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प्रश्न
Given alongside are the diagrammatic sketches of some endocrine glands. Observe the figures and answer the following questions:
(i) Label the parts numbered 1 to 5.
(ii) Name the hormones secreted by (2) and (5).
(iii) Which chemicals in our body are greatly affected by hormones?
(iv) What is the chemical nature of hormones?
(v) Name the elements related to the functioning of hormones secreted by the structure (2) and (5).
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उत्तर
(i)
1. Larynx.
2. Left lobe of the thyroid gland.
3. Trachea (windpipe).
4. Oesophagus.
5. Parathyroid glands.
(ii) Structure (2) secretes thyroxin hormone and structure (5) secretes parathormone.
(iii) Enzymes; which constitute the enzyme system of the body.
(iv) Hormones may be proteins, amino acids or steroids.
(v) Iodine is related to the functioning of glands (2) calcium, phosphorus is related to the functioning of the gland (5).
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संबंधित प्रश्न
What is the difference between an exocrine gland and an endocrine gland?
Name the following:
The largest endocrine gland.
Which gland is responsible for the following disease?
Goitre
Why are hormones called ‘chemical messengers’?
The release of progesterone in the urine is an indication of pregnancy. Explain.
Fill in the Blanks:
The glands with ducts are called ______.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Hormones are chemically protein.
Study the diagram given below and then answer the questions that follow:
 |
- Name the cells of the pancreas that produce (1) glucagon (2) insulin.
- State the main function of (1) glucagon and (2) insulin.
- Why is the pancreas referred to as an exo-endocrine gland?
- Why is insulin not given orally but is injected into the body?
- What is the technical term for the cells of the pancreas that produce endocrine hormones?
- Where in the body is the pancreas located?
Comment on homeostasis.
Select the right match of endocrine gland and their hormone among the options given below
| Column I | Column II |
| A. Pineal | i. Epinephrine |
| B. Thyroid | ii. Melatonin |
| C. Ovary | iii. Estrogen |
| D. Adrenal medulla | iv. Tetraiodothyronine |
