Grade 7 : Science (Curiosity) - 6. Adolescence (Set 8)

Question 1

Which of the following describes the typical onset of a 'growth spurt' during adolescence, characterized by rapid increases in height and weight?

Accepted Answer

C) Starts earlier in girls, typically between 10-12 years, compared to boys, who usually start between 12-14 years.

Answer

A) Occurs predominantly in early childhood, around ages 4-6.

Answer

B) Begins uniformly at exactly age 13 for all individuals.

Answer

D) Is a continuous process from birth to adulthood with no distinct 'spurt' phase.

Answer

E) Only affects skeletal growth, not muscle or organ development.

Question 2

Identify the primary male hormone responsible for initiating puberty and the development of secondary sexual characteristics in boys.

Accepted Answer

B) Testosterone

Answer

A) Estrogen

Answer

C) Progesterone

Answer

D) Insulin

Question 3

Which statement best describes emotional changes commonly experienced during adolescence?

Accepted Answer

A) Adolescents often experience mood swings, increased self-consciousness, and a strong desire for independence.

Answer

B) Emotional states become extremely stable and predictable.

Answer

C) There is a complete absence of anxiety or stress.

Answer

D) Emotional sensitivity decreases significantly due to brain maturation.

Question 4

A key secondary sexual characteristic that develops in adolescent girls is:

Accepted Answer

D) Development of breasts

Answer

A) Broadening of shoulders

Answer

B) Deepening of voice

Answer

C) Growth of facial hair

Question 5

Acne is a common skin condition during adolescence. What is its primary cause?

Accepted Answer

C) Increased activity of sebaceous (oil) glands due to hormonal changes.

Answer

A) Excessive intake of sugary foods.

Answer

B) Lack of sunlight exposure.

Answer

D) Insufficient water consumption.

Question 6

Maintaining good personal hygiene is crucial during adolescence. Why is this period particularly important for hygiene practices?

Accepted Answer

A) Increased sweat gland activity and oil production can lead to body odor and skin issues.

Answer

B) Hormonal changes during this time suppress all body odors, making hygiene less critical.

Answer

C) Adolescents are immune to bacterial infections, so hygiene is only for social reasons.

Answer

D) The body's natural defenses are stronger, requiring less attention to cleanliness.

Question 7

Which endocrine gland is often referred to as the 'master gland' because it controls the activity of other endocrine glands, playing a vital role in initiating puberty?

Accepted Answer

B) Pituitary gland

Answer

A) Thyroid gland

Answer

C) Adrenal gland

Answer

D) Pancreas

Question 8

What is a common social challenge or experience for adolescents as they form their identity?

Accepted Answer

D) Increased importance of peer groups and sometimes peer pressure.

Answer

A) Decreased interest in peer relationships.

Answer

B) Automatic acceptance of parental values without question.

Answer

C) Complete isolation from social groups.

Question 9

Why is a balanced and nutritious diet particularly important during adolescence?

Accepted Answer

A) To support the rapid physical growth and development occurring during this period.

Answer

B) Adolescent bodies require fewer calories and nutrients than at other life stages.

Answer

C) Malnutrition has no significant impact on adolescent development.

Answer

D) Only protein intake is crucial; other nutrients are less important.

Question 10

Menarche refers to:

Accepted Answer

C) The first menstrual period in girls.

Answer

A) The onset of facial hair growth in boys.

Answer

B) The deepening of the voice in adolescent boys.

Answer

D) The development of muscle mass in both genders.