CBSE Class 7 Science Adolescence: A Stage of Growth and Change (Class 7 NCERT New) Quiz 3

1. What is the need for balanced diet in adolescents?

A Balanced diet in adolescents is to provide protein, fat, vitamins, carbohydrates in the required amount B Balanced diet in adolescents is to provide protein, fat, vitamins, carbohydrates in equal amount C Balanced diet in adolescents is to provide more vitamins, carbohydrates compared to proteins and fats D Balanced diet in adolescents is to provide more proteins and fats compared to vitamins and carbohydrates

2. What describes menstruation in females?

A The release of the fertilized egg from the uterus that occurs once in a month. B The release of the unfertilized egg from the uterus that occurs once in 28-30 days.

3. What change occurs in females at puberty?

A Development of large voice box B Development of hair on face and chest C Region below the waist becomes wider D Shoulder broaden

4. How sebaceous glands affect the human body during puberty?

A The persons have acne on their skin due to increased activity of sebaceous glands. B The persons have acne on their skin due to decreased activity of sebaceous glands. C The persons have rashes and other skin infections due to increased activity of sebaceous glands. D The persons have rashes and other skin infections due to decreased activity of sebaceous glands.

5. Which option correctly defines adolescence in girls?

A They attain reproductive maturity 2 or 3 year earlier than boys. B They attain reproductive maturity 11 or 13 year earlier than boys C They attain intellectual maturity 5 or 10 year earlier than boys D They attain intellectual maturity 13 or 18 year earlier than boys

6. When does adolescence begin and end respectively?

A begins at the age of 9 and ends at the age of 14 B begins at the age of 11 and ends at the age of 18 C begins at the age of 15 and ends at the age of 11 D begins at the age of 18 and ends at the age of 13

7. How are the hormones secreted by the endocrine gland cause changes in the body at puberty?

A It increases the muscle mass that helps attain more strength. B It reduces the metabolism increasing the food intake. C It stimulates changes in different parts of the body. D It doubles the capability of body parts to function.

8. The following question consists of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below: Assertion- change in height, voice, in body shape are the sign of puberty. Reason- the several changes are observe during adolescence are called puberty.

A Assertion and reason both are correct statement and reason is correct explanation for assertion. B Assertion and reason both are correct statement but reason is not correct explanation for assertion. C Assertion is correct statement but reason is incorrect statement. D Assertion is incorrect statement but reason is correct statement.

9. Which of the following statements is correct regarding health care during puberty?

A Outdoor games must be played during menstrual cycle as well. B Protein: Fat ratio in food must decrease. C Only boys should play outdoor games. D Fast foods must be avoided.

10. A student reads that the three methods of transmission of AIDS are through infected needles, through sexual contact, and from infected mother to baby. From the given statement, he can conclude that AIDS is transmitted through

A vectors B blood C contact D liquid media