LAQ for Chapter 6 Adolescence: A Stage of Growth and Change Class 7 Science NCERT
Important Questions1
Q1: Discuss the physical changes that occur in both boys and girls during adolescence.
Answer
During adolescence, both boys and girls experience significant physical changes. Boys typically undergo growth in height, develop broader shoulders, and experience the growth of facial hair, such as moustaches and beards. Their voices become deeper due to the growth of the voice box (Adam’s apple). Girls also grow in height and experience the development of breasts and wider hips. Both boys and girls develop hair in the armpits and pubic regions. Additionally, boys may develop chest and back hair, although this is not universal. Pimples and acne are common for both genders due to increased oily secretions from the skin.
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2
Q2: Explain the concept of puberty and its relation to reproductive health.
Answer
Puberty is a critical stage in adolescence where the body undergoes both external and internal changes that prepare it for reproduction. It marks the transition from childhood to adulthood. In girls, puberty is associated with the start of menstruation, which is a key indicator of reproductive capability. In boys, puberty involves the development of secondary sexual characteristics like facial hair and a deeper voice, signaling the body’s readiness for reproduction. Puberty involves hormonal changes that drive these physical transformations, preparing individuals for adulthood.
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3
Q3: How do emotional and behavioral changes affect adolescents, and what steps can they take for positive growth?
Answer
Adolescents undergo significant emotional and behavioral changes due to the surge in hormones. They may experience mood swings, increased sensitivity, and curiosity, leading to both positive and negative behavior. These emotional changes can lead to stronger feelings of empathy, social engagement, and self-exploration, but may also cause confusion and impulsive decisions. To ensure positive growth, adolescents can engage in various activities like sports, music, or volunteering, which help them channel their emotions productively. Seeking guidance from trusted adults and maintaining healthy social relationships also aid in emotional stability.
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4
Q4: What are the challenges and benefits of maintaining good hygiene during adolescence?
Answer
During adolescence, personal hygiene becomes increasingly important as the body undergoes significant changes. Good hygiene, especially in areas like the armpits, face, and pubic region, helps prevent infections and body odor. Girls, in particular, must maintain menstrual hygiene to ensure comfort and health. While maintaining hygiene can be challenging due to the increase in sweat and body changes, it is essential to prevent skin conditions like acne and other infections. Using sanitary pads during menstruation, regularly washing the face, and wearing clean clothes are simple yet effective ways to maintain hygiene and support overall health.
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5
Q5: Discuss the risks associated with substance abuse during adolescence and how to avoid them.
Answer
Adolescence is a period marked by curiosity and peer pressure, which can make adolescents more susceptible to trying harmful substances like tobacco, alcohol, and drugs. These substances can have serious effects on physical and mental health, leading to addiction, lung damage, memory loss, and other severe health issues. It is important for adolescents to understand the risks of substance abuse and to make informed decisions. They can avoid these risks by saying "NO" to peer pressure, seeking support from family and teachers, and engaging in healthy activities like sports and hobbies. Educating adolescents about the harmful effects of substances and providing a supportive environment helps them make healthier choices.
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6
Q6: Explain the physical and emotional changes that occur during adolescence.
Answer
Adolescence is marked by rapid physical growth, including changes in height, weight, and the development of secondary sexual characteristics. Boys experience deepening of the voice, growth of facial hair, and increased muscle mass. Girls experience breast development, wider hips, and the onset of menstruation. Emotional changes include mood swings, increased sensitivity, and a desire for independence, as adolescents explore their identities and relationships with others.
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7
Q7: How can adolescents manage emotional changes effectively?
Answer
Adolescents can manage emotional changes by engaging in activities like sports, music, or art to channel their emotions positively. Talking to trusted adults, practicing mindfulness, and maintaining a balanced lifestyle can also help manage mood swings and emotional stress.
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8
Q8: What are the key nutritional needs of adolescents, and why are they important?
Answer
Adolescents need a balanced diet rich in proteins, carbohydrates, fats, vitamins, and minerals to support their rapid growth and development. Nutrients like calcium are essential for bone growth, while iron is important for the formation of blood. A healthy diet helps adolescents perform well physically and mentally.
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9
Q9: What is the significance of the menstrual cycle in adolescent girls?
Answer
The menstrual cycle marks the onset of reproductive health in adolescent girls. It indicates the body’s readiness for reproduction and is a natural process that occurs roughly every 28-30 days. The cycle also helps maintain overall hormonal balance and contributes to the girl’s growth and development.
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Q10: Discuss the impact of substance abuse during adolescence and the importance of saying ‘NO’ to harmful substances.
Answer
Substance abuse during adolescence can have long-term physical, mental, and emotional consequences, including addiction, damage to organs, and impaired cognitive development. It is crucial for adolescents to resist peer pressure and make healthy choices, as avoiding harmful substances promotes better health and well-being.
LAQ