MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Daily loss of water from skin in absence of sweating is - |
| A. | 1.5 litre |
| B. | 1 litre |
| C. | 500-700 ml |
| D. | 200-300 ml |
| Answer» E. | |
| 2. |
Which of the following is the correct statement regarding coronary blood flow ? |
| A. | Coronary blood flow is directly related to perfusion pressure and also to resistance |
| B. | Coronary blood flow is inversely related to both pressure and resistance |
| C. | Coronary blood flow is directly related to perfusion pressure and inversely related to resistance |
| D. | Coronary blood flow is inversely related to perfusion pressure and directly related to resistance |
| Answer» D. Coronary blood flow is inversely related to perfusion pressure and directly related to resistance | |
| 3. |
Which of the following phenomena is closely associated with slow wave sleep - |
| A. | Atonia |
| B. | Dreaming |
| C. | Irregular heart rate |
| D. | Sleep walking |
| Answer» E. | |
| 4. |
Pacemaker regulating the rate of respiration- |
| A. | Apneustic centre |
| B. | Pre - Botzinger complex |
| C. | Pneumotaxic centre |
| D. | Dorsal group of nucleus |
| Answer» C. Pneumotaxic centre | |
| 5. |
Synaptic conduction is mostly orthodromic because : |
| A. | The strength of antidromic impulse is less |
| B. | Chemical mediator is localised only in the presynaptic terminal. |
| C. | Dendrities can not be depolarized |
| D. | Once repolarized,an area can not be depolarized |
| Answer» C. Dendrities can not be depolarized | |
| 6. |
Plasma volume is best evaluated by using ? |
| A. | Evan blue |
| B. | Inulin |
| C. | Mannitol |
| D. | Radiolabelled Water |
| Answer» B. Inulin | |
| 7. |
Agranular endoplasmic reticulum is involved in the synthesis of: |
| A. | Protein |
| B. | Lipid |
| C. | Carbohydrate |
| D. | Vitamin D |
| Answer» C. Carbohydrate | |
| 8. |
Glycophorin is present in - |
| A. | Hepatocyte |
| B. | Enterocyte |
| C. | Lymphocyte |
| D. | RBC |
| Answer» E. | |
| 9. |
In intersegmental reflex, the afferents come from - |
| A. | IIb fibres |
| B. | Muscle spindles |
| C. | Golgi tendon |
| D. | Ia fibres |
| Answer» C. Golgi tendon | |
| 10. |
About 90% of carbon dioxide is carried in the blood as |
| A. | Dissolved CO2 |
| B. | Bicarbonate |
| C. | Carbamino compound |
| D. | Carboxyhemoglobin |
| Answer» C. Carbamino compound | |
| 11. |
The force of muscle contraction can be increased by all of the following except: |
| A. | Increasing the number of motor units activated |
| B. | Increasing the frequency of activation of motor units |
| C. | Recruiting larger motor units |
| D. | Increasing the amplitude of action potential in the motor neurons |
| Answer» E. | |
| 12. |
Arterial blood gas of a 5 year old child done at sea level gives the following results.pH 7.41, PaO2O 100 mmHg, and PaCO2 40 mm Hg.The child is being ventilated with 80% oxygen.What is the (A-a)PO2O - |
| A. | 570.4 mm Hg |
| B. | 520.4 mm Hg |
| C. | 470.4 mm Hg |
| D. | 420.4 mm Hg |
| Answer» E. | |
| 13. |
Pain and temperature sensation are transmitted by ? |
| A. | Dorsal column |
| B. | Lateral spinothalamic tract |
| C. | Ventral spinothalamic tract |
| D. | Spinothalamic tract |
| Answer» C. Ventral spinothalamic tract | |
| 14. |
Delta waves are seen in: |
| A. | Deep sleep |
| B. | REM sleep |
| C. | Stage I NREM sleep |
| D. | Awake state |
| Answer» B. REM sleep | |
| 15. |
Physiological dead space in lung is - |
| A. | Zone 3 |
| B. | Zone 4 |
| C. | Zone 1 |
| D. | Zone 2 |
| Answer» D. Zone 2 | |
| 16. |
All of the following are involved in the transmission of regulatory signals through the ECF,Except: |
| A. | Endocrine signals through hormones |
| B. | Synaptic signals through neurotransmitters |
| C. | G protein coupled receptors |
| D. | Direct contact through gap junctions |
| Answer» E. | |
| 17. |
Nerve ending sensitive to noxious stimuli are present in all except - |
| A. | Mesentry |
| B. | Liver |
| C. | Stomach |
| D. | Intestine |
| Answer» C. Stomach | |
| 18. |
Stimulation of post ganglion sympathetic neurons leads to - |
| A. | Fast EPSP |
| B. | Slow EPSP |
| C. | Slow IPSP |
| D. | All of the above |
| Answer» E. | |
| 19. |
Osmotic adaptation is A/E - |
| A. | In brain cells |
| B. | Due to osmolytes |
| C. | Protects against large H2O shift |
| D. | Due to urea and glucose mainly |
| Answer» E. | |
| 20. |
Hormone synthesized as peptide precursor is/are - |
| A. | Insulin |
| B. | PTH |
| C. | Renin |
| D. | All of the above |
| Answer» E. | |
| 21. |
Alveolar-asterial O2 tension gradient increases in A/E - |
| A. | Hypoventilation |
| B. | Right to left shunt |
| C. | Diffusion defect |
| D. | Ventilation perfusion abnormality |
| Answer» B. Right to left shunt | |
| 22. |
Intensity of sensory stimulation is directly related to - |
| A. | Duration of action potential(AP) |
| B. | Frequency of AP |
| C. | Amplitude of AP |
| D. | All of the above |
| Answer» C. Amplitude of AP | |
| 23. |
In an adult man weighing 70 kgs, the extracellular fluid volume will be about - |
| A. | 42 L |
| B. | 25 L |
| C. | 15 L |
| D. | 12 L |
| Answer» B. 25 L | |
| 24. |
Blood in splanchnic area during exercise is decreased due to: |
| A. | Venodilation with increased blood flow |
| B. | Venodilation with normal blood flow |
| C. | Venoconstriction with decreased blood flow |
| D. | Venodilation with decreased blood flow |
| Answer» D. Venodilation with decreased blood flow | |
| 25. |
Which of the following hormones is an example of a peptide hormone ? |
| A. | Parathormone |
| B. | Adrenaline |
| C. | Cortisol |
| D. | Throxine |
| Answer» B. Adrenaline | |
| 26. |
Paneth cells in the mucosa of the small intestine secrete - |
| A. | Lysozyme |
| B. | Bioactive peptides and Bioamines |
| C. | Bicarbonate |
| D. | Pepsin and Rennin |
| Answer» B. Bioactive peptides and Bioamines | |
| 27. |
Corpus luteum secretes which hormone ? |
| A. | Estrogen |
| B. | Progesterone |
| C. | Testosterone |
| D. | Thyroxine |
| Answer» C. Testosterone | |
| 28. |
Vitamin B12 is absorbed in - |
| A. | Jejunum |
| B. | duodenum |
| C. | stomach |
| D. | Ileum |
| Answer» E. | |
| 29. |
Human brain is more intelligent than monkey's brain due to - |
| A. | Increased brain area compared to body surface area |
| B. | More blood supply |
| C. | Large brain |
| D. | Increased convulations |
| Answer» D. Increased convulations | |
| 30. |
Basal Metabolic Rate dependsmost closely on: |
| A. | Obesity |
| B. | Body surface area |
| C. | Lean body mass |
| D. | Body mass index |
| Answer» C. Lean body mass | |
| 31. |
Which of the following has highest pH ? |
| A. | Bile |
| B. | Pancreatic juice |
| C. | Saliva |
| D. | Gastric juice |
| Answer» C. Saliva | |
| 32. |
True regarding respiratory centre is - |
| A. | Directly stimulated by fall in PaO2 |
| B. | Inhibited during swallowing |
| C. | Connected with cardiac center |
| D. | Situated in midbrain |
| Answer» C. Connected with cardiac center | |
| 33. |
Which of the following favours filtration at the arteriolar end of the capillary bed - |
| A. | Increased in hydrostatic pressure of capillaries |
| B. | Decreased in hydrostatic pressure of capillaries |
| C. | Decreased in oncotic pressure of interstitium |
| D. | Increased in oncotic pressure of capillaries |
| Answer» B. Decreased in hydrostatic pressure of capillaries | |
| 34. |
Mechanism of analgesia is by - |
| A. | Nocistain stimulation |
| B. | O.L.R.I. |
| C. | Nicotine and cholinergic receptors |
| D. | All of the above |
| Answer» E. | |
| 35. |
All of these are correct of renal physiology except - |
| A. | Glucose is reabsorbed in DCT |
| B. | Hb is not excreted as it is a large molecule |
| C. | Amino acids are reabsorbed in CD |
| D. | All of the above |
| Answer» E. | |
| 36. |
Regarding thyroid hormone all are true except: |
| A. | T3 is more active than T4 |
| B. | T4 has shorter half life than T3 |
| C. | T3 is more avidly bound to nuclear receptors than T4 |
| D. | T4 has the maximum plasma concentration |
| Answer» C. T3 is more avidly bound to nuclear receptors than T4 | |
| 37. |
Which of the following is not seen after removal of testis in an adult ? |
| A. | Loss of libido |
| B. | Impotence |
| C. | Muscle weakness |
| D. | Decrease FSH |
| Answer» E. | |
| 38. |
In a study to measure BP, two student Rakesh and Arif conduct a study on a dog. Rakesh measures BP using mercury sphygmomanometer on the right femoral artery and Arif measures using a pressure transducer and pulse tracing on the left femoral arter |
| A. | Falsely low valves at high pressure in pulse tracings |
| B. | Falsely high valves at low pressure in pulse tracing |
| C. | Ventricular filling affects diastole period |
| D. | Femoral artery is more sensitive to adrenaline on right side |
| Answer» B. Falsely high valves at low pressure in pulse tracing | |
| 39. |
Joint position sense from upper limb is carried by ? |
| A. | Dorsal spino cerebellar tract |
| B. | Ventral spino cerebellar tract |
| C. | Fasciculus cuneatus |
| D. | Fasciculus gracilis |
| Answer» D. Fasciculus gracilis | |
| 40. |
Compensating mechanisms involved in acclimatization to altitude - |
| A. | Respiratory depression |
| B. | Respiratory acidosis |
| C. | Hyperventilation |
| D. | Hypoventilation |
| Answer» D. Hypoventilation | |
| 41. |
Glucose is transported through - |
| A. | Na+ symport |
| B. | K+ symport |
| C. | Na+ anteport |
| D. | K+ anteport |
| Answer» B. K+ symport | |
| 42. |
Anemic hypoxia is due to |
| A. | Decrease PO2 in arterial blood |
| B. | Increase PO2 in arterial blood |
| C. | Increase PCO2 in arterial blood |
| D. | Decrease O2 content in arterial blood |
| Answer» E. | |
| 43. |
Antibodies against sperm may develop after: |
| A. | Infection |
| B. | Trauma |
| C. | Orchidectomy |
| D. | Vasectomy |
| Answer» E. | |
| 44. |
Testosterone is secreted by ? |
| A. | Pituitary |
| B. | Liver |
| C. | Sertoli cells |
| D. | Leydig cells |
| Answer» E. | |
| 45. |
Acidification of urine is occurs in |
| A. | PCT |
| B. | Ascending loop |
| C. | Decending loop |
| D. | Collecting duct |
| Answer» E. | |
| 46. |
Sudden decrease in serum calcium is associated with: |
| A. | Increased phosphate |
| B. | Increased thyroxine and PTH secretion |
| C. | Cardiac conduction abnormalities |
| D. | Increased excitability of muscle and nerve |
| Answer» E. | |
| 47. |
Which one of the following production is noted in Cushing's syndrome, a tumor associated disease of the adrenal cortex - |
| A. | Decrease production of cortisol |
| B. | Increase production of cortisol |
| C. | Excessive production of epinephrine |
| D. | Excessive production of vasopressin |
| Answer» C. Excessive production of epinephrine | |
| 48. |
Free fatty acid is transported in blood by ? |
| A. | Albumin |
| B. | Globulin |
| C. | Fibrinogen |
| D. | Carnitine |
| Answer» B. Globulin | |
| 49. |
The gradient of alveolar arterial oxygen tension increase in A/E - |
| A. | Right - Left shunt |
| B. | Diffusion defect |
| C. | Ventilation perfusion abnormality |
| D. | Hypoventilation |
| Answer» E. | |
| 50. |
A/E one result in increase secretion of Renin - |
| A. | Decreased amount of Na+ in DCT |
| B. | Renal ischaemia |
| C. | Narrowing of afferent arterioles |
| D. | Decreased amount of Na+ in PCT |
| Answer» E. | |