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This is an MCQ based quiz on Reaching the age of Adolescence for grade 8 science.
It covers Puberty, Hormonal Changes, Hormones, Glands, Adulthood.
The belief that the mother is completely responsible for the sex of the child is wrong because the child:
Gets sex chromosome only from the mother.
Develops in the body of the mother.
Gets one sex chromosome from the mother and the other from the father.
Gets sex chromosome only from the father.
For the metamorphosis of tadpoles which of the following elements must be available in water?
Chlorine
Carbon
Sulphur
Iodine
Given below are events that lead to pregnancy and development of the embryo. Which of the following options gives the correct order of sequence in which they occur?
Fertilization of egg, Maturation of egg, Release of egg, Embedding of the embryo in uterus.
Maturation of egg, Fertilization of egg, Release of egg, Embedding of the embryo in uterus.
Fertilization of egg, Embedding of the embryo in uterus, Maturation of egg, Release of egg.
Maturation of egg, Release of egg, Fertilization of egg, Embedding of the embryo in uterus.
Adreanlia hormone is produced by:
Pituitary gland
Thyroid gland
Adrenal gland
Pancreas
The right meal for adolescents consists of:
Chips, Noodles, Coke
Chapati, Dal, Vegetables
Rice, Noodles and Burger
Vegetable Cutlets, Chips and Lemon drink
Reproductive phase in females is form the age of:
10 – 12 years to 40 – 45 years.
18 – 21 years to 30 – 35 years.
21 – 23 years to 40 – 45 years.
25 – 30 years to 40 – 45 years.
Which of the following combination of chromosomes lead to the birth of a baby girl:
XX
XY
X
Y
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:
Thyroid is a large endocrine gland in the neck.
Thyroid gland makes a hormone called thyroxine which contains iodine.
The deficiency of thyroxine hormone causes a disease known as “goitre”.
People are advised to take iodised salt which contains appropriate amount of sodium chloride.
All human beings have pairs of chromosomes in the nuclei of their cells.
22
2
23
46
Adolescence is the period of
5 to 10 years
11 to 19 years
22 to 28 years
30 to 40 years
Children gain height during
Adolescence
Endocrine
Balanced food
Menarche
Adam’s apple is
Enlarged larynx
Mammary glands
Apple of adam
Red apple
Testes secrete
Thyroxin
Estrogen
Testosterone
Iodine
The period of maturity of reproductive organs is called:
Adolescence period
Mensuration
Gestation period
None of the above
Initially girls grow______than boys:
Slower
Faster
Faster and Slower
None of the above
Larynx is called
Voice box
Music box
Respiratory Organ
None of the above.
Progesterone level falls during
Lactation
Gestation
Menopause
Mensuration
The male hormone is
Estrogen
Testosterones
Progesterone
All of the above
Thyroxine is produced by:
Thyroid gland
Pituitary gland
Adrenal gland
Testes
Reproductive age in women starts when their:
Menstruation starts
Breasts start developing
Body weight increases
Height increases
