolescence updated for academic session 2021-2022. All the MCQs are important for the school unit tests as well as terminal or periodic exams.

Practice here MCQ online test with answers and explanation of each questions to prepare the chapter and become confident in all topics of chapter 10 of class 8 science. These MCQ quiz covers the complete chapter 10 reaching the Age of Adolescence from CBSE class viii science.

Class 8 Science Chapter 10 MCQ for 2021-2022

Class: 8Science
Chapter: 10Reaching the Age of Adolescence
Contents:MCQ Online Test with Explanation

MCQ Tests with Answers for Class 8 Science Chapter 10


The belief that the mother is completely responsible for the sex of the child is wrong because the child:

[A]. Gets sex chromosome only from the mother.
[B]. Develops in the body of the mother.
[C]. Gets one sex chromosome from the mother and the other from the father.
[D]. Gets sex chromosome only from the father.

Structures present in a cell which is responsible for determination of the sex of a baby is:

[A]. Cytoplasm
[B]. Cell membrane [C]
[C]. Nucleus
[D]. Chromosome

Secondary sexual characters not present in male:

[A]. Growth of facial hair
[B]. Hair grows under the arms
[C]. Hair grows in the region above thighs
[D]. Development of breasts

Priya is writing some statements, choose the correct statement and help her:

[A]. In a frog, metamorphosis is brought about by thyroxine hormone.
[B]. The production of thyroxine hormone requires the presence of iodine in water.
[C]. All the amphibians need thyroxine hormone to undergo metamorphosis and change from larva into adults.
[D]. All the above.


Payel is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Payel wants to take help from you:

[A]. Thyroid is a large endocrine gland in the neck.
[B]. Thyroid gland makes a hormone called thyroxine which contains iodine.
[C]. The deficiency of thyroxine hormone causes a disease known as “goitre”.
[D]. People are advised to take iodised salt which contains appropriate amount of sodium chloride.

Adolescents should be careful about what they eat because adolescents should be careful about what they eat because:

[A]. Proper diet develops their brains
[B]. Proper diet is needed for the rapid growth taking place in their body
[C]. Adolescents feel hungry all the time
[D]. Taste buds are well developed in teenagers


Some of the problems brought about by early marriage in girls. Choose the incorrect one(s):

[A]. The girls younger than 18 years of age are not prepared for motherhood.
[B]. Early marriage and motherhood cause health problems in the mother.
[C]. Early marriage and motherhood reduces the chances of higher education for girls.
[D]. None of the above.

In a quiz competition, you are asked a question where you have to choose the statement which is/ are correct?

[A]. A gland which secretes its product into a duct is called an exocrine gland.
[B]. Sweat glands and sebaceous glands or oil glands are exocrine glands.
[C]. A gland which does not have a duct and secretes its product directly into the blood stream, is called an endocrine gland.
[D]. All the above.

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. The bulge at the front of throat or neck in grown up boys is called “Adam’s Apple”.
[B]. The smaller voice box in girls gives shrill voice or high-pitched voice to the girls.
[C]. The pimples and acne are formed due to the increased activity of sebaceous and sweat glands present in the skin.
[D]. All the above.

Which of the following statement is or are correct?

[A]. A young human being below the age of full physical development is called a child.
[B]. A mature human being who is fully grown and developed is called an adult.
[C]. The transitional period of physical and mental development which occurs between childhood and adulthood, is called adolescent.
[D]. All the above.

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