CBSE Class 7 Science Chapter 06 Adolescence A Stage Of Growth And Change MCQs Set 03

Answer: (A) The voice box grows significantly larger in boys compared to girls, resulting in more pronounced hoarseness

Explanation:
The chapter explicitly states that the voice box grows more substantially in adolescent boys, creating a visible bump called the Adam's apple and causing their voices to sound hoarse. In contrast, the voice box growth in girls is not as pronounced, leading to only slight voice changes. This anatomical difference directly causes the variation in voice changes between genders.

Answer: (B) The wide range of differences among individuals in when and how hair appears is expected and healthy

Explanation:
This statement acknowledges that not all adolescents follow the same timeline or pattern for hair development—some boys may have significant facial hair while others have minimal growth, and the timing varies greatly among individuals. The chapter stresses that these differences are completely normal, not abnormal or concerning.

Answer: (B) Increased oily skin secretions clog pores, which can lead to infections and pimples

Explanation:
• Adolescence causes an increase in oily secretions from the skin
• These oils clog the skin pores
• Clogged pores lead to infections
• Infections manifest as pimples, which is a sign of acne

Answer: (B) Her cycle falls within the normal range of variation mentioned in the chapter

Explanation:
The chapter explicitly notes that while the typical menstrual cycle recurs every 28–30 days, healthy girls may have cycles ranging from 21–35 days. A 35-day cycle falls at the upper end of this normal range, so it would be considered healthy variation rather than a problem.

Answer: (B) Acne is the overall skin condition, while pimples are the small reddish bumps that appear on the skin

Explanation:
The chapter clarifies this distinction directly: 'While acne is a condition, pimples are a manifestation of it.' This means acne refers to the overall condition of oily skin and clogged pores occurring during adolescence, whereas pimples are the visible small reddish bumps that appear on the skin as a result of this condition.

Answer: (B) Ensuring access to menstrual hygiene products and facilities is considered important for girls' health and well-being

Explanation:
The chapter describes multiple initiatives like the Menstrual Hygiene Scheme, RKSK, Suvidha Sanitary Napkin Initiative, and state-level programs. The detailed discussion implies that making menstrual products accessible and promoting hygiene awareness are priorities for supporting adolescent girls' overall well-being and health.

Answer: (B) Secondary sexual characteristics help distinguish males from females but do not directly participate in reproduction

Explanation:
The chapter explicitly states that characteristics like voice changes, facial hair growth in boys, and breast development in girls 'are not directly involved in the process of reproduction. However, these characteristic changes help distinguish males from females.' This clarifies that these features mark sexual maturity and gender differences without being required for reproduction itself.

Answer: (B) Adolescents' natural curiosity and excitement may make them vulnerable to peer pressure regarding harmful substances

Explanation:
When discussing substance abuse, the chapter notes: 'Since adolescence is marked by curiosity and excitement, adolescents might get influenced by such people and try these substances.' This directly links the heightened curiosity characteristic of this age to increased susceptibility to negative influences from peers.

Answer: (B) Either creative pursuits and compassion or harmful behaviors, depending on how emotions are channeled

Explanation:
Table 6.2 demonstrates that mood swings and strong emotions can lead to varied outcomes: they may prompt engagement in music, dance, sports, creativity, innovation, or social work and compassion. The chapter's structure suggests these emotional intensities can be directed toward positive growth and development or potentially negative directions.

Answer: (A) One had a disease while the other's bump was a normal adolescent change

Explanation:
The chapter presents Mary's case where medication and iodine-rich diet were prescribed, suggesting a health deficiency, while Manoj's doctor identified his neck bump as a normal part of growing up. This implies that Mary's bump was a thyroid-related condition (requiring iodine), whereas Manoj's was the Adam's apple—a normal secondary sexual characteristic in adolescent boys.

Answer: (B) Maintaining proper hygiene during menstruation using appropriate products

Explanation:
The chapter dedicates significant discussion to menstrual hygiene, explaining the use of sanitary pads and reusable cloth pads, proper disposal methods, and government initiatives. It states: 'For girls, maintaining proper hygiene during menstruation is essential for both comfort and health.'

Answer: (B) Hormones regulate growth, development, and influence mood and behavior

Explanation:
The chapter explains that hormones are 'certain chemicals produced in our bodies' that 'play a crucial role in regulating various aspects of growth and development, contributing to the proper functioning of the body.' It further notes that 'some hormones influence mood and behaviour,' establishing their broad regulatory role throughout adolescence.

Answer: (B) Understanding emotion-behavior connections helps adolescents make thoughtful choices and respond to situations responsibly

Explanation:
The chapter states: 'Understanding how our emotions influence our behaviour and actions, can help us make better choices and respond to situations thoughtfully.' This emphasis connects emotional awareness to improved decision-making capacity, which is foundational for responsible behavior during adolescence.

Answer: (B) One-time use might lead to repeated use and eventual addiction due to the addictive nature of these substances

Explanation:
The chapter presents a cautionary message: 'Someone who is addicted today, might have started once with just one time!' This illustrates that addiction can develop from initial use, emphasizing the importance of avoiding these substances entirely rather than assuming a single use is harmless.

Answer: (B) Responsible use of digital platforms is part of making adolescence a positive and safe experience

Explanation:
The chapter places cyberbullying discussion within the section 'Making Adolescence a Joyful Experience' under 'Balanced social life.' This positioning indicates that learning to use online platforms responsibly, recognizing harmful behavior, and knowing when to seek adult help are all essential components of healthy adolescent development and positive peer interactions.

Answer: (B) Dispelling myths helps promote girls' health, dignity, and participation in society without unnecessary isolation

Explanation:
The chapter states: 'By encouraging a scientific outlook towards menstruation, we can help society appreciate the need to promote good reproductive health of women and contribute positively towards a healthier lifestyle for women.' This demonstrates that replacing myths with scientific understanding removes harmful social restrictions and supports girls' overall well-being.

Answer: (B) Government recognition and intervention programs acknowledge substance abuse as a significant issue requiring community support

Explanation:
The chapter describes multiple government efforts including the Nasha Mukt Bharat Abhiyaan and a National De-addiction Helpline (14446). The inclusion of these systemic interventions implies that substance abuse among youth is recognized as a serious public health concern requiring organized, widespread prevention and treatment efforts at the government level.

Answer: (B) A nutritious diet including proteins, carbohydrates, fats, vitamins, and minerals is essential for proper adolescent growth and performance

Explanation:
The chapter emphasizes that 'since adolescence is a period of growth and development marked by several changes in the body, a nutritious diet is of utmost importance' and details specific nutrients and their functions. It connects proper nutrition directly to optimal bone growth, strength, energy levels, and overall development during this critical stage.

Answer: (B) Seeking help from parents, teachers, and counselors is a responsible approach to handling various adolescent challenges

Explanation:
Throughout the chapter, especially regarding substance abuse and cyberbullying, the text advises: 'handle it wisely and seek help from parents and teachers' and 'seeking help and support from family and friends, and talking to trusted people, such as parents or teachers' is important. This establishes seeking guidance as a responsible and healthy response to adolescent challenges.

Answer: (B) Curiosity can be channeled positively through varied activities and exploration, contributing to creative and innovative development

Explanation:
The chapter describes adolescence as offering 'heightened curiosity and excitement' that 'give adolescents a new viewpoint towards almost everything around them.' Table 6.2 then suggests positive channels for curiosity through music, dance, sports, and creative activities. This framing positions curiosity as a natural adolescent trait that can fuel positive development when appropriately directed.

Answer: (C) c) Growth of hair in the armpits and pubic region

Explanation:
The chapter explicitly states that both boys and girls experience growth of hair in the armpits and pubic regions. In contrast, facial hair growth leading to moustache and beard, and breast development are gender-specific, as is the significant voice deepening primarily characteristic of boys.

Answer: (B) b) The voice box growing and becoming visible as the Adam's apple

Explanation:
The chapter describes how growth of the voice box in adolescent boys leads to a visible bump in the throat region called the Adam's apple, though it notes this is not noticeable in every individual.

Answer: (B) b) Failing to recognize that repeated use creates addiction, making it difficult to stop

Explanation:
The chapter emphasizes substance abuse occurs when people develop a strong urge to consume harmful substances repeatedly, making it progressively harder to stop. The misconception that one can try something once and quit anytime ignores how addiction develops over time through regular use.