Title CHEMICAL COORDINATION AND INTEGRATION.pdf ✅

P a g e | 1 22.CHEMICAL COORDINATION AND INTEGRATION Single Correct Answer Type 1. Androgens regulates a) Development of accessory sex organs b) Muscular growth c) Maturation of accessory sex organs d) All of the above 2. Progesterone hormone is secreted by a) Corpus albicans b) Corpus callosum c) Corpus luteum in ovaries d) Corpus uteri 3. Injury to adrenal cortex is not likely to affect the secretion of which one of the following? a) Aldosterone b) Both androstenedione and dehydroepiandrosterone c) Adrenaline d) Cortisol 4. Hormones are non-nutrient chemicals, which acts as........ messengers and are produced in trace amount a) Intercellular b) Intracellular c) Extracellular d) None of these 5. Insulin receptors are a) Extrinsic protein b) Intrinsic protein c) G – protein d) Trimeric protein 6. Choose the correct option for A to D Types of cells (Langerhans) Hormones α – cells secrete A β – cells secrete B γ – cells secrete C δ – cells secrete D a) A-Glucagon, B-Insulin, C-Gastrin, D-Somatostatin b) A-Insulin, B-Glucagon, C-Gastrin, D-Somatostatin c) A-Insulin, B-Glucagon, C-Somatostatin, D-Gastrin d) A-Glucagon, B-Insulin, C-Somatostatin, D-Gastrin 7. ‘GIP’ stimulates the release of a) Glucagon b) Insulin c) Calcitonin d) Thyrocalcitonin 8. The thyroid gland is composed of ...A... lobes which are located on either side of the ...B... the lobes are interconnected with a thin flap of connective tissue called ...C... Select the correct combination for A, B and C a) A-3, B-trachea, C-isthmus b) A-4, B-trachea, C-isthmus c) A-2, B-trachea, C-isthmus d) A-1, B-trachea, C-isthmus 9. Some hormone need the secondary messenger, because a) They need activator b) They can’t cross cells membrane c) They can cross cells membrane d) They need a prosthetic group 10. Sex hormones can work without the help of a) Insulin b) Placenta c) Pituitary d) gonadotropins 11. Estrogen a) Stimulate the growth of ovarian follicle b) Stimulate the appearance of secondary sex characters c) Stimulate the growth of mammary gland d) All of the above 12. In human adults females, oxytocin a) Is secreted by anterior pituitary b) Stimulates growth of mammary glands c) Stimulate pituitary to secrete vasopressin d) Causes strong uterine contractions during parturition
P a g e | 2 13. The hormone that increases the blood calcium level and decreases its excretion by kidney is a) Parathormone b) Calcitonin c) Thyroxine d) Insulin 14. Gastrointestinal hormones are a) Steroidal in nature b) Proteinaceous in nature c) Glycoproteinaceous in nature d) Both (a) and (b) 15. I. Glucagon II. Epinephrine III. Steroid hormone IV. Idothyronine Among the given hormones which needs secondary messenger a) I and III b) III and IV c) I and II d) IV and I 16. A steroid hormone which regulates glucose metabolism is a) Cortisol b) Corticosterone c) 11- deoxycorticosterone d) Cortisone 17. The activity of formation of milk is regulated by the activity of ...A... . While the ejection of milk is controlled by ...B... hormone Here, A and B refers to a) A-oxytocin; B-prolactin b) A-prolactin; A-oxytocin c) A-prolactin; B-prolactin d) A-oxytocin; B-prolactin 18. Feeling the tremors of an earthquake, a scared resident of seventh floor of a multistoreyed building starts climbing down the stairs rapidly. Which hormone initiates this action? a) Thyroxine b) Adrenaline c) Glucagon d) Gastrin 19. Endocrine glands are a) Ductless glands whose secretions pour directly into blood b) Have ducts and pour their secretions into blood directly c) Have ducts which straightway pour secretions into target organs d) All of the above 20. Pheromones are also called I. ectohormones II. sex attractants III. semichemicals The correct option is a) I and III b) I and III c) I, II and III d) II and III 21. Sertoli cells are regulated by the pituitary hormone known as a) FSH b) GH c) Prolactin d) LH 22. Which of the following is gastrointestine hormone? a) Prolactin b) Enterogastrone c) GH d) FSH 23. Islets of Langerhans is a normal human pancreas comprise only a) 2-3% of pancreatic tissue b) 1-2% of pancreatic tissue c) 3-4% of pancreatic tissue d) 4-5% of pancreatic tissue 24. Which is the function of norepinephrine? a) Increase blood pressure b) Urine formation c) Increase secretion of adrenaline d) None of the above 25. Correct order of action of hydrophilic hormones I. Hormones bind to plasma membrane II. Physiological response III. Biochemical response IV. Generation of secondary messenger Choose the correct option a) I, II, III, IV b) II, I, III, IV c) I, IV, III, II d) III, I, II, IV 26. To yield more milk, cow is injected with
P a g e | 3 a) Sorbitol b) Prolactin c) Gonadotrophs d) Sterol 27. FSH (Follicle stimulating hormone) is produced by a) Adrenal cortex b) Anterior pituitary lobe c) Middle pituitary lobe d) Posterior pituitary lobe 28. Calcium level decreases in the blood due to hyposecretion of a) Parathyroid hormone b) Calcitonin c) Thyroxine d) Adrenaline 29. I. Somatostatin inhibits intestinal absorption of glucose II. Leydig’s cell secrete progesterone III. Melatonin is secreted by pineal gland IV. Myxoedema is a thyroid disorder V. Neurohypophysis secreted ACTH Select the correct statements and choose the option a) I, III and IV b) II, III and V c) I, IV and V d) II, IV and V 30. Hypothyroidism causes a) Myxoedema b) Cretinism c) Both (a) and (b) d) Exophthalmicgoitre 31. Which one of the following is not an endocrine gland? a) Kidney b) Thyroid c) Adrenal d) Pituitary 32. Pituitary gland is derived from a) Ectoderm b) Endoderm c) Mesoderm d) None of these 33. ‘ANF’ is secretes by a) Venous wall of heart b) Atrial wall of heart c) Both (a) and (b) d) None of these 34. Tyrosine is the precursor of a) Adrenaline b) Noradrenaline c) Testosterone d) Both (a) and (b) 35. Which one of the following four glands is correctly matched with the accompanying description? a) Thyroid — Hyperactivity in young children cause cretinism b) Thymus — Starts undergoing atrophy after puberty c) Parathyroid — Secretes parathormone, which promotes movements of Calcium ions from blood into bones during calcification d) Pancreas — Delta cells of islets of Langerhans secrete a hormone, which Stimulates glycolysis in liver 36. Generally the steroid hormones are derived from a) Proteins b) Carbohydrates c) Cholesterol d) Glycoprotein 37. Which hormone causes dilation of blood vessels, increased oxygen consumption and glycogenolysis? a) ACTH b) Insulin c) Adrenaline d) Glucagon 38. In Cushing’s syndrome, there is a) An increase in blood glucose level b) Hypertrophy of the skeletal muscles c) A fall in plasma cortisol d) A thickening of the skin 39. Progesterone is secreted by a) Corpus luteum b) Uterus c) Placenta d) Graafian follicle 40. Thymus gland releases ...... hormone a) T4 b) T3 c) Thymosins d) TCT 41. Endemic goitre is state of a) Increased thyroid function b) Normal thyroid function c) Decreased thyroid function d) Moderate thyroid function 42. ‘Tyrosine’ is important in the formation of I. T3 II. T4 III. Oxytocin IV. PRL Select the correct combination a) I and II b) II and III c) IV and I d) III and I 43. The thymus gland is a lobular structure located on the ...A... side of the ...B... and aorta. The thymus plays a significant role in the development ...C... system
P a g e | 4 Choose the correct combination of A, B and C a) A-ventral, B-heart, C-immune b) A-lateral, B-kidney, C-circulatory c) A-dorsal, B-heart, C-immune d) A-dorsal, B-parathyroid, C-circulatory 44. Resorption of water and electrolytes by distal tubules of kidney and thereby diuresis reducing the loss of water through urine (diuresis) is done by a) Oxytocin b) Vasopressin c) FSH d) LH 45. Which hormone produces calorigenic effect? a) Thyroxine b) FSH c) Insulin d) All of these 46. I. Hormones are non-nutrient chemicals II. Hormones act as intracellular chemicals III. Hormones are produced in moderate quantity IV. Hormones may be proteins, steroids, glycoproteins or biogenic amines Choose the option with written above correct statements a) I and II b) II and III c) III and IV d) I and IV 47. The thyroid gland is composed of a) Follicles b) Stromal tissue c) Trachea d) Both (a) and (b) 48. Which one of the following endocrine glands functions as a biological clock and a neurosecretory transducer? a) Adrenal gland b) Thyroid gland c) Pineal gland d) Thymus gland 49. An adenohypophysis hormone, which is regulated by feedback mechanism is a) Oxytocin b) TSH c) Vasopressin d) Cortisone 50. A person is having problems with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly? a) Parathyroid b) Parotid c) Pancreas d) Thyroid 51. Which gland is called 4S and 3F? a) Thyroid gland b) Parathyroid gland c) Adrenal gland d) Hypothalamus 52. Secretion is under control of neurosecretory nerve axons in a) Pineal gland b) Adrenal cortex c) Anterior pituitary d) Posterior pituitary 53. Insulin is a) Hypoglycemic hormone b) Decreases the blood sugar c) Act on adipose tissue and hepatocytes d) All of the above 54. Which one is not a placental hormone? a) HCG b) HCS c) Progesterone d) Melatonin 55. Largest endocrine gland is a) Pituitary b) Adrenal c) Thyroid d) Pineal 56. GnRh (Gonadotropin Releasing Hormone) stimulates the a) Pituitary to release the gonadotropin b) Pituitary for synthesis and release of gonadotropin c) Testis to release the gonadotropin d) Hypothalamus to release the gonadotropin 57. Match the source of gland with its respective hormone as well as the function. a) Source gland Hormone Function b) Posterior pituitary Vasopressin Stimulates resorption of water in the distal tubules in the nephron c) Corpus luteum Oestrogen Supports pregnancy d) Thyroid Thyroxine Regulates blood calcium level 58. Hyposecretion of which of the following can cause diabetes insipidus?