Class 8 Reaching The Age Of Adolescence CBSE Questions & Answers

Class 8 · Reaching The Age Of Adolescence

This is Science Class 8 Reaching the Age of Adolescence CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Human body undergoes several changes during adolescence. These changes marks the onset of
  • A
    Ageing
  • B
    Pre-maturity
  • C
    Menstruation
  • D
    Puberty
    Correct
2
Acne and pimples on face is due to secretion
  • A
    Tear from tear gland
  • B
    Enzymes in mouth
  • C
    Oil glands during puberty
    Correct
  • D
    Bile from liver
3
First menstrual flow is called
  • A
    Ministration
  • B
    Menopause
  • C
    Menstruation
  • D
    Menarche
    Correct
4
The change from larva to adult is called
  • A
    Mutagenesis
  • B
    Gamete genesis
  • C
    Metamorphosis
    Correct
  • D
    Spermatogenesis
5
The disease diabetes mellitus is the result of
  • A
    More secretion of insulin
  • B
    Under secretion of thyroxin
  • C
    Under secretion of estrogen
  • D
    Under secretion of insulin
    Correct
6
The gland which is exocrine and endocrine both is
  • A
    Liver
  • B
    Pituitary
  • C
    Pancreas
    Correct
  • D
    Adrenal
7
During menstruation the level of progesterone in the body is
  • A
    Low
    Correct
  • B
    Very high
  • C
    High
  • D
    Normal
8
Manifestation of male secondary traits in females due to hormonal effects is known as
  • A
    Epitaxis
  • B
    Virilism
  • C
    Muscularity
    Correct
  • D
    Castration
9
Table salt is often iodised for certain areas to prevent
  • A
    Acromegaly
  • B
    Scurvy
  • C
    Goitre
    Correct
  • D
    Rickets
10
Facial hair is some women due to effect of
  • A
    UV radiation
  • B
    Pollution
  • C
    Hormones
    Correct
  • D
    Temperature
11
The development of a new individual from a single gamete without fertilization is called
  • A
    Parthenogenesis
    Correct
  • B
    Parthenocarpy
  • C
    Pragmatism
  • D
    Parentheses
12
What will happen if the thyroid is removed from a tadpole?
  • A
    It will continue in larval stage
    Correct
  • B
    The larva will produce giant frog
  • C
    The tadpole will grow into a dwarf frog
  • D
    The larva will die
13
It is misconception that
  • A
    Sex is determined by vigor of male
  • B
    Sex is determined by choice
  • C
    Male are responsible of sex of child
  • D
    Women are responsible for sex of child
    Correct
14
Ovary and testis release hormone as well as gametes, so they are called
  • A
    Sex gland
  • B
    Gamete gland
  • C
    Master gland
  • D
    Dual glands
    Correct
15
A boy is 9 years old and 120 cm tall. At the end of growth period he is likely to be
  • A
    140 cm tall
  • B
    160 cm tall
    Correct
  • C
    200 cm tall
  • D
    180 cm tall