MCQOPTIONS
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MCQOPTIONS
This section includes 491 Mcqs, each offering curated multiple-choice questions to sharpen your Medical Subjects knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following vitamins is necessary for maturation of blood precursor cells________________? |
| A. | Vit- A |
| B. | Thiamine |
| C. | Riboflavin |
| D. | Cyano cobalamine |
| Answer» E. | |
| 2. |
Which of them is not affected by vitamin K deficiency_____________? |
| A. | Factor IX |
| B. | Factor VII |
| C. | Factor II |
| D. | Factor VIII |
| Answer» E. | |
| 3. |
Which of these following is not an effect of insulin ? |
| A. | Decreased gluconeogenesis |
| B. | Increased glycogenolysis |
| C. | Increased transport of glucose into cells |
| D. | Induction of lipoprotein lipase |
| Answer» C. Increased transport of glucose into cells | |
| 4. |
Which one of the following is a precursor of both gonadal and adrenocortical hormones_____________? |
| A. | Progesterone |
| B. | Cortisol |
| C. | Testosterone |
| D. | Corticosterone |
| Answer» B. Cortisol | |
| 5. |
Which one of the following is a regulatory protein of the muscle ? |
| A. | Troponin |
| B. | Myosin |
| C. | Actin |
| D. | Protein- C |
| Answer» B. Myosin | |
| 6. |
Which one of the following is not responsible for concentration of urine in the kidneys______________? |
| A. | Aldosterone |
| B. | Angiotensin II |
| C. | Vasopressin |
| D. | Epinephrine |
| Answer» E. | |
| 7. |
which receptor is responsible for monitoring the rate of muscle stretch ? |
| A. | Nuclear bag intrafusal fibers |
| B. | Nuclear chain |
| C. | Golgi tendon organ |
| D. | Pacinium corpuscles |
| Answer» B. Nuclear chain | |
| 8. |
Which sensation is not lost on the side of lesion in brown sequard syndrome ? |
| A. | Touch |
| B. | Vibration sense |
| C. | Muscle sense |
| D. | Temperature |
| Answer» E. | |
| 9. |
Within which parts of a gastric gland are chief cells located_____________? |
| A. | Fundus |
| B. | Isthmus |
| C. | Neck |
| D. | Gastric pit |
| Answer» B. Isthmus | |
| 10. |
Which of the following statements about the action of the somatomedin is true ? |
| A. | They inhibit protein synthesis |
| B. | They antagonize the effect of insulin |
| C. | They promote growth of bone and cartilage |
| D. | They mediated the local effects of Somatostatin |
| Answer» D. They mediated the local effects of Somatostatin | |
| 11. |
Which of the following statements about pulmonary surfactant is false ? |
| A. | It is secreted by Type II pneumocytes |
| B. | It contains lecithin and sphingomyelin |
| C. | It increases surface tension |
| D. | It prevents collapse of smaller alveoli |
| Answer» D. It prevents collapse of smaller alveoli | |
| 12. |
which of the following secretions has a very high pH________________? |
| A. | Gastric juice |
| B. | Pancreatic juice |
| C. | Bile in gall bladder |
| D. | Saliva |
| Answer» C. Bile in gall bladder | |
| 13. |
Which of the following results due to excessive parathormone secretion_______________? |
| A. | Increased excretion of phosphates |
| B. | Increased serum calcium |
| C. | Decrease excretion of calcium |
| D. | Increase excretion of calcium |
| Answer» C. Decrease excretion of calcium | |
| 14. |
Which of the following represents most dangerous situation_____________? |
| A. | Rh+ ve mother, who is bearing 2nd Rh+ ve child |
| B. | Rh+ ve mother, bearing her 2nd + ve child |
| C. | Rh+ ve mother, bearing her 1st Rh – ve child |
| D. | Rh – ve mover, bearing her 1stRh + ve child |
| Answer» C. Rh+ ve mother, bearing her 1st Rh – ve child | |
| 15. |
Which of the following is one for a patient on coumarin (warfarin) therapy_______________? |
| A. | Partial thromboplastin time ( PTT) |
| B. | Prothrombin time (PT) |
| C. | Bleeding time (BT) |
| D. | Capillary fragility test (CFT) |
| Answer» C. Bleeding time (BT) | |
| 16. |
Which of the following is not useful for coagulation______________? |
| A. | Plasmin |
| B. | Thrombin |
| C. | Calcium |
| D. | Fibrin |
| Answer» B. Thrombin | |
| 17. |
Which of the following is not true for myelinated nerve fibers______________? |
| A. | Impulse through myelinated fibers is slower than non- myelinated fibers |
| B. | Membrane currents are generated at nodes of Ranvier |
| C. | Saltatory conduction of impulses is seen |
| D. | Local anesthesia is effective only when the nerve is not covered by myelin sheath |
| Answer» B. Membrane currents are generated at nodes of Ranvier | |
| 18. |
Which of the following is not true about axonotmesis ? |
| A. | Impairment of both sensory and motor function |
| B. | Wallerian degeneration |
| C. | Intact neural sheath is not present |
| D. | Reversible loss, which will be regenerated i 6-8 wks |
| Answer» D. Reversible loss, which will be regenerated i 6-8 wks | |
| 19. |
Which of the following is not involved in blood clotting ? |
| A. | Calcium |
| B. | Prothrombin |
| C. | Fibrinogen |
| D. | Fe+2 |
| Answer» E. | |
| 20. |
Which of the following is not a vitamin K dependent procoagulant ? |
| A. | Factor II |
| B. | Factor VII |
| C. | Factor IX |
| D. | Factor XI |
| Answer» E. | |
| 21. |
Which of the following is not a marker of bone formation_________________? |
| A. | Alkaline phosphatase |
| B. | Osteocalcin |
| C. | Procollagen marker |
| D. | Hydroxy proline |
| Answer» E. | |
| 22. |
Which of the following is not a cause of secondary polycythemia ? |
| A. | High Altitude |
| B. | Myeloproliferative changes |
| C. | Pheochromocytoma |
| D. | Cerebellar hemangioblastoma |
| Answer» C. Pheochromocytoma | |
| 23. |
Which of the following is important in renal excretion of hydrogen ion ? |
| A. | Combining H+ with Cl- to form Hcl |
| B. | Combining H+ and HCO3- via enzyme carbonic anhydrase |
| C. | Trapping H+ by acetate |
| D. | Trapping H+ by NH3+ |
| Answer» E. | |
| 24. |
Which of the following is called hunger hormone______________? |
| A. | Epinephrine |
| B. | Glucagon |
| C. | Pituitary |
| D. | Thyroxine |
| Answer» C. Pituitary | |
| 25. |
Which of the following increases turbulence in blood flow ? |
| A. | Reynolds number < 2000 |
| B. | Decrease in velocity of blood |
| C. | Decrease in density of blood |
| D. | Increase in diameter of blood vessel |
| Answer» E. | |
| 26. |
Which of the following hormones increase the sensitivity of heart to epinephrine________________? |
| A. | Parathyroid |
| B. | Insulin |
| C. | Thyroid |
| D. | Glucagon |
| Answer» D. Glucagon | |
| 27. |
Which of the following hormones is released from the posterior pituitary ? |
| A. | ACTH |
| B. | Antidiuretic hormone |
| C. | Growth hormone |
| D. | Luetinizing hormone |
| Answer» C. Growth hormone | |
| 28. |
Which of the following hormones exerts the least effect on calcium metabolism of bone tissue ? |
| A. | Anderogen |
| B. | Estrogen |
| C. | Nor epinephrine |
| D. | Thyroid hormone |
| Answer» D. Thyroid hormone | |
| 29. |
Which of the following hormones does not affect growth ? |
| A. | Oxytocin |
| B. | Somatotropins |
| C. | Thyroid hormone |
| D. | Estrogen |
| Answer» B. Somatotropins | |
| 30. |
Which of the following hormones act via cAMP ? |
| A. | Insulin |
| B. | Parathormone |
| C. | Vasopressin |
| D. | Adrenalin |
| Answer» C. Vasopressin | |
| 31. |
Which of the following events DO NOT occur in rods in response to light_______________? |
| A. | Structural changes in rhodopsin |
| B. | Activation of transducin |
| C. | Decreased intracellular cGMP |
| D. | Opening of Na+ channels |
| Answer» E. | |
| 32. |
Which of the following does not stimulate alveolar hyperventilation ? |
| A. | Hypoxia |
| B. | Hypercapnia |
| C. | Acidosis |
| D. | Stretching of airways |
| Answer» E. | |
| 33. |
Which of the following coagulation factors is deficient in classical hemophilia ? |
| A. | VIII |
| B. | IX |
| C. | X |
| D. | XII |
| Answer» B. IX | |
| 34. |
Which of the following clotting factor is involved only in extrinsic pathway ? |
| A. | IX |
| B. | X |
| C. | II |
| D. | VII |
| Answer» E. | |
| 35. |
Which of the following cell type is not a precursor of erythrocyte____________? |
| A. | PR erythroblast |
| B. | Norm oblast |
| C. | Reticulocyte |
| D. | Myeloblast |
| Answer» E. | |
| 36. |
Which of the following causes lysis of clot______________? |
| A. | Fibrin |
| B. | Plasmin |
| C. | Hyaluronidase |
| D. | Coagulase |
| Answer» C. Hyaluronidase | |
| 37. |
Which of the following body secretions is maximum______________? |
| A. | Salivary |
| B. | Gastric |
| C. | Sweat |
| D. | Lacrimal |
| Answer» C. Sweat | |
| 38. |
Which of the following anterior pituitary hormones is primarily under inhibitory control of hypothalamus ? |
| A. | TSH |
| B. | GRH |
| C. | Somatostatin |
| D. | Prolactin |
| Answer» E. | |
| 39. |
Which of the following agents in not likely to be found in plasma ? |
| A. | Thrombin |
| B. | Fibrinogen |
| C. | Prothrombin |
| D. | Calcium ion |
| Answer» B. Fibrinogen | |
| 40. |
Which of the following adaptations will be apt to increase the work capacity at high altitude_________________? |
| A. | Increased workload, decreasing duration of exercise |
| B. | Increased workload, increasing duration of exercise |
| C. | Decreasing workload, increasing duration of exercise |
| D. | Decreasing workload, decreasing duration of exercise |
| Answer» D. Decreasing workload, decreasing duration of exercise | |
| 41. |
Which of the following acts as a neurotransmitter inhibitor _______________? |
| A. | Glutamate |
| B. | GABA |
| C. | Aspartic acid |
| D. | Lysin |
| Answer» C. Aspartic acid | |
| 42. |
Which is not produced enteroendocrinally_____________? |
| A. | Intrinsic factor |
| B. | Secretin |
| C. | Motilin |
| D. | GIP |
| Answer» B. Secretin | |
| 43. |
Which is false regarding insulin______________? |
| A. | Secreted by beta cells |
| B. | Glycopeptide |
| C. | Causes lipogenesis |
| D. | Promotes glycogenesis |
| Answer» C. Causes lipogenesis | |
| 44. |
Which is caused by acetylcholine through nicotinic receptors_____________? |
| A. | Contraction of skeletal muscle |
| B. | Decrease of heart rate |
| C. | Secretion of saliva |
| D. | Contraction of pupils |
| Answer» B. Decrease of heart rate | |
| 45. |
Which hormone , together with the catecholamines enhances the tone of vascular smooth muscle and assists in elevating blood pressure ? |
| A. | Parathyroid hormone |
| B. | Glucagon |
| C. | Thyroxine |
| D. | Cortisol |
| Answer» E. | |
| 46. |
Which hormone is released when serum calcium decreases ? |
| A. | Parathormone |
| B. | Calcitonin |
| C. | Thyroxine |
| D. | Adrenaline |
| Answer» B. Calcitonin | |
| 47. |
Which hormone does not have corresponding release hormone produced in pituitary ? |
| A. | TSH |
| B. | Prolactin |
| C. | ACTH |
| D. | FSH |
| Answer» C. ACTH | |
| 48. |
Which amongst the following is the gold standard for demonstrating hcG____________? |
| A. | Radio immune assay |
| B. | Latex agglutination |
| C. | Immunofluorescence |
| D. | ELISA |
| Answer» B. Latex agglutination | |
| 49. |
Which among the following is also called” peak less” insulin analog ? |
| A. | Insulin lispro |
| B. | Insulin glargine |
| C. | Insulin aspart |
| D. | Lente insulin |
| Answer» C. Insulin aspart | |
| 50. |
When a person lies down_______________? |
| A. | There is immediate increase in venous return |
| B. | Heart rate becomes stable at slightly more than normal |
| C. | Cerebral blood flow increase & becomes stable at more than normal |
| D. | Blood flow to the Apex of lung decrease |
| Answer» B. Heart rate becomes stable at slightly more than normal | |