Class 8 Science MCQ Reaching The Age Of Adolescence

Question :Which of the following combination of chromosomes lead to the birth of a baby boy:
(a) XX
(b) XY
(c) X
(d) Y

Question :Adreanlia hormone is produced by:
(a) pituitary gland
(b) thyroid gland
(c) adrenal gland
(d) pancreas

Question :Whea the sperm contributes a Y-chromosome to the egg (ovum) at fertllisatin than the zygole would develop into a:
(a) femaict,hild
(b) malechild
(c) either female or male child
(d) none of these

Question :Which of the following Is incorrecl:
(a) Girls have high pitched voice
(b) Boys have a deep voice
(c) The voice box of girls is larger than that of boys
(d) The voice box in boys can be seen as a wouudmg part of the throat called Adam’s apple

Question :The changes which occur at adolescence are controlled by:
(a) enzymes
(b) balanced diet
(c) hormones
(d) none of these

Question :All human beings have pairs of chromosomes in the nuclei of their cells.
(a) 22
(b) 2
(c) 23
(d) 46

Question :The unfertilised egg always has X chromosome.
(a) two
(c) four
(b) one
(d) none of these

Question :‘Goitre’ is a disease of
(a) adrenal gland
(c) pancreas
(b) thyroid gland
(d) none of these

Question :Which or ht ronowing proIdes iron to our body:
(a) leafy vegetabks
(b) citrus
(c) meat
(d) all of these

Question :Which of the following b balmced dirt:
(a) icc-cream and cold drink
(b) meat and egg
(c) roti/rice, dal, vegetables
(d) none of these

Question :The legal age for marriage of girls in our coaltry is:
(a) 21 years
(b) 18 years
(c) 20 years
(d) 16 years

Question :AIDS is teased by a dangerous:
(a) virus HIV
(b) virus VIH
(c) protozoa
(d) bacteria

Question :Hormones reaches to different parts:
(a) with lymph
(b) by ducts
(c) with blood
(d) none of these

Question :In our body hormones are formed in:
(a) endocrine glands
(b) exocrine glands
(c) kidneys
(d) none of these

Question :Which of the following endocrine gland is called master gland:
(a) pituitary gland
(b) adrenals glands
(c) thyroid gland
(d) pancreas

Question :Which gland secretes insulin:
(a) thyroid gland
(b) pancreas
(c) adrenals
(d) thymus gland

Question :Which of the following controls sugar in blood:
(a) sex hormone
(b) pancreas
(c) growth hormone
(d) insulin

Question :Which of the following disease is causes by deficiency of iodine:
(a) goitre
(b) diabetes
(c) scurvy
(d) beri-beri

Question :Which of the following is secreted by endocrine glands:
(a) harmones
(b) enzymes
(c) digestive juices
(d) all of the above

Question :Which of the following hormones is secreted by pituitary gland:
(a) insulin
(b) thyroxine
(c) growth
(d) adrenalin

Question :The necessary element for the formation of thyroxine hormone is:
(a) iron
(b) iodine
(c) calcium
(d) magnesium

Question :Which of the following gland secretes thyroxine hormone:
(a) adrenal
(b) thyroid
(c) pituitary
(d) pancreas

Question :Which of the following hormone helps at the time of excitement, tear, tension etc:
(a) adrenalin
(b) insulin
(c) growth
(d) thyroxine

Question :Fertilisation is called
(a) Fusion of sperms and eggs
(b) To produce sperm
(c) To produce eggs
(d) All of these

Question :The period of maturity of reproductive organs is called.
(a) Adolescene period
(b) Mensuration
(c) Gestation period
(d) None of the options

Question :Initially girls grow _____ than boys.
(a) Faster
(b) Slower
(c) Faster and slower
(d) None of the options

Question :There are__ __ pairs of chromosome in human cell.
(a) 23
(b) 46
(c) 22
(d) All are wrong

Question :Menarche is:
(a) beginning of menstrual flow
(b) stoppage of menstrual flow
(c) attachment of embryo with the uterus
(d) none of these

Question :Acne and pimples on the face is due to secretion ofa)bile from liver
(b) Oil glands during puberty
(c)Enzymes in the digestive tract
(d)Tear from tear glands

Question :Testosterone is a hormone found in human ___a)Children
(b)males and females
(c)Females only
(d) Males only

Question :The first menstrual flow is calleda)Menstruation
(b)Mensuration
(c) Menarche
(d)Menopause

Question : Menopause occurs at the age ofa)10-12 years in boys
(b)45-50 years in men
(c)10-12 years in girls
(d) 45-50 years in women

Question :The period of life, when the body undergoes changes, leading to reproductive maturity, is calleda)childhood
(b) adolescence
(c)Grown up
(d)Old age

Question :The human body undergoes several changes during adolescence. These changes mark the onset of
(a) Puberty
(b)Prematurity
(c)Post adolescence
(d)ageing

Question :Adam’s apple is prominent ina)Boys of any age
(b)Adolescent girls
(c)Girls of any age
(d) Adolescent boys

Question :Larynx is also called
(a) Voice box
(b)Sound box
(c)Black box
(d)All of the above

Question :When a sperm containing Y chromosome fertilizes an egg with X chromosome, the zygote develops into a _____ childa)Female
(b)Either a male or female
(c) Male
(d)No child

Question :The change from larvae to adult is calleda)Metabolism
(b) Metamorphosis
(c)Metastasis
(d)Morphology

Question :The male hormone is
(a) Testosterone
(b) Estragon
(c) Projestrone
(d) All of these

Question :The number of chromosomes are present in human cell.
(a) 23 pairs
(b) 22 pairs
(c) 24 pairs
(d) 24 pairs

Question :Puberty age in females is
(a) 10 – 12 years
(b) 12 – 14 years
(c) 8 – 10 years
(d) More than 14 years

Question :Menopause is:
(a) beginning of menstrual flow
(b) stoppage of menstrual flow
(c) attachment of embryo with the uterus
(d) none of these

Question :‘Puberty’ is the age at which the:
(a) reproductive system stops
(b) reproductive system becomes functional
(c) person starts talking
(d) none 6 these

Question :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 feels hungry all the time
(d) taste buds are well-developed in teenagers.

Question :Thyroxin produced by
(a) Thyroid gland
(b) Pituitary gland
(c) Adrenal gland
(d) Testes

Question :The egg is
(a) Female gamete
(b) Egg gamete
(c) Egg gamete and female gamete
(d) None of the options

Question :Larynx is called
(a) Voice box
(b) Music box
(c) Respiratory organ
(d) None of the options

Question : There are __ __ pairs of chromosome in human cell.
(a)23
(b)46
(c)22
(d)All are wrong

Question : Which of the following hormones is secreted by pituitary gland:
(a) insulin
(b) thyroxine
(c) growth
(d) adrenalin

Question : Progesterone level falls during
(a) Menopause
(b) Lactation
(c) Gestation
(d) Menstruation

Question : Which one is another terms for teenage is
(a) Maturity
(b) Puberty
(c) Adolescence
(d) Thyroid

Question : Which or ht ronowing proIdes iron to our body:
(a) leafy vegetabks
(b) citrus
(c) meat
(d) all of these

Question : The male hormone is
(a)Estragon
(b)Projestrone
(c)Testosterone
(d)All of these

Question : Which of the following will occur in females at puberty?
(a) Ovulation
(b) Enlargement of breasts
(c) Broadening of hips
(d) All of these

Question : In girls, secondary sexual characteristics develop between
(a) 9 and 11 years.
(b) 11 and 14 years.
(c) 15 and 18 years.
(d) 19 and 21 years.

Question : Hormones reaches to different parts:
(a) with lymph
(b) by ducts
(c) with blood
(d) none of these

Question : Which chromosomes determine the sex of an individual?
(a) Autosomes
(b) Allosomes
(c) Plasmid
(d) Giant chromosomes

Question :The voice of girls becomes high pitched at puberty.

Question :Humans become capable of reproduction after puberty sets in.

Question :Pancreas secretes thyroxine.

Question :AIDS is caused by HIV virus.

Question :The unfertilised egg is called foetus.

Question :The egg cells are larger than sperms.

Question :In human females, one mature egg is produced every four weeks by each of the ovaries.

Question :At puberty, the larynx beings to grow.

Question :The mother is responsible for the sex of her child.

Question :Metamorphosis in insects is controlled by insect hormones.

Question :Chips and tinned snacks have adequate nutritional value.

Question :Adrenalin hormone is necessary for growth of a person.

Question :Deficiency of hormone insulin causes ‘diabetes’.

Question :A female has two X chromosomes.

Question :The egg cells are larger than sperms.

Question :In human females, one mature egg is produced every four weeks by each of the ovaries.

Question :The sex chromosome of the father determine the sex of an unborn baby.

Question :The voice of girls becomes high pitched at puberty.

Question :The unfertilised egg is called foetus.

Question :At puberty, the larynx beings to grow.

Question :Humans become capable of reproduction after puberty sets in.

Question :Pancreas secretes thyroxine.

Question :AIDS is caused by HIV virus.

Question :The mother is responsible for the sex of her child.

Question :Metamorphosis in insects is controlled by insect hormones.

Question :Chips and tinned snacks have adequate nutritional value.

Question :Adrenalin hormone is necessary for growth of a person.

Question :Deficiency of hormone insulin causes ‘diabetes’.

Question :A female has two X chromosomes.

Question :The sex chromosome of the father determine the sex of an unborn baby.

Question :Protruding voice box in boys is called ___________________

Question :Glands without ducts are ___________________

Question :Endocrine gland attached to brain is ___________________

Question :In male, the sex chromosomes consists of one X and one ___________________ chromosome.

Question :Hormones are produced by ___________________.

Question :The master gland in the body is ___________________

Question :___________________ disease is caused due to the deficiency of hormone thyroxine.

Question :Female hormone is ___________________

Question :Male hormone is ___________________.

Question :Another term for teenage is ___________________

Question :___________________ is the term for changes at adolescence.

Question :___________________ gland secretes thy roxine

Question :___________________ is the secretion of endocrine glands.

Question :___________________ is the first menstrual flow at puberty.

Question :___________________ is stoppage of menstruation.

Question :Voice box is ___________________

Question :Pancreatic hormone is ___________________

Question :Hormones reaches through blood stream at ___________________

Question :Fertilised egg gets embedded in the ___________________ for further development.

Question :Thyroid and adrenals secrete their hormones when they receive orders from the ___________________ through its hormones.

Question :In male, the sex chromosomes consists of one X and one ___________________ chromosome.

Question :Hormones are produced by ___________________.

Question :Glands without ducts are ___________________

Question :Endocrine gland attached to brain is ___________________

Question :The master gland in the body is ___________________

Question :___________________ disease is caused due to the deficiency of hormone thyroxine.

Question :Protruding voice box in boys is called ___________________

Question :Female hormone is ___________________

Question :Male hormone is ___________________.

Question :Another term for teenage is ___________________

Question :___________________ is the term for changes at adolescence.

Question :___________________ gland secretes thy roxine

Question :___________________ is the secretion of endocrine glands.

Question :___________________ is the first menstrual flow at puberty.

Question :Voice box is ___________________

Question :Pancreatic hormone is ___________________

Question :Hormones reaches through blood stream at ___________________

Question :___________________ is stoppage of menstruation.

Question :Fertilised egg gets embedded in the ___________________ for further development.

Question :Thyroid and adrenals secrete their hormones when they receive orders from the ___________________ through its hormones.