Free Physiology MCQs Mock Test Online with Answers

Q1 : Differential white blood cell counts in the laboratory are useful in the diagnosis of_______________?

A: Anemia B: Eosinophilia C: Vitamin deficiency D: Spherocytosis

Q2 : Hormones, which stimulate spermatogenesis, are______________?

A: Thyroxine and parathormone B: A.D.H. and Oxytocin C: Testosterone and F.S. H D: Insulin and glucagon

Q3 : Bile acids are derived from_____________?

A: Bile salts B: Bile pigments C: A & B D: Cholesterol

Q4 : Decreased basal metabolic rate is seen in_______________?

A: Obesity B: Hyperthyroidism C: Feeding D: Exercise

Q5 : Secretin is secreted by_____________?

A: Duodenum B: Pancreas C: Liver D: Stomach

Q6 : Test for estimating kidney function is_______________?

A: Serum creatinine B: Serum phosphatase C: Inulin test D: Insulin test

Q7 : The largest fraction of the total body fluid is_______________?

A: Extracellular fluid B: Intracellular fluid C: Plasma D: Whole blood

Q8 : The hormone having the maximum effect on granulation wound healing is____________?

A: Cortisone B: Parathormone C: Thyroxine D: Epinephrine

Q9 : Carbonic anhydrase in the kidney tubular cells is known to be associated with_____________?

A: Urea B: Chloride C: Bicarbonate ion D: Carbohydrate

Q10 : The hemoglobin % of a normal newborn is______________?

A: 8 B: 12 C: 10 D: 30

Q11 : All are seen in Cushing ‘s syndrome except_______________?

A: Truncal obesity B: Hypertension C: Hypoglycemia D: Poor wound healing

Q12 : Blood coagulation is impaired in___________?

A: Tetany B: Hyperparathyrodism C: Rickets D: None

Q13 : Serum is blood plasma without_____________?

A: Blood cells B: Fibrinogen C: Lymphocytes D: Plasma colloids

Q14 : The study of the electrical activity of the muscle is_______________?

A: EEG B: EMG C: Venn diagram D: ECG

Q15 : All of the following are adverse effects of long- term corticosteroids EXCEPT____________?

A: Hypoglycemia B: Psychosis C: Peptic ulcers D: Osteoporosis

Q16 : The transport of CO is diffusion limited because_______________?

A: Bind avidly with Hb B: Partial pressure of CO is less C: CO is less absorbed in water D: Alveolar membrane is less permeable

Q17 : Which hormone does not have corresponding release hormone produced in pituitary ?

A: TSH B: Prolactin C: ACTH D: FSH

Q18 : ESR depends on_______________?

A: Viscidity B: Fibrinogen C: Rouleaux D: All of the above

Q19 : Two substances that can probably be used to determine filtration fraction are_______________?

A: Inulin and mannitol B: Urea and diodrast C: PAH and Phenol red D: Inulin and PAH

Q20 : Clotting factor common to extrinsic and intrinsic pathway is_____________?

A: Factor II B: Factor III C: Factor V D: Factor VII

Q21 : Menopausal hormonal relations are______________?

A: T3 more potent than T4 B: T4 binds to prealbumin C: Absorption of T4 is more than T3 D: Concentration of T4 is more than T3

Q22 : Which of the following hormones act via cAMP ?

A: Insulin B: Parathormone C: Vasopressin D: Adrenalin

Q23 : Adrenal gland has two parts; cortex and medulla. Which of the following is correct______________?

A: Cortex is under the control of ACTH B: Both cortex and medulla are under the control of autonomic nervous system C: Cortex is exocrine and medulla is endocrine D: All of the above

Q24 : Bile color is due to_____________?

A: Creatinine B: Bilirubin C: Globulin D: 5 mercaptan purine

Q25 : Insulin increases the activity of___________?

A: HMG. CoA reductase B: HMG- CoA lyase C: HMG- CoA synthase D: Thiolase

Q26 : The receptors for parathyroid hormone are present in______________?

A: Osteoblasts B: Osteoclasts C: Periosteum D: Cartilage

Q27 : In human the Hb is_______________?

A: HbH B: HbA C: HbA D: HbS

Q28 : Negative BMR is observed with______________?

A: Pituitary disturbance B: Thyroid disturbance C: Parathyroid D: All of the above

Q29 : Oxygen as an emergency drug is contraindicated in______________?

A: Anaphylaxis B: Asthma C: Hyperventilation D: COPD

Q30 : Maximum secretory glands in stomach are________________?

A: Fundic glands B: Pyloric glands C: Gastric glands D: Brunner’s glands

Q31 : The most common form of hypoxia is______________?

A: Hypoxic B: Stagnant C: Anemic D: Histotoxic

Q32 : The major functional difference between DNA and RNA is_____________?

A: RNA contains ribose B: DNA carries the information in all organizations C: DNA is localized in nucleus D: RNA does not contain thymine

Q33 : Thromboxane is produced mainly by _______________?

A: Liver B: Platelets C: Damaged tissue D: Vascular endothelium

Q34 : Bile salt repeats its cycle in____________?

A: 4 times a day B: 2 times in between meals C: 8 times a day D: 10 times a day in fasting

Q35 : Contractile element in myofibril is_______________?

A: H band B: Sarcoplasm C: Sarcomere D: A line

Q36 : Increase in threshold level on applying subthreshold, slowly rising stimulus is known as ___________?

A: Adaptation B: Accommodation C: Refractoriness D: Electrotonus

Q37 : Hormone responsible for milk ejection______________?

A: Oxytocin B: Estrogen C: Progesterone D: Prolactin

Q38 : Cortisol______________?

A: Secretion increases following injury B: Favours protein synthesis C: Enhances antigen – antibody reactions D: Tends to lower blood pressure

Q39 : Prothrombin time is useful for_______________?

A: Detection of clot retraction B: Platelet count C: In hemophilia D: For evaluation in a patient taking anticoagulant drugs

Q40 : Production of bile takes place in____________________?

A: The gall bladder B: Kupffer cells C: Hepatic duct D: Hepatocytes

Q41 : Energy expenditure during normal breathing____________?

A: 25% – 50% of total energy spent B: 50% -75% of total energy spent C: 15% – 20% of total energy spent D: 2% – 3% of total energy spent

Q42 : A motor unit is made up of______________?

A: A flexor muscle and an extensor muscle B: A single skeletal muscle and all the motor peurons that supply it C: A single motor neuron and all the muscle fibers it innervates D: All the motor neurons in which response are observed after maximal stimulation of a single sensory nerve

Q43 : IN acute infection which of the following is found_______________?

A: Leucopenia B: Leukocytosis C: Neutrophilia D: Neutropenia

Q44 : Non- respiratory function of the lung is_________________?

A: Dopamine metabolism B: Adrenaline metabolism C: Serotonin metabolism D: PGE2 production

Q45 : 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

Q46 : Which of the following cell type is not a precursor of erythrocyte____________?

A: PR erythroblast B: Norm oblast C: Reticulocyte D: Myeloblast

Q47 : Which one of the following is a regulatory protein of the muscle ?

A: Troponin B: Myosin C: Actin D: Protein- C

Q48 : Which one of the following is not responsible for concentration of urine in the kidneys______________?

A: Aldosterone B: Angiotensin II C: Vasopressin D: Epinephrine

Q49 : Of the following is a reflex mediated by vagus ?

A: Bile flow from liver B: Pancreatic secretion of bicarbonate C: Cephalic phase of gastric secretion D: Mucous secretion from the Brunner’s glands

Q50 : Carbon monoxide poisoning causes_______________?

A: Hypoxic hypoxia B: Oxygen dissociation curve shifts to left C: Cyanosis D: Diffusion capacity of lungs decreases

Q51 : Hyperthyroidism can be caused by____________?

A: Clonidine B: Amiodarone C: Hydralazine D: Penicillamine

Q52 : Normal myeloid / erythroid ratio is______________?

A: 1:1000 B: 1:5000 C: 1:100 D: 1:50

Q53 : The primary effect of calcitonin is__________________?

A: Bone deposition B: Bone resorption C: Increases intestinal absorption of calcium D: Decreases intestinal absorption of calcium

Q54 : Parietal cells of gastric mucosa secrete ______________ ?

A: Hcl B: Gastrin C: Mucin D: All of the above

Q55 : Within which parts of a gastric gland are chief cells located_____________?

A: Fundus B: Isthmus C: Neck D: Gastric pit

Q56 : Amount of glucose absorbed in proximal convoluted tubule_______________?

A: 100% B: 0% C: 60% D: 50%

Q57 : Oxygen dissociation curve shifts to the right by all of the following except_____________?

A: Rise in temperature B: Rise in carbon dioxide tension C: Rise in pH D: Rise in H+ ion

Q58 : The effect which is seen due to decrease in serum calcium concentration is_______________?

A: Relaxation of muscle B: Excitability of the muscle C: Increase the renal absorption D: Depression of Nervous system

Q59 : Aldosterone______________?

A: Increases reabsorption of sodium B: Increases exceretion of potassium C: Increases retention of sodium D: Both ‘A’ and ‘B’

Q60 : Ventilation perfusion ratio is maximum in_______________?

A: Base of lung B: Apex of lung C: Posterior lobe of lung D: Middle lobe of lung

Q61 : Bacteria are most commonly ENGULFED by _________________?

A: Neutrophilic leukocytes B: Large granular lymphocytes C: Small lymphocytes D: Killer cells

Q62 : Normal intrapleural pressure during the start of inspiration is _________ mm of Hg?

A: -2 B: -5 C: 0 D: -7

Q63 : The best stimulator of respiratory center is____________?

A: Decrease in arterial carbon dioxide level B: Increase in arterial carbon dioxide level C: Increase in arterial oxygen level D: None of the above

Q64 : The best screening test for hemophilia is_____________?

A: BT B: PT C: PTT D: CRT

Q65 : Acute bacterial pyogenic infection manifests as_________________?

A: Leukopenia B: Leukocytosis C: Neutropenia D: Lymphopenia

Q66 : Alveolar O2 tension is______________?

A: Increased by hyperventilation B: Decreased by hyperventilation C: Similar to venous O2 tension D: Not affected by respiratory depression

Q67 : In cases of hypercapnia there is_______________?

A: Increased pH of blood B: Decreased pH of blood C: Remains same D: Increased oxygen concentration in blood

Q68 : Which amongst the following is the gold standard for demonstrating hcG____________?

A: Radio immune assay B: Latex agglutination C: Immunofluorescence D: ELISA

Q69 : The hormone whose deficiency causes diabetes insipidus is released from which nucleus of pituitary ________________?

A: Supraoptic B: Pre optic C: Suprachiasmatic D: Paraventricular

Q70 : The processing of short-term memory to long term memory is done in_______________?

A: Prefrontal cortex B: Hippocampus C: Neocortex D: Amygdala

Q71 : Histiocytes are_____________?

A: Scavenger cells B: Allergic cells C: Released in immunologic response D: Leukocytes

Q72 : The normal brown red color of feces results from the presence of_______________?

A: Heme B: Stercobilin C: Biliverdin D: Bilirubin diglucuronide

Q73 : Bone metabolism is controlled by ____________?

A: Vit – D & Calcium B: Parathormone C: Calcitonin D: All of the above

Q74 : Infants acquire adult hemoglobin level at_____________?

A: Birth B: End of 1st year C: Puberty D: 4 years

Q75 : Each kidney contains about ______ nephrons ?

A: One million B: Two million C: Four million D: ½ million

Q76 : Iron is stored in_______________?

A: RBC B: Reticule endothelial system C: Plasma D: All

Q77 : Trypsin is an activator of all of the following enzymes EXCEPT_______________?

A: Chymotrypsinogen B: Pepsinogen C: Proelastase D: Procolipase

Q78 : Hematocrit relates to which of the following______________?

A: Total blood volume B: Total RBC volume C: Total WBC vlume D: Plasma filtrate

Q79 : Osteoclasts are inhibited / modified and regulated by____________?

A: Parathyroid hormone B: Calcitonin C: 1,25 dihydroxycholecalciferols D: Tumor necrosis factor

Q80 : Ovulation is associated with sudden rise in______________?

A: Prolactin B: Testosterone C: L.H D: Oxytocin

Q81 : Histamine stimulate the secretion of_______________?

A: Gastrin by stomach B: Pancreatic enzymes C: HCL by stomach D: Amylase by salivary gland

Q82 : Surfactant is secreted by_____________?

A: Pnemocyte I B: Pnemocyte II C: Goblet cells D: Pulmonary vessels

Q83 : Gut associated lymphoid tissue ( GALT) is primarily located in______________?

A: Lamina propria B: Submucosa C: Muscularis D: Serosa

Q84 : A diet deficient in calcium will result in_____________?

A: Stimulation of the thyroid gland B: Increased ability to cross – link fibrin C: Production of Calcitonin and a low blood calcium level D: Production of parathyroid hormone and bone resorption

Q85 : Glucocorticoids have all the following actions except_______________?

A: Increase in blood glucose level B: Increase in protein catabolism C: Anti – insulin action in peripheral tissues D: Decrease in glucose uptake by the heart

Q86 : Surfactant is secreted by_____________?

A: Pnemocyte I B: Pnemocyte II C: Goblet cells D: Pulmonary vessels

Q87 : Survival time of platelet is approximately______________?

A: 10 hours B: 10 days C: 10 weeks D: 100 days

Q88 : All are features of skeletal muscle except______________?

A: Cylindrical B: Transverse striation C: Centrally placed nuclei D: Multiple nuclei

Q89 : Low calcium level will cause_____________?

A: Hyper excitability of wrist muscle B: Weak heart action C: Tetanus D: All of the above

Q90 : Secondary granules of neutrophils contain______________?

A: Lactoferrin B: Catalase C: Myeloperoxidase D: Nucleosidase

Q91 : Plasma colloid osmotic pressure is due to________________?

A: Albumin B: Globulin C: Fibrinogen D: Collagen

Q92 : The normal absolute eosinophil count is_____________?

A: 40 to 440 cells/C.mm B: 500 to 900 cells/C.mm C: 1200 to1500cells/C.mm D: 1500 to 2,000cells/C.mm

Q93 : Rigor mortis results after death is due to________________?

A: Failure of acetylcholine to diffuse B: Failure of ATP supply C: Failure of break down of calcium bridges D: None of the above

Q94 : Trousseau’s sign and chovstek’s sings are positive in___________?

A: Hyperparathyroidism B: Hypothyroidism C: Hypoparathyroidism D: Hyperthyroidism

Q95 : Reverse T3 is__________________?

A: Synthetic derivative B: Isomerisation product of T3 and active C: Isomerisation product of T3 and inactive D: Reverse of T3

Q96 : Muscle of expiration____________?

A: Diaphragm B: Internal intercostals C: External intercostals D: Rcti Abdominis

Q97 : Potassium is maximum in_____________?

A: Cell B: Plasma C: Interstitium D: Bone

Q98 : Christmas factor is_____________?

A: PTA B: PTC C: VWA D: Prothrombin

Q99 : Bleeding time is prolonged in a person who_______________?

A: Has liver disease B: Takes coumarin derivatives C: Lacks factor VIII D: Takes large quantities of aspirin

Q100 : Erythropoietin is produced in the_______________?

A: Bone marrow B: Kidney C: Liver D: Spleen

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