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प्रश्न
Do you agree with the statement – “ All hormones are chemical signals”? Yes / No. Justify your answer.
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उत्तर
Yes, Chemically, hormones are peptides, amines, or steroids. They are involved in regulating. The metabolism of the body. They can bring about specific chemical changes during the metabolic
process. Therefore, hormones can be termed as 'chemical messengers'.
संबंधित प्रश्न
Give an example of androgens.
How do endocrine glands differ from other glands?
Which one of the following is not an endocrine gland?
Why are hormones called ‘chemical messengers’?
State the Function of Relaxin.
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column A | Column B |
| (i) Pituitary | (a) produces male sex characteristics |
| (ii) Ovaries | (b) decreases blood sugar level |
| (iii) Thyroid | (c) increases heart and breathing rate raises blood pressure |
| (iv) Thymus | (d) produces female sex characteristics |
| (v) Adrenals | (e) is known as emergency hormone |
| (vi) Hypothalamus | (f) regulates the level of calcium and phosphorus |
| (vii) Pancreas | (g) increases the rate of metabolism |
| (viii) Testes | (h) maintains the level of calcium |
| (ix) Parathyroid | regulates the amount of water excreted in the urine. |
| (x) Cretinism | (j) simulates skeletal growth |
| (xi) Diabetes mellitus | (k) regulates the activities of other glands |
| (xii) Insulin shock | (l) stimulates the development of male and female sex organs |
| (xiii) Gigantism | (m) Shortage of glucose in the blood. |
| (xiv) Enlargement of breasts in adult males | (n) Over-secretion of growth hormone |
| (xv) Exophthalmic goiter | (o) Excess of glucose in the blood |
| (xvi) Acromegaly | (p) Over-secretion of thyroxin |
| (xvii) Addison’s disease | (q) Dwarfism and mental retardation |
| (xviii)Cretinism | (r) Over-secretion of cortical hormones |
| (xix) Dwarfism | (s) Under-secretion of the adrenal cortex |
| (xx) Adrenalin | (t) Under-secretion of thyroxin in children |
| (xxi) Vasopressin | (u) Over-secretion of growth hormones in adults |
Write the role of oestrogen in ovulation?
Which one of the following statements is correct?
Given below are two statements.
Statement I- Highest secretion of growth hormone (GH) is seen till puberty.
Statement II - The GH is secreted continuously throughout life for repair and replacement of cells.
In light of the above statements, select the correct option given below.
Which hypothalamic hormones directly act on kidney tubules and uterus respectively?
