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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Amino acid residues which are essential for the biological activity of PTH are (A) N-terminal 34 amino acids (B) N-terminal 50 amino acids (C) C-terminal 34 amino acids (D) C-terminal 50 amino acids |
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Answer» (A) N-terminal 34 amino acids |
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| 2. |
PTH (A) Reduces the renal clearance or excretion of calcium (B) Increases renal phosphate clearance (C) Increases the renal clearance of calcium (D) Decreases the renal phosphate clearance |
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Answer» (D) Decreases the renal phosphate clearance |
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| 3. |
The number of amino acid residues in PTH: (A) 51 (B) 84 (C) 90 (D) 115 |
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Answer» Correct option (B) 84 |
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| 4. |
Number of amino acid residues in prolactin is (A) 51 (B) 84 (C) 191 (D) 198 |
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Answer» Number of amino acid residues in prolactin is 51. |
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| 5. |
The percentage of inactive precursors (monoidotyrosine and diiodotyrosine) in thyroglobulin is (A) 30 (B) 40 (C) 50 (D) 70 |
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Answer» Correct option (B) 40 |
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| 6. |
β-Subunits of insulin receptor are present (A) Outside the cell membrane (B) In the cell membrane (C) Across the cell membrane (D) In the cytosol |
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Answer» (C) Across the cell membrane |
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| 7. |
α-Subunits of insulin receptor are present (A) Outside the cell membrane (B) In the cell membrane (C) Across the cell membrane (D) In the cytosol |
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Answer» (A) Outside the cell membrane |
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| 8. |
Which of one ring in the structure of the following is aromatic? (A) Androgens (B) Estrogens (C) Cholesterol (D) Bile acids |
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Answer» (B) Estrogens |
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| 9. |
Decreased secretion of growth hormone during childhood causes (A) Simmond’s disease (B) Cushing’s disease (C) Dwarfism (D) Cretinism |
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Answer» (C) Dwarfism |
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| 10. |
The sequence of amino acid in which the biological value of parathormone is (A) 1–15 (B) 1–34 (C) 30–50 (D) 50–84 |
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Answer» The sequence of amino acid in which the biological value of parathormone is 50–84. |
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| 11. |
The number of amino acids in parathormone is (A) 65 (B) 84 (C) 115 (D) 122 |
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Answer» The number of amino acids in parathormone is 115. |
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| 12. |
Insulin increases the permeability of glucose across the plasma membrane of muscle cells by (A) Acting on adenylate cycle (B) By loosening the integrity of the membrane (C) Through Ca2+ ions (D) By membrane cruting the hexose carries of intracellular organelles and making them fuse with the plasma membrane |
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Answer» (D) By membrane cruting the hexose carries of intracellular organelles and making them fuse with the plasma membrane |
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| 13. |
This pancreatic hormone promotes hypogenesis: (A) Insulin (B) Glucagon (C) Stomato station (D) Pancreozymine |
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Answer» Correct option (A) Insulin |
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| 14. |
Expand the acronyms (a) FSH (b) LH (c) hCG (d) hPL |
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Answer» FSH – Follicle Stimulating Hormone LH – Luteinizing Hormone hCG – human Chorionic Gonadotropin hPL – human Placental Lactogen |
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| 15. |
All the following statements about βendorphin are true except µ : (A) It is a polypeptide (B) Its precursor is pro-opio-melanocortin (C) Its receptors are represent in brain (D) Its action is blocked by morphine |
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Answer» (D) Its action is blocked by morphine |
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| 16. |
The number of amino acids in pre-pro insulin is(A) 51 (B) 86 (C) 109 (D) 132 |
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Answer» The number of amino acids in pre-pro insulin is 109. |
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| 17. |
Stein-leventhal syndrome is due to overproduction of (A) Estrogens (B) Androgens (C) Gastogens (D) Ethinyl estradiol |
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Answer» (A) Estrogens |
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| 18. |
Thyroid stimulating hormone is a dimer. The α-subunits of TSH, LH, FSH are identical. Thus the biological specificity must therefore be β subunit in which the number of amino acids is (A) 78 (B) 112 (C) 130 (D) 199 |
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Answer» Correct option (D) 199 |
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| 19. |
TSH hormone biochemically is a (A) Protein (B) Fat (C) Glycoprotein (D) Carbohydrate |
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Answer» (C) Glycoprotein |
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| 20. |
All the following statements about FSH are true except (A) It is a tropic hormone secreted by anterior pituitary (B) Its secretion is increased by gonadotropin releasing hormone (C) It acts on Sertoli cells (D) It increases the synthesis of testosterone |
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Answer» (D) It increases the synthesis of testosterone |
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| 21. |
Women become susceptible to osteoporosis after menopause due to decreased (A) Secretion of Parathormone (B) Conversion of vitamin D into calcitriol (C) Secretion of estrogen (D) Secretion of progesterone |
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Answer» (C) Secretion of estrogen |
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| 22. |
Acromegaly results due to excessive release of (A) Thyroxine (B) Growth hormone (C) Insulin (D) Glucagon |
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Answer» (B) Growth hormone |
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| 23. |
The half life of insulin is (A) < 3–5 minutes (B) < 8–10 minutes (C) < 15 minutes (D) < 15 minutes |
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Answer» (B) < 8–10 minutes |
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| 24. |
Melanogenesis is stimulated by (A) MSH (B) FSH (C) LH (D) HCG |
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Answer» Correct option (B) FSH |
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| 25. |
MSH causes (A) Dispersal of melanin granules in melanocytes (B) Increase in melanin concentration in melanocytes (C) Decerease in melanin concentration in melanocytes (D) Increase in number of melanocytes |
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Answer» (D) Increase in number of melanocytes |
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| 26. |
The immediate parent of α, β and γ endorphins is (A) Pro-opiomelanocortin (B) β-lipotropin (C) ATCH (D) Lipoprotein |
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Answer» (B) β-lipotropin |
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| 27. |
All the following statements about TSH are true except (A) It is a glycoprotein (B) It is made up of α- and β-subunits (C) Receptor recognition involves both the subunits (D) Its subunit is identical with those of FSH and LH |
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Answer» (D) Its subunit is identical with those of FSH and LH |
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| 28. |
All the following statements about TSH are true except (A) It is a tropic hormone (B) It acts on para-follicular cells of thyroid glands (C) Its receptors are membrane-bound (D) Its second messenger is cyclic AMP |
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Answer» (C) Its receptors are membrane-bound |
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| 29. |
All of the following can be formed from pro-opiomelanocortin except (A) α-and β-MSH (B) β-and γ-Lipotropins (C) α-and β-Endorphins(D) FSH |
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Answer» (A) α-and β-MSH |
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| 30. |
The cytosolic superoxide dismutase enzyme contains (A) Cu2+ (B) Cu2+ and Zn2+ (C) Zn2+ (D) Mn2+ |
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Answer» (B) Cu2+ and Zn2+ |
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| 31. |
Cytosolic superoxide dismutase contains (A) Cu2+ and Zn2+ (B) Mn2+ (C) Mn2+ and Zn2+ (D) Cu2+ and Fe2+ |
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Answer» (A) Cu2+ and Zn2+ |
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| 32. |
Increased reabsorption of water from the kidney is the major consequence of the secretion of the hormone? (A) Cortisol (B) Insulin (C) Vasopressin (D) Aldosterone |
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Answer» Correct option (A) Cortisol |
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| 33. |
Mitochondrial superoxide dismutase contains (A) Zinc (B) Copper (C) Magnesium (D) Manganese |
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Answer» Correct option (D) Manganese |
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| 34. |
All the following statements about proopiomelanocortin are true except (A) It is made up of 285 amino acids (B) It is synthesised in pars intermedia and anterior lobe of pituitary gland (C) It is the precursor of ACTH and melatonin (D) It is the precursor of corticotropin like intermediate lobe peptide and endorphins |
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Answer» (C) It is the precursor of ACTH and melatonin |
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| 35. |
The mitochondrial superoxide dismutase contains (A) Mg++ (B) Mn++ (C) Co++ (D) Zn++ |
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Answer» Correct option (B) Mn++ |
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| 36. |
In thyroxine, tyrosine residues are iodinated at positions: (A) 1 and 3 (B) 2 and 4 (C) 3 and 5 (D) 4 and 6 |
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Answer» Correct option (C) 3 and 5 |
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| 37. |
Thyroid gland takes up circulating iodine (A) By simple diffusion (B) By facilitated diffusion (C) By active uptake (D) In exchange for chloride |
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Answer» (C) By active uptake |
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| 38. |
The protein IRS-1 is phosphorylated by (A) Protein kinase A (B) Protein kinase C (C) Tyrosine kinase activity of insulin receptor (D) Tyrosine kinase activity of IGF-1 receptor |
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Answer» (B) Protein kinase C |
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| 39. |
Iodide uptake by thyroid gland is decreased by (A) Thicyanate (B) Thiouracil (C) Thiourea (D) Methimazole |
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Answer» (A) Thicyanate |
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| 40. |
Progesterone is transported in blood by (A) Transcortin (B) Sex hormone binding globulin (C) Albumin (D) Testosterone estrogen binding globulin |
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Answer» (A) Transcortin |
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| 41. |
A specific cortisol binding protein, transcortin is a (A) Albumin (B) α1-Globulin (C) α2-Globulin (D) β-Globulin |
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Answer» Correct option (A) Albumin |
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| 42. |
An enzyme involved in catabolism of catecholamines is (A) Dopa decarboxylase (B) Aromatic amino acid decarboxylase (C) Monoamine oxidase (D) Catechol oxidas |
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Answer» (C) Monoamine oxidase |
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| 43. |
The most abundant thyroid hormone in blood is (A) Free T3 (B) T3 bound to TBG (C) Free T4 (D) T4 bound to TBG |
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Answer» (D) T4 bound to TBG |
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| 44. |
The biosynthesis of both Catecholamine and serotonin require (A) Tyrosine hydroxylase (B) N-methyl transferase (C) Aromatic amino acid decarboxylase (D) Tryptophan pyrrolase |
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Answer» (A) Tyrosine hydroxylase |
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| 45. |
When thyroxine binding globulin and thyroxine binding pre-albumin are saturated with thyroxine, the excess hormone is transported by (A) Albumin (B) Gamma globulins (C) Transcortin (D) None of these |
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Answer» Correct option (A) Albumin |
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| 46. |
Testosterone is transported in blood by (A) Transcortin (B) Testosterone binding globulin (C) Testosterone estrogen binding globulin (D) Albumin |
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Answer» (C) Testosterone estrogen binding globulin |
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| 47. |
Dopa decarboxylase is inhibited by (A) Epinephrine (B) Norepinephrine (C) α−Methyldopa (D) None of these |
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Answer» (C) α−Methyldopa |
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| 48. |
Protein kinase C is activated by (A) Cyclic AMP (B) Cyclic GMP (C) Diacyl glycerol (D) Inositol triphosphate |
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Answer» (C) Diacyl glycerol |
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| 49. |
ACTH induces rise in (A) Cyclic AMP (B) Cyclic GMP (C) Calcium (D) Magnesium |
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Answer» (A) Cyclic AMP |
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| 50. |
Whcih one of the following is not a symptom of cushing’s disease? (A) Hyperglycemia (B) Hypernatremia (C) Hirsutism (D) Hyperkalemia |
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Answer» (D) Hyperkalemia |
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