Free Physiology MCQs Mock Test Online with Answers

Q1 : Peristalsis involves coordinated contraction and relaxation______________?

A: Above and below the food bolus B: Lateral and medial to food bolus C: Dorsal and ventral to food bolus D: None of the above

Q2 : For heparin which of the following is ?

A: Inhibits conversion of fibrinogen to insoluble fibrin B: Interferes with action of thrombin C: Is released by macrophages D: Is released by mast cells

Q3 : Changes in biological activity occurring daily are referred as _________ rhythm?

A: Circadian B: Circa triginatan C: Circa sestin D: Circannual

Q4 : 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

Q5 : Aldosterone______________?

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

Q6 : Lysis of RBCs are seen in all of the following except__________?

A: Thalassemia B: Methotrexate therapy C: Obstructive jaundice D: Sickle cell anemia

Q7 : AB blood group antigen are known as ________ factors?

A: Duffy B: Landsteiner C: Rhesus D: Lutheran

Q8 : Activation of which one of the following coagulation factors is not essential for hemostasis________________?

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

Q9 : In PHC, which anticoagulant is used to send the blood sample for blood glucose_____________?

A: EDTA B: Heparin C: Potassium oxalate+ sodium fluoride D: Potassium oxalate

Q10 : 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

Q11 : The normal brown red color of feces results from the presence of_______________?

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

Q12 : 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

Q13 : Which of the following does not stimulate alveolar hyperventilation ?

A: Hypoxia B: Hypercapnia C: Acidosis D: Stretching of airways

Q14 : Bone metabolism is controlled by ____________?

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

Q15 : 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

Q16 : 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+

Q17 : Smoking causes_____________?

A: Ciliary motility B: Cellular hyperplasia C: Mucous secretion D: All of the above

Q18 : In a DNA molecule adenine always forms a linkage with______________?

A: Guanine B: Cytosine C: Thymine D: Uracil

Q19 : 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

Q20 : Amount of glucose absorbed in proximal convoluted tubule_______________?

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

Q21 : Albumin is_____________?

A: Chromo protein B: Nucleo protein C: Phospho protein D: Simple protein

Q22 : The percentage of body water is greater in_______________?

A: Male than in females B: Children than in adult C: Obese than in lean individuals D: old than in young objects

Q23 : All the following hormones are secreted by adrenal cortex except_______________?

A: Estriol B: Cortisol C: Corticosterone D: Aldosterone

Q24 : Normal adult person’s blood contains_____________?

A: 40% neutrophils B: 30% lymphocytes C: 20% eosinophils D: 10% basophils

Q25 : What is true about pneumothorax ?

A: Total chest wall diameter is increased B: Interpleural pressure becomes more negative C: The concentration of surfactant is reduced in alveoli D: Increased lung compliance

Q26 : Tendon (or) ligament is attached to a bone through ____________?

A: Tomes fibers B: Interstitial fibers C: Sharpey’s fibers D: Haversian fibers

Q27 : 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

Q28 : T- lymphocytes play a primary role in_________________?

A: Production of Antibodies B: production of lymphokines and delayed hypersensitivity C: Activation of complement system D: Immediate Hypersensitivity

Q29 : The best screening test for hemophilia is_____________?

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

Q30 : Upstroke of action potential would lead to________________?

A: Net current in an outward direction B: Cell interior becomes more negative C: Cell interior becomes less negative D: None of the above

Q31 : Vital capacity is a measure of________________?

A: Tidal volume B: Inspiratory reserve volume plus expiratory volume C: Tidal volume plus inspiratory reserve volume plus expiratory reserve volume D: Expiratory reserve volume plus reserve volume

Q32 : 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

Q33 : A child is below the third percentile for height. Growth velocity is normal, but chronologic age is more than skeletal age. The most likely diagnosis is______________?

A: Constitutional delay in growth B: Genetic short stature C: Primordial dwarfism D: Hypopituitarism

Q34 : Alveolar O2 tension is______________?

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

Q35 : The principal site for granulocytic hemopoiesis in the adult human is________________?

A: The liver B: The spleen C: Red bone marrow D: Yellow bone marrow

Q36 : 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

Q37 : Noradrenaline is differentiated from adrenaline by increasing___________?

A: Heart rate B: Cardiac output C: Peripheral resistance D: All of the above

Q38 : To check objective pain response, which is best used method_______________?

A: Facial pain scale B: Knee jerk reflex C: H- Reflex D: R III Reflex

Q39 : _________ is an example for rapidly acting neurotransmitter?

A: Somatostatin B: Calcitonin C: . Substance P D: Glycine

Q40 : Inability of exchange of oxygen through lung tissue if known as____________?

A: Anoxic anoxia B: Anoxia C: Histotoxic hypoxia D: Ischemic hypoxia

Q41 : The type of hypoxia present in high attitude is_____________?

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

Q42 : Glucagon is secreted by ____________?

A: Alpha cells of pancreas B: Beta cells of pancreas C: Gamma cells of pancreas D: None of the above

Q43 : 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

Q44 : The most important action of Secretin is to_____________?

A: neutralize the acid from the stomach B: increase secretion of bicarbonates by pancreas C: decrease gastric secretion D: Cause contraction of pyloric sphincter

Q45 : Regarding myxedema the following are true except______________?

A: Swollen, oedematous look of the face B: Impotency, amenorrhea C: B.M.R increased by 30 -45% D: Dullness, loss of memory

Q46 : Which of the following is not a cause of secondary polycythemia ?

A: High Altitude B: Myeloproliferative changes C: Pheochromocytoma D: Cerebellar hemangioblastoma

Q47 : Oxygen affinity is increased by all except_________________?

A: Alkalosis B: Hypoxia C: Increased HbF D: Hypothermia

Q48 : Macula dense in kidney is located in relation to______________?

A: PCT B: DCT C: Afferent arteriole D: Efferent arteriole

Q49 : The study of the electrical activity of the muscle is_______________?

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

Q50 : Function of ADH is________________?

A: Water reabsorption B: Water excretion C: Na+ absorption D: K+ secretion

Q51 : 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

Q52 : Bile color is due to_____________?

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

Q53 : Decreased MCHC is found in_____________?

A: Microcytic hypochromic anemia B: Megaloblastic anemia C: Sideroblastic anemia D: Vit B12 deficiency

Q54 : Which of the following hormones act via cAMP ?

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

Q55 : 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

Q56 : Thyroxine causes all the following except______________?

A: Decreased cell metabolism B: Increased oxygen consumption C: Increased pulmonary ventilation D: Increased basal metabolism

Q57 : following are the features of cretinism, except_____________?

A: Pot- belly B: Idiotic look C: Normal intelligence D: Stunted growth

Q58 : Best stimuli for secretion is______________?

A: Protein B: Acid C: Fat D: Bile

Q59 : Bilirubin is conjugated with which of the following ?

A: Glycine B: Glutamine C: Acetyl CoA D: Glucuronic acid

Q60 : Potassium is maximum in_____________?

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

Q61 : Tubuloglomerular feedback occurs in______________?

A: ADH secretion in collecting duct B: Constant solute load on distal tubule C: Macula densa D: Balance between ascending and descending loop of henle

Q62 : Carbonic anhydrase in the kidney tubular cells is known to be associated with_____________?

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

Q63 : Immune complexes are removed from blood by _____________?

A: B cell B: Basophil C: Plasma cell D: Kupffer cell

Q64 : Gastric secretion is stimulated by all the following except_____________?

A: Secretin B: Gastric distension C: Gastrin D: Vagal stimulus

Q65 : Intracellular and interstitial body fluids have similar______________?

A: Total osmotic pressure B: Colloid osmotic pressure C: Chloride ion concentrations D: Potassium ion concentrations

Q66 : 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)

Q67 : Citrate is a useful anticoagulant because of its ability to_____________?

A: Buffer basic groups of coagulation factors B: Bind factor XII C: Bind vitamin K D: Chelate calcium

Q68 : 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

Q69 : All are features of skeletal muscle except______________?

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

Q70 : Serum is______________?

A: Plasma- clotting factors B: Plasma- fibrin C: Blood – RBC D: Blood – all cellular elements

Q71 : 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

Q72 : Which of them is not affected by vitamin K deficiency_____________?

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

Q73 : Which of the following is not a vitamin K dependent procoagulant ?

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

Q74 : Acute bacterial pyogenic infection manifests as_________________?

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

Q75 : Carbon monoxide poisoning causes_______________?

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

Q76 : Drumstick is found in_______________?

A: Neutrophils B: Lymphocytes C: Monocytes D: Platelets

Q77 : Production of bile takes place in____________________?

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

Q78 : Hormone released during increased stress is_____________?

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

Q79 : Increase in partial pressure of CO2 leading to release of oxygen to the tissues is________________?

A: Haldane effect B: Bohr effect C: Breur effect D: Hamburger effect

Q80 : IN the adrenal gland, androgens are produced by the cells in the____________?

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

Q81 : Which among the following is also called” peak less” insulin analog ?

A: Insulin lispro B: Insulin glargine C: Insulin aspart D: Lente insulin

Q82 : 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

Q83 : Mineral essential for Hb synthesis_______________?

A: Copper B: Sodium C: Potassium D: Phosphorus

Q84 : Oxygen affinity decreases in_________________?

A: Hypoxia B: Hypothermia C: HbF D: Increased pH

Q85 : Hemostasis depends upon all the following, EXCEPT_______________?

A: Calcium B: Prothrombin C: Vitamin B D: Vitamin K

Q86 : Which of the following cell type is not a precursor of erythrocyte____________?

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

Q87 : The hormone , which stimulates uterus contraction and lets down milk, is_____________?

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

Q88 : Pharyngeal phase of deglutition_____________?

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

Q89 : Secondary granules of neutrophils contain______________?

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

Q90 : Inulin clearance closely resembles_____________?

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

Q91 : Bile acids are derived from_____________?

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

Q92 : Ammonia in the kidney tubules is excreted in exchange for______________?

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

Q93 : 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

Q94 : Histiocytes are_____________?

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

Q95 : Which of the following hormones increase the sensitivity of heart to epinephrine________________?

A: Parathyroid B: Insulin C: Thyroid D: Glucagon

Q96 : Blood cells arise in bone marrow and are subject to______________?

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

Q97 : Steroid hormones are believed to enter target cells via_______________?

A: Facilitated diffusion B: Carrier – mediated endocytosis C: Cholesterol lined pores in the plasma membrane D: Simple diffusion

Q98 : 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

Q99 : Removal of parathyroid gland produces the following changes EXCEPT_________________?

A: Decline plasma calcium level B: Decrease in plasma phosphate level C: Neuromuscular hyperexcitability D: hypo calcemic tetany

Q100 : 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

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