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Puberty and Human Development

Biology

This content explains the biological and emotional changes that occur during puberty in boys and girls, including physical growth, hormonal influences, the development of secondary sexual characteristics, and reproductive health. It also touches upon nutrition, hygiene, and the dangers of drug abuse.

Puberty Hormones Reproduction
23 Questions Medium Ages 11+ Mar 7, 2026

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About this Study Set

This study set covers Biology through 23 practice questions. This content explains the biological and emotional changes that occur during puberty in boys and girls, including physical growth, hormonal influences, the development of secondary sexual characteristics, and reproductive health. It also touches upon nutrition, hygiene, and the dangers of drug abuse. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 23 questions from the Puberty and Human Development study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What percentage of her full height does a girl reach by the age of 13 years?
  • A 88%
  • B 91%
  • C 95%
  • D 98%
2 What causes the sudden increase in height during puberty?
  • A Increased bone density
  • B Growth of internal organs
  • C Increase in the length of bones and internal body organs
  • D Hormonal changes alone
3 Which hormone is primarily responsible for the development of male secondary sexual characteristics?
  • A Estrogen
  • B Progesterone
  • C Testosterone
  • D Growth Hormone
4 What is the protruding part of the throat in boys called, which develops due to the growth of the voice box?
  • A Larynx
  • B Adam's apple
  • C Voice box
  • D Trachea
5 What are the two types of sexual characters in humans?
  • A Primary and Tertiary
  • B Secondary and Quaternary
  • C Primary and Secondary
  • D Internal and External
6 Which glands produce sweat and oil, and increase their activity during puberty?
  • A Pituitary glands
  • B Thyroid glands
  • C Sweat and sebaceous glands
  • D Adrenal glands
7 What is the term for the transformation of a larva into an adult insect through drastic changes?
  • A Fertilization
  • B Ovulation
  • C Metamorphosis
  • D Gestation
8 What is the average duration of menstruation?
  • A 1-2 days
  • B 3-5 days
  • C 7-10 days
  • D 14-15 days
9 What is the legal age for marriage for girls in India?
  • A 16 years
  • B 18 years
  • C 20 years
  • D 21 years
10 What is the function of the growth hormone secreted by the pituitary gland?
  • A Regulates blood sugar
  • B Controls metabolism
  • C Controls overall development and growth of the body
  • D Stimulates the adrenal glands
11 What disease is caused by excessive secretion of growth hormone?
  • A Dwarfism
  • B Gigantism
  • C Diabetes
  • D Goitre
12 What is the condition called when the pancreas does not produce enough insulin?
  • A Goitre
  • B Diabetes
  • C Dwarfism
  • D Gigantism
13 What are the sex chromosomes in females?
  • A XY
  • B XX
  • C YY
  • D X
14 What is the main function of thyroxine hormone?
  • A Regulates blood sugar
  • B Controls metabolism and heart rate
  • C Stimulates growth
  • D Controls body temperature
15 What does AIDS stand for?
  • A Acquired Immunity Deficiency Syndrome
  • B Acquired Immuno Deficiency Syndrome
  • C Auto Immune Deficiency Syndrome
  • D Acquired Infection Deficiency Syndrome
16 Which of the following is NOT a way AIDS spreads?
  • A Transfusion of infected blood
  • B Use of infected needles for injections
  • C Sharing food with an infected person
  • D Sexual contact with an infected person
17 What is the term for the first menstrual flow at puberty in women?
  • A Menopause
  • B Ovulation
  • C Menarche
  • D Fertilization
18 In boys, shoulders become broader and the chest becomes wider during puberty. What characteristic is more prominent in girls?
  • A Development of Adam's apple
  • B Body muscles grow more
  • C Hips gain weight and the pelvic region becomes wider
  • D Facial hair growth
19 What is the primary sex organ in males that starts producing sperms?
  • A Ovaries
  • B Uterus
  • C Testes
  • D Penis
20 What is the primary sex organ in females that starts producing eggs?
  • A Fallopian tube
  • B Uterus
  • C Ovaries
  • D Vagina
21 What is the role of genes in determining height?
  • A Genes only control hair color
  • B Genes are inherited from parents and control hereditary characteristics like height
  • C Genes have no influence on height
  • D Genes only affect muscle development
22 Why is nutrition rich in proteins and vitamins important during adolescence?
  • A To increase skin oiliness
  • B To help bones, muscles, and other body parts get adequate nourishment for growth
  • C To develop a deeper voice
  • D To prevent acne
23 What is the term for the reproductive phase of life in women that begins at puberty and generally lasts till around 45-50 years?
  • A Adolescence
  • B Childhood
  • C Reproductive phase
  • D Menopause
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