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प्रश्न
What is a hormone?
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उत्तर
The secretions of the endocrine glands are called Hormones, which are poured directly into the blood and are carried to the target organs.
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संबंधित प्रश्न
Match the items in Column A with those in Column B. Column A Column B
| Column A | Column B |
| (a) Cretinism | (i) Pituitary gland |
| (b) Diabetes mellitus | (ii) Under the development of infant |
| (c) Increased metabolic rate | (iii) Oversecretion of thyroxine |
| (d) Simple goitre | (iv) Insufficient iodine in food |
| (e) Growth hormone | (v) Insufficient insulin in the blood. |
State whether the following statement is true (T) or false (F):
Hormones are secreted by ductless glands.
Find the odd-one out, giving reason:
Pituitary, adrenal, thyroid, salivary gland
Define the following:
Hormones
Match Column I with Columns II and III.
| Column I | Column II | Column III |
| Auxin | Gibberella fujikuroi | Abscission |
| Ethylene | Coconut milk | Intermodal elongation |
| Abscisic acid | Coleoptile tip | Apical dominance |
| Cytokinin | Chloroplast | Ripening |
| Gibberellins | Fruits | Cell division |
Give two differences between Hormones and vitamins.
Name the hormone secreted by Pars intermedia in lower vertebrates.
What are hormones?
Hormones are secreted directly into the ______.
Give the characteristics of hormones pertaining to chemical nature.
