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प्रश्न
What are hormones? Give examples.
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उत्तर
Hormone is an organic substance that is sëcreted by one tissue into the bloodstream and induces a physiological response in other tissues. It is an intercellular signaling molecule. Virtually every process in a complex organism is regulated by one or more hormones. For example, insulin, epinephrine, estrogen, androgen, etc.
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संबंधित प्रश्न
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following endocrine glands produces its hormone in large quantities as a result of emotional stimulation?
Multiple choice question. Tick (✓) the correct choice:
The hormone thyroxine is secreted by
- pituitary gland
- adrenal gland
- thyroid gland
- pancreas
State whether the following statement is true (T) or false (F):
Hormones are secreted by ductless glands.
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 |
Hypertension is developed due to several factors EXCEPT ____________.
Insulin, a hormone chemically is ___________.
Choose the incorrect statement about insulin.
Which hormone is responsible for the changes noticed in females at puberty?
Give the characteristics of hormones pertaining to chemical nature.
