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
Secondary sexual changes occurs
  • A
    Along with external changes
  • B
    Only in males
  • C
    After menopause
  • D
    During puberty
    Correct
2
A Human female reaches menopause around the age of
  • A
    15 years
  • B
    50 years
    Correct
  • C
    70 years
  • D
    25 years
3
Starting of first menstrual cycle is termed as
  • A
    Puberty
  • B
    Menstruation
  • C
    Menopause
  • D
    Menarche
    Correct
4
In the male human, sperm contain 22 pairs of autonomes and
  • A
    A pair of Y-chromosome
  • B
    One X-chromosome
  • C
    A pair X- chromosome
  • D
    One Y-chromosome
    Correct
5
Sex hormones are released by
  • A
    Testes only
  • B
    Testes and pituitary gland
  • C
    Ovaries and adrenal gland
  • D
    Testes and ovaries
    Correct
6
Which of the following is a exocrine gland?
  • A
    Adrenal
  • B
    Pancreas
  • C
    Pituitary
  • D
    Salivary gland
    Correct
7
The
  • A
    Female
  • B
    Information not enough
  • C
    Male
    Correct
  • D
    Bisexual
8
Menstrual cycle is controlled by
  • A
    Food habit
  • B
    Physical activity
  • C
    Time duration
  • D
    Hormones
    Correct
9
The gland whose development is affected by iodine is
  • A
    Thyroid
    Correct
  • B
    Pancreas
  • C
    Liver
  • D
    Thyroxin
10
Voice is high pitched in
  • A
    Aged person
  • B
    Adult man
  • C
    Boys
  • D
    Females
    Correct
11
Which hormone controls metamorphosis in frogs?
  • A
    Insulin
  • B
    Thyroxin
    Correct
  • C
    Adrenal
  • D
    Growth hormone
12
Menopause occurs in females at the age of
  • A
    45-50 years
    Correct
  • B
    55-60 years
  • C
    50-55 years
  • D
    37-42 years
13
Increase in size of breast and oily skin are
  • A
    Secondary sexual characters of girls
    Correct
  • B
    Secondary sexual characters of boys
  • C
    Primary sexual characters of girls
  • D
    Primary sexual characters of boys
14
In menstrual cycle ovum is released during
  • A
    Any time
  • B
    Beginning
  • C
    Midway
    Correct
  • D
    End
15
A woman is not able to produce child after menopause as
  • A
    Gamete is not released
    Correct
  • B
    Ovary degenerate
  • C
    Uterus degenerate
  • D
    Unable for copulation