Question

Exercises
1) What is the term used for chemical secretions of endocrine glands responsible for changes taking place in the body?
2) Define adolescence.
3) What is menstruation? Explain.
4) List changes in the body that take place at puberty.
5. Prepare a Table having two columns depicting names of endocrine glands and hormones secreted by them.
6) What are sex hormones? Why are they named so? State their function.
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Answer 1

Answer:

1. Hormones is the term used for chemical secretions of endocrine glands responsible for changes taking place in the body.

2. Adolescence the period following the onset of puberty during which a young person develops from a child into an adult.

3. Menstruation is a monthly cycle that appears in a woman's womb. Every month, the uterus prepares itself to recieve the egg. If it doesn't, then it sheds it's lining with the blood vessels.

4. Some changes that take place during puberty are:

• Change in body shape
• Change in voice
• Change in height
• Increased activity of oil glands
• Development of sex organs.
• Reaching mental, intellectual and emotional maturity.

Answer 2

Answer:

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1.Hormones is the term used for chemical secretion of endocrine glands responsible for changes taking in the body. Hormones are chemical messengers that transport signals from one cell (or gland) to another cell (or gland).

2.Adolescence is a transitional stage of physical and psychological development that generally occurs during the period from puberty to legal adulthood. Adolescence is usually associated with the teenage years, but its physical, psychological or cultural expressions may begin earlier and end later.

3Summary. Menstruation, or period, is normal vaginal bleeding that occurs as part of a woman's monthly cycle. Every month, your body prepares for pregnancy. If no pregnancy occurs, the uterus, or womb, sheds its lining. The menstrual blood is partly blood and partly tissue from inside the uterus.

4..Answer: Following changes take place in the body during puberty:

Increase in Height.

Change in Body Shape.

Voice Change.

Increased Activity of Sweat and Sebaceous Glands.

Development of Sex Organs.

Reaching Mental, Intellectual and Emotional Maturity.