Reaching the Age of Adolescence MCQ Questions Class 8 Science Chapter 10
NCERT MCQ Questions for Class 8 Science Chapter 10 Reaching the Age of Adolescence. Reaching the Age of Adolescence MCQ Questions with Answers from Class 8 Science.
Reaching the Age of Adolescence MCQ Questions Class 8 Science Chapter 10
Reaching the Age of Adolescence Multiple Choice Questions with Answers Class 8 Science Chapter 10 PDF is available.
1.) The girls and boys , both reach their maximum height by the age of ____ years ?
a) 18
b) 20
c) 15
Ans. a) 18
2.) The larynx begins to grown at ____ ?
a) Adolescence
b) Puberty
Ans. b) Puberty
3.) The growing voice box in boys can be seen as a protruding part of the throat called ____ ?
a) Larynx
b) Adam’s apple
Ans. b) Adam’s apple
4.) During ____ the secretion of sweat glands increases ?
a) Puberty
b) Adolescence
Ans. a) Puberty
5.) Boys begin to grow facial hair at ____ ?
a) Puberty
b) Adolescence
Ans. a) Puberty
6.) The features help to distinguish the male from the female , are called ____ ?
a) Primary sexual characters
b) Secondary sexual characters
Ans. b) Secondary sexual characters
7.) The changes which occur at adolescence are controlled by _____ ?
a) Hormones
b) Chromosomes
Ans. a) Hormones
8.) The growth of facial hair of the boys is caused by _____ hormone ?
a) Estrogen
b) Testosterone
Ans. b) Testosterone
9.) Pancreas secretes ____ ?
a) Thyroxine
b) Insuline
Ans. b) Insuline
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10.) Thyroid produces ____ ?
a) Thyroxine
b) Insuline
Ans. a) Thyroxine
11.) Adrenals produce _____ ?
a) Thyroxine
b) Adrenalin
Ans. b) Adrenalin
12.) Testosterone is the _____ hormone ?
a) Male
b) Female
Ans. a) Male
13.) Estrogen is the _____ hormone ?
a) Male
b) Female
Ans. b) Female
14.) All human beings have _____ pairs of chromosomes in the nuclei of their cell ?
a) 20
b) 18
c) 23
Ans. c) 23
15.) Male has _____ chromosomes ?
a) Two Y
b) One X & one Y
c) Two X
Ans. b) One X & one Y
16.) Due to the stoppage of producing of ____ hormones causes Goitre ?
a) Insulin
b) Thyroxine
Ans. b) Thyroxine
17.) Due to the in sufficient producing of ____ hormones causes Diabetes ?
a) Insulin
b) Thyroxine
Ans. a) Insulin
18.) In a frog , metamorphosis is controlled by ____ hormone ?
a) Insulin
b) Thyroxine
Ans. b) Thyroxine
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