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प्रश्न
What is the term used for chemical secretions of endocrine glands responsible for changes taking place in the body?
उत्तर
Hormones regulate the changes that take place in the body. Endocrine glands directly secrete chemical substances known as hormones into the blood, transporting them to a particular target site or organ. They regulate many processes in the body, such as growth, development, behaviour and reproduction, and are required in very small quantities.
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संबंधित प्रश्न
List changes in the body that take place at puberty.
Prepare a table having two columns depicting names of endocrine glands and hormones secreted by them.
Write notes on Adam’s apple.
During puberty, the region below the waist become wider in _______.
There is a sudden increase in the height of both boys and girls during puberty.
Making use of disposable napkins or tampons may increase the chances of infections.
Making use of disposable napkins or tampons may increase the chances of infections.
List out the changes which occur during puberty.
Mention any two features of each that are seen in boys and girls which distinguish them from each other at puberty.
During adolescence, the body of boys and girls undergoes certain changes. Given below are few of those changes.
- Broad shoulders
- Wider chests
- Wider region below waist
- Development of muscles
- Development of mammary glands
- Growth of facial hair
- Acne and pimples on face
- Development of sex organs
- High-pitched voice
- Growth of pubic hair
Categorise these changes into those that occur in boys and those that occur in girls and fill in the table given below.
Body changes during adolescence.
| Boys | Girls |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
| ______ | ______ |
