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प्रश्न
What are chemical messengers?
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उत्तर
Endocrine glands control and coordinate the body functions through secreting certain chemical messengers called hormones.
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संबंधित प्रश्न
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following hormones converts excess of glucose into glycogen:
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following glands is also called master gland:
Put a tick mark (✓) against the correct alternative in the following statement:
In humans, increased thyroxine production results in :
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. |
Fill in the blank:
Blood pressure is controlled by the endorine gland called __________.
What happens when the thyroid gland secretes less hormone?
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 |
The hormone which increases the fertility in males is called
Explain mechanism of hormone action through membrane receptor.
Hormones are secreted directly into the ______.
