Free Physiology MCQs Mock Test Online with Answers

Q1 : 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

Q2 : Potassium is maximum in_____________?

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

Q3 : The primary effect of calcitonin is__________________?

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

Q4 : Diuresis is caused by______________?

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

Q5 : Which of the following hormones does not affect growth ?

A: Oxytocin B: Somatotropins C: Thyroid hormone D: Estrogen

Q6 : Excess of cortisol causes______________?

A: Conn’s syndrome B: Cushing ‘s syndrome C: Acromegaly D: Diabetes insipidus

Q7 : Normal prothrombin time is____________?

A: 5-7 sec B: 10-20 sec C: 30 sec D: 10 sec

Q8 : In conn’s disease, there is an excess of______________?

A: Adrenaline B: Aldosterone C: Cortisol D: Noradrenaline

Q9 : Hypercalcemia associated with malignancy is most often mediated by _____________?

A: Parathyroid hormone ( PTH) B: Parathyroid hormone related protein (PTHrP) C: Interleukin – 6 ( IL- 6) D: Calcitonin

Q10 : In Haldane effect CO2 dissociation curve is shifted to_____________?

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

Q11 : Meiotic division of male germ cells commence_______________?

A: During intra – uterine life B: just before birth C: by around 6 years after birth D: by around 16 years

Q12 : In which segment of the nephron does tubular fluid has the highest osmolarity ?

A: Henle’s loop B: Distal tubule C: Distal tubule D: Collecting duct

Q13 : Stomach accommodates the meal by______________?

A: Deceptive relaxation B: Receptive relaxation C: Reactive relaxation D: None of the above

Q14 : 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

Q15 : 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

Q16 : Increased blood viscosity and slow circulation causes______________?

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

Q17 : Formation of a small volume of concentrated urine in dehydration is associated with____________?

A: More reabsorption in the PCT B: More concentration in loop of Henle C: More reabsorption of DCT and collecting ducts D: All of these

Q18 : 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

Q19 : In children, hypothyroidism causes_____________?

A: Acromegaly B: Cretinism C: Gigantism D: Myxodedema

Q20 : The end plate potential is characterized by_____________?

A: Propagation B: All or none law C: Depolarization D: Hyper polarization

Q21 : Bone metabolism is controlled by ____________?

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

Q22 : Which of the following causes lysis of clot______________?

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

Q23 : AB blood group antigen are known as ________ factors?

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

Q24 : 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

Q25 : Reverse T3 is__________________?

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

Q26 : Which hormone does not have corresponding release hormone produced in pituitary ?

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

Q27 : Shift of the oxygen dissociation curve to right is caused by the following factors EXCEPT_______________?

A: Increased 2,3 BPG B: Increased temperature C: Increased concentration of carbon – di – oxide D: Increased concentration of oxygen

Q28 : Endocrine disorder is the primary cause of______________?

A: Acromegaly B: Albright’s syndrome C: Paget’s disease D: Fibrous dysplasia

Q29 : 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

Q30 : 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

Q31 : Following are local hormones except___________?

A: Insulin B: Heparin C: Bradykinin D: Acetylcholine

Q32 : Glucagon is secreted by ____________?

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

Q33 : Carbon monoxide poisoning causes_______________?

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

Q34 : 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

Q35 : Trousseau’s sign and chovstek’s sings are positive in___________?

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

Q36 : Histiocytes are_____________?

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

Q37 : 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

Q38 : 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

Q39 : Within which parts of a gastric gland are chief cells located_____________?

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

Q40 : Gut associated lymphoid tissue ( GALT) is primarily located in______________?

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

Q41 : Ventilation perfusion ratio is maximum in_______________?

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

Q42 : Hypoxia is characterized by ___________?

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

Q43 : Which of the following is not useful for coagulation______________?

A: Plasmin B: Thrombin C: Calcium D: Fibrin

Q44 : A reliable screening test for platelet function is_______________?

A: CT B: PT C: Thrombin D: Clot retraction time

Q45 : 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

Q46 : The normal A/G ratio in blood is______________?

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

Q47 : 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

Q48 : Functional unit of kidney is______________?

A: Nephron B: Glomerulus C: Collecting ducts D: Loop of Henle

Q49 : Oxygen affinity is increased by all except_________________?

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

Q50 : CO2 is transported in plasma as_____________?

A: Bicarbonate B: Carbomino compounds C: Dissolved D: CO

Q51 : PAKMCQS.COM GK Mcqs Current Affairs Pak Study ISLAMIC STUDIES Everyday Science OTHER Quiz Mode (Sponsored by Sir Tauqeer) Join Sir Tauqeer Whatsaap group Physiology Mcqs Physiology Mcqs for preparation - PakMcqsPhysiology Mcqs for preparation. These Mcqs are helpful for Medical students. Physiology Multiple Choice Questions (MCQ) for entrance examinations and other competitive examinations for all Experienced, Freshers and Students. PHYSIOLOGY MCQS 1. Cardiovascular system Mcqs 6. Central Nervous System Mcqs 2. Endocrinology Mcqs 7. Git and Liver Mcqs 3. Hematology Mcqs 8. Muscles and Neuromusclar Junction Mcqs 4. Renal System Mcqs 9. Respiratory System Mcqs 5. Miscellaneous Mcqs 10. – Formation of a small volume of concentrated urine in dehydration is associated with____________? 0 A. More reabsorption in the PCT B. More concentration in loop of Henle C. More reabsorption of DCT and collecting ducts D. All of these Read More Details about this Mcq: The glomerular filtration rate of the human kidney may be determined by measuring the pl

A: 180 mg/dl B: 325 mg/dl C: 375 mg/dl D: 375 mg/dl

Q52 : The primary site of action of antidiuretic hormone is on the_______________?

A: Distal tubules and collecting ducts in the kidney B: Afferent arterioles of the glomeruli C: Thirst center in the hypothalamus D: Osmoreceptors in the hypothalamus

Q53 : Bile color is due to_____________?

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

Q54 : Ammonia in the kidney tubules is excreted in exchange for______________?

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

Q55 : Which one of the following is a precursor of both gonadal and adrenocortical hormones_____________?

A: Progesterone B: Cortisol C: Testosterone D: Corticosterone

Q56 : Which of the following is called hunger hormone______________?

A: Epinephrine B: Glucagon C: Pituitary D: Thyroxine

Q57 : 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

Q58 : Christmas factor is_____________?

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

Q59 : Osteoclasts are inhibited / modified and regulated by____________?

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

Q60 : Erythropoietin is produced in the_______________?

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

Q61 : Cardiac muscle contracts due to______________?

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

Q62 : following are the features of cretinism, except_____________?

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

Q63 : 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

Q64 : Function of ADH is________________?

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

Q65 : The approximate amount of air left in the lungs after maximal forced expiration in a normal woman______________?

A: 0.5 L B: 2.0 L C: 1.1 L D: 1.8 L

Q66 : The number of muscle fibers in a motor unit are least in______________?

A: Laryngeal muscles B: Pharyngeal muscles C: Muscles of middle ear D: Extraocular muscles

Q67 : In which of the following diseases would you expect to find an increase in thickness of the respiratory membrane ?

A: Emphysema B: Asthma C: Pulmonary artery thrombosis D: Skeletal abnormalities of the chest

Q68 : Which of the following vitamins is necessary for maturation of blood precursor cells________________?

A: Vit- A B: Thiamine C: Riboflavin D: Cyano cobalamine

Q69 : IN the adrenal gland, androgens are produced by the cells in the____________?

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

Q70 : Blood cells arise in bone marrow and are subject to______________?

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

Q71 : Aldosterone production is controlled by _____________?

A: Anterior pituitary gland B: Posterior pituitary gland C: Hypothalamus D: Adrenal gland

Q72 : All are features of skeletal muscle except______________?

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

Q73 : The supraoptic nucleus of the hypothalamus is believed to control secretion of which of the following hormones ?

A: Antidiuretic hormone B: Oxytocin C: Growth hormone D: Adreno corticotrophic hormone

Q74 : Secretin does not cause _______________?

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

Q75 : Features of hypothyroidism does not include______________?

A: Obseity B: Hypertension C: High TSH levels D: Increased risk of infections

Q76 : The catecholamines secreted by adrenal medulla______________?

A: Increases the blood glucose level by favoring glycogenolysis in blood and muscle cells B: Decrease the level o free fatty acids and ketone bodies C: Increase the splanchnic blood flow D: Are under the control of parasy

Q77 : 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

Q78 : Albumin is_____________?

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

Q79 : Urine urobilinogen is absent in_______________?

A: Obstructive jaundice B: Viral hepatitis C: Hemolytic jaundice D: All of the above

Q80 : Mineral essential for Hb synthesis_______________?

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

Q81 : Which one of the following is a regulatory protein of the muscle ?

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

Q82 : Amount of glucose absorbed in proximal convoluted tubule_______________?

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

Q83 : 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

Q84 : 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

Q85 : The universal blood recipient group is_________________?

A: O- Ve B: O+ Ve C: AB- Ve D: AB+ Ve

Q86 : The hyperosmolarity of the renal medulla is due to increased content of_____________?

A: K+ B: Na+ C: Glucose D: NH4+

Q87 : Thyroxine causes all the following except______________?

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

Q88 : Major portion of glomerular filtrate is absorbed in__________________?

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

Q89 : 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

Q90 : 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

Q91 : The only fixed cell of the connective tissue_______________?

A: Histiocyte B: Lymphocyte C: Neutrophils D: Mast cell

Q92 : Best stimuli for secretion is______________?

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

Q93 : The kidney secrete all of the following hormones except_____________?

A: Renin B: Erythropoietin C: Vasopressin D: 1,2,5 Dihydroxy cholecalciferol

Q94 : Which of the following agents in not likely to be found in plasma ?

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

Q95 : Arterial PO2 is reduced in_____________?

A: Anemia B: KCN poisoning C: Pulmonary hypoventilation D: CO poisoning

Q96 : Differential white blood cell counts in the laboratory are useful in the diagnosis of_______________?

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

Q97 : 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

Q98 : During inspiration when the diaphragm contracts, the intrapleural pressure becomes_____________?

A: More negative B: Less negative C: Positive D: Equal to the intra alveolar pressure

Q99 : In jaundice, there is an unconjugated hyperbilirubinemia which is most likely due to __________?

A: Hepatitis B: Cirrhosis C: Obstruction of bile canaliculi D: Increased break down of red cells

Q100 : 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

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