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प्रश्न
Answer the questions after observing the diagram given below.
- What acts as the first messenger?
- Why can’t hormones like catecholamines enter their target cells through plasma membrane?
- Name the mode of hormone action shown in the diagram.
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उत्तर
- The hormone acts as the first messenger
- Hormones like catecholamines are not lipid soluble and hence they cannot enter their target cells through the plasma membrane.
- Mode of hormone action through membrane receptor.
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संबंधित प्रश्न
The diagram given below represents the location and structure of an endocrine gland. Study the same and answer the questions that follow
(i) Name the endocrine gland shown in the diagram.
(ii) Name the secretion of the gland which regulates basal metabolism.
(iii) Name the mineral element required for the synthesis of the above mentioned hormone.
(iv) Name the disease caused due to undersecretion of the above mentioned hormone in children.
(v) Name the disease caused due to hypersecretion of the above mentioned hormone.
Rewrite the correct form of the statement : Alpha cells of pancreas secrete Insulin.
The hormone secreted by islets of langerhans.
Name and describe hormones secreted by ovaries.
Identify the odd one in the following and mention what the rest is:
Complete the following table by filling in the blanks numbered 1 to 7.
| Gland | Hormone secreted | Effect on body |
| (1) ______ | (2) ______ | Regulates basal metabolism |
| Pancreas ("beta" cells) | (3) ______ | Controls blood sugar |
| (4) ______ | (5) ______ | Increases heart beat |
| (6) ______ | Thyroid stimulating hormone | (7) ______ |
Name the hormone responsible for the following function:
Increased blood supply to muscles.
Addison's disease is due to a defect in ______.
Which of the following statement is correct about the endocrine glands in human?
List any two effects of adrenaline.
