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प्रश्न
Which statement is not for a hormone?
पर्याय
They act on target organs usually away from the source glands.
They are secreted directly into the blood.
They are used again and again like catalysts.
They are produced in very minute quantities and are biologically very active.
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उत्तर
They are used again and again like catalysts.
APPEARS IN
संबंधित प्रश्न
| Hormones | Target gland |
| Melanotrophin (MSH | ______ |
Do you agree with the statement – “ All hormones are chemical signals”? Yes / No. Justify your answer.
Define the following:
Exocrine gland
Name the hormone responsible for the following function:
Ossification of bones.
Name the different endocrine glands found in the body of man.
Given below is a table consisting of a set of items belonging to a common category. Complete the table by filling in the category and the odd one in the blanks
| Set | Category | Odd one |
| Adrenaline, Penicillin, Insulin, Thyroxin | __________ | __________ |
| Vasopressin, growth hormone, TSH, ACTH, FSH | __________ | __________ |
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Hormones are produced by endocrine gland.
Study the diagram given below and then answer the questions that follow:
 |
- Name the cells of the pancreas that produce (1) glucagon (2) insulin.
- State the main function of (1) glucagon and (2) insulin.
- Why is the pancreas referred to as an exo-endocrine gland?
- Why is insulin not given orally but is injected into the body?
- What is the technical term for the cells of the pancreas that produce endocrine hormones?
- Where in the body is the pancreas located?
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 |
Which of the following hormone is not secreted under the influence of pituitary gland?
