Free Physiology MCQs Mock Test Online with Answers

Q1 : Succinyl choline acts to block neuromuscular transmission by_______________?

A: Inhibiting cholinesterase B: Inhibiting the CNS C: Depolarizing the motor end plate of skeletal muscle D: Blocking the release of acetyl choline at the end plate

Q2 : IN the adrenal gland, androgens are produced by the cells in the____________?

A: Zona glomerulosa B: Zona reticularis C: Zona fasciculata D: Medulla

Q3 : In myasthenia gravis_______________?

A: there is lack of acetyl choline B: Lack of acetyl choline receptors C: There is isometric contraction D: There is isometric contraction

Q4 : Skeletal muscles______________?

A: Contracts when calcium is taken up by sarcoplasmic reticulum B: Contracts when actin and myosin filaments shorten C: Contraction is initiated by calcium binding to troponin D: Contraction is initiated by calcium binding to tropomyosin

Q5 : 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

Q6 : In thyrotoxicosis , there is______________?

A: Decrease in calcium excretion B: Increase in serum proteins which bind throxine C: Potentiation of catecholamine action D: Increase in calcium excretion

Q7 : The decreased phosphate level seen in hyper parathyroidism is due to ________________?

A: Decreased intestinal phosphate absorption B: Increased calcium excretion C: Decreased renal phosphate absorption D: Increased loss of phosphate in urine

Q8 : The blood glucose level in diabetes mellitus is decreased by removal of the______________?

A: Thyroid B: Parathyroids C: Anterior pituitary D: Posterior pituitary

Q9 : Inulin clearance closely resembles_____________?

A: G.F.R B: Renal plasma flow C: Creatinine clearance D: P.A.H. clearance

Q10 : 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

Q11 : The following electrodes are used to detect the muscle activity without pain_________________?

A: Surface electrode B: Round electrode C: Hook electrode D: Needle electrode

Q12 : Secretin does not cause _______________?

A: Bicarbonate secretion B: Augments the action of CCK C: Contraction of pyloric sphincter D: Gastric secretion increase

Q13 : Posterior pituitary insufficiency leads to______________?

A: Diabetes mellitus B: Diabetes insipidus C: Dwarfism D: Cretinism

Q14 : Hypothyroidism should be treated with daily administration of which of the following thyroid hormone preparations ?

A: Thyroid extract B: Thyroglobulin C: Thyroxine (T4) D: Triiodothyronine (T3)

Q15 : Which of the following clotting factor is involved only in extrinsic pathway ?

A: IX B: X C: II D: VII

Q16 : The duodenum secretes a hormone which has following effects except_______________?

A: Causes copious pancreatic juice rich in bicarbonate and poor in enzymes B: Increases gastric motility C: Causes gall bladder to contract and sphincter of oddi to relax D: Leads to meager flow of pancreatic juice rich in enzymes

Q17 : Which of the following body secretions is maximum______________?

A: Salivary B: Gastric C: Sweat D: Lacrimal

Q18 : The renal clearance of _______________?

A: Creatinine indicates glomerular filtration rate B: Inulin is lower than that of urea C: Chloride increases after in injection of aldosterone D: PAH continues to rise as the plasma concentration of PAH increases

Q19 : primary cause of bleeding disorder in liver damage is due to______________?

A: Decreased level of prothrombin B: Lack of vitamin K C: Platelet deficiency D: Lack of vitamin B

Q20 : Brush border is seen in________________?

A: Bowman’s capsule B: Proximal convoluted tubule C: Distal convoluted tubule D: Loop of Henle

Q21 : Two major types of muscle fibres are found in humans_____________?

A: white and brown B: White and yellow C: White and gray D: White and red

Q22 : Most of the sodium is reabsorbed in_____________?

A: PCT B: DCT C: Loop of henle D: Vasa recta

Q23 : the acrosome reaction occurs, when the sperm_____________?

A: Enters the uterine cavity B: Comes in contact with zone pellucida C: Penetrates corona radiate D: Penetrates cell membrane of oocyte

Q24 : Lymphocytes are located in each of the following tissues or organs EXCEPT one. The one exception is______________?

A: Brain B: Spleen C: Lymph nodes D: Thymus gland

Q25 : The normal A/G ratio in blood is______________?

A: 5:1 B: 2:1 C: 1:2 D: 1:1

Q26 : Proximal renal tubule is most permeable to _______________?

A: Sodium B: Potassium C: Bicarbonate D: Ammonia

Q27 : Increased blood viscosity and slow circulation causes______________?

A: RBC rouleax formation B: Increased plasma skimming C: Increased number of RBC in capillaries D: None

Q28 : Major portion of glomerular filtrate is absorbed in__________________?

A: Loop of Henle B: Distal convoluted tubule C: Collecting duct D: Proximal segment

Q29 : The anticoagulant of choice used in the blood bank is_______________?

A: Calcium oxalate B: Heparin solution C: Acid citrate dextrose solution D: Sodium fluoride

Q30 : Activation of which one of the following coagulation factors is not essential for hemostasis________________?

A: XII B: XI C: IX D: X

Q31 : Blood cells arise in bone marrow and are subject to______________?

A: Irregular renewal B: Regular renewal C: Infrequent renewal D: None of the above

Q32 : Ammonia in the kidney tubules is excreted in exchange for______________?

A: HCO3- B: Na+ C: CL- D: PO4-2

Q33 : 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

Q34 : Bile acids are derived from_____________?

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

Q35 : The contractile element in a skeletal muscle is present in______________?

A: Sarcolemma B: Sarcoplasm C: Myofibril D: Endomysium

Q36 : Thrombopoietin is produced by_________________?

A: Monocytes B: Liver C: Megakaryocyte D: Megakaryoblast

Q37 : 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

Q38 : Hypoxia is characterized by ___________?

A: Low arterial PO2 B: Intense chemoreceptor response C: Favorable response to 100% oxygen D: All of the above

Q39 : At high altitudes the following changes takes place except_______________?

A: Increase in respiratory rate B: Increases in depth of respiration C: Increase in oxygen carrying capacity of blood D: Increase in partial pressure of CO2

Q40 : 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

Q41 : Pancreas produce_____________?

A: Pepsinogen B: Chymotrypsinogen C: Hydrochloric acid D: All of the above

Q42 : A child with stunted growth with a stuffed – belly, and short stature with mental retardation is suffering from the deficiency of which of the following______________?

A: Thyroxine B: Growth hormone C: Rickets D: Parathyroid

Q43 : Ovulation is associated with sudden rise in______________?

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

Q44 : Paneth cells secrete which of the following ?

A: Antibacterial substance B: Lipase C: Maltase D: Secretin

Q45 : Enzymes, which play an important role in calcification are______________?

A: Enolase and Calcitonin B: Alkaline phosphatase and catalase C: Alkaline phosphatase and pyrophophatase D: Pyrophosphatase and carbonic anhydrase

Q46 : Site of RBC formation in 20 years old healthy male is____________?

A: Flat bones B: Long bones C: Liver D: Yolk sac

Q47 : False about blood brain barrier is_______________?

A: There are gaps between tight junctions at the active sites B: There are no gaps between active sites C: Less activity in the membrane D: Fibronectin provides a barrier for diffusion

Q48 : In Haldane effect CO2 dissociation curve is shifted to_____________?

A: Left B: Right C: Does not shift D: None of the above

Q49 : Which of the following cell type is not a precursor of erythrocyte____________?

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

Q50 : A decrease in the urine output is called_____________?

A: Dysuria B: Nocturia C: Oliguria D: Plyuria

Q51 : Most important function of albumin in body is_______________?

A: Oncotic pressure B: Drug transport C: Toxic transport D: Coagulation

Q52 : 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

Q53 : The oxygen tension of the mixed venous blood is______________?

A: 25 mm Hg B: 40 mm Hg C: 55 mm Hg D: 70 mm Hg

Q54 : CO2 is carried in the blood________________?

A: In combination with hemoglobin B: In physical solution in plasma C: In combination with plasma proteins D: All of the above

Q55 : Site of ADH action is______________?

A: Proximal tubule B: Loop of Henle C: Vasa recta D: Collecting tubule

Q56 : Aldosterone______________?

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

Q57 : Cephalic phase of gastric secretion is mediated by ______________?

A: Neuro hormones B: Vagus C: Hormones D: Gastric

Q58 : Negative BMR is observed with______________?

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

Q59 : Cardiac muscle contracts due to______________?

A: Extracellular Ca+2 B: Sarcoplasmic ca+2 C: Extracellular Na+ D: Intracellular Na+

Q60 : Which amongst the following is the gold standard for demonstrating hcG____________?

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

Q61 : Which of the following causes lysis of clot______________?

A: Fibrin B: Plasmin C: Hyaluronidase D: Coagulase

Q62 : Pharyngeal phase of deglutition_____________?

A: Is a reflex mechanism B: Vocal cords are closed C: Is a voluntary mechanism D: A and B

Q63 : The most significant immediate result of lowered serum calcium is_______________?

A: Weakened heart action B: Decalcification of bones C: Decalcification of teeth D: Hyperirritability of nerves and muscles

Q64 : Ventilation perfusion ratio is maximum in_______________?

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

Q65 : Muscle of expiration____________?

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

Q66 : Insulin increases the activity of___________?

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

Q67 : Which of them is not affected by vitamin K deficiency_____________?

A: B: Factor VII C: Factor II D: Factor VIII

Q68 : Blood coagulation is impaired in___________?

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

Q69 : Renin is released from the kidney in all except________________?

A: Sympathetic stimulation B: Decrease in the concentration of sodium ions in the proximal tubules C: Decrease in the concentration of sodium ions in the distal tubules D: Fall in the BP

Q70 : 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

Q71 : 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

Q72 : Embryonic hemoglobin is composed of________________?

A: Gamma and beta B: Epsilon and gamma C: Alpha and beta D: Gamma and alpha

Q73 : In an isotonic contraction of the muscle________________?

A: The muscle moves a load through a distance B: The muscle is not able to move the load C: The latent period of contraction is shorter than isometric contraction D: The length of muscle is increased

Q74 : Most potent stimulus for secretin is______________?

A: Dilattion of intestine B: Acid chyme C: Protein D: Fat

Q75 : Which of the following is not a vitamin K dependent procoagulant ?

A: Factor II B: Factor VII C: Factor IX D: Factor XI

Q76 : 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

Q77 : The hemoglobin % of a normal newborn is______________?

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

Q78 : Persons having anti- A and anti- B is agglutinins in their serum belong to which blood group_____________?

A: A B: B C: AB D: O

Q79 : 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

Q80 : Major basic protein is an important constituent of which leucocyte_____________?

A: Neutrophil B: Eosinophil C: Basophil D: Lymphocyte

Q81 : Alveolar O2 tension is______________?

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

Q82 : Which of the following agents in not likely to be found in plasma ?

A: Thrombin B: Fibrinogen C: Prothrombin D: Calcium ion

Q83 : At what temperature blood is stored______________?

A: -4°C B: 4°C C: 6°C D: 8°C

Q84 : The glomerular filtration rate of the human kidney may be determined by measuring the plasma clearance of______________?

A: PAH B: Urea C: Inulin D: Glucose

Q85 : The function common to neutrophils, monocytes & macrophages is______________?

A: Immune response B: Phagocytosis C: Liberation of histamine D: Destruction of old erythrocytes

Q86 : Clotting factor common to extrinsic and intrinsic pathway is_____________?

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

Q87 : Bone metabolism is controlled by ____________?

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

Q88 : IN acute infection which of the following is found_______________?

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

Q89 : Hemoglobin has______________?

A: Hemoglobin has______________? B: Four heme molecules and four polypeptide chains C: Four heme molecules, 2α and 2β chains D: One heme and one globin molecule

Q90 : Diuresis is caused by______________?

A: Mannitol B: Glycerol C: Glycerol D: All of the above

Q91 : The part of nephron” least permeable to water” is______________?

A: Proximal tubule B: Descending limb of loop of Henle C: Ascending limb of loop of Henle D: Collecting tubule

Q92 : During exercise_____________?

A: Cerebral blood flow increases if there is increase in systolic blood pressure B: Body temperature increases C: Blood flow to muscle increases after 1½ minute D: Lymphatic flow from muscle decrease

Q93 : Hormone released during increased stress is_____________?

A: Cortisol B: Thyroxine C: Growth hormone D: Somatostatin

Q94 : Regarding Golgi tendon organ true is ______________?

A: Senses dynamic length of muscle B: Involved in reciprocal innervation C: a- motor neuron stimulation D: Sense muscle tension

Q95 : Which hormone does not have corresponding release hormone produced in pituitary ?

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

Q96 : The alveolar ventilation in an individual with tidal volume: 600 ml, dead space 150 ml and respiratory rate of 15/ minute is_____________?

A: 2.5 lit/Min B: 4.0 lit /Min C: 6.75 Lit/Min D: 9 Lit/Min

Q97 : The intrinsic factor for vitamins B12 absorption is produced in the______________?

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

Q98 : The hormone having the maximum effect on granulation wound healing is____________?

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

Q99 : Oxytocin causes all accept_______________?

A: Lactogenesis B: Milk ejection C: Contraction of uterine muscle D: Myoepithelial cell contraction

Q100 : The major sign of hypoventilations_____________?

A: Cyanosis B: Dyspnea C: Hypercapnia D: Hypoxia

Free Physiology MCQs Mock Test Online with Answers

Time to prove what you know!

LAT Test

GAT Test

Contact Info

Free Physiology MCQs Mock Test Online with Answers

Subscribe our Newsletter

LAT Test

GAT Test

Contact Info