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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
501. |
Which of the following is not a character of respiratory surface?A. Thin, permeable to gasesB. ExtensiveC. Least vascularD. Moist |
Answer» Correct Answer - C | |
502. |
In mature mammalian erythrocytes, the respiration isA. AerobicB. AnaerobicC. Sometimes aerobic and sometimes anaerobicD. Absent |
Answer» Correct Answer - B | |
503. |
Which is true?A. `H^(+)` ons releasedfrom carbonic acid combine with haemoglobin to form haemoglobinic acid.B. Oxyhaemoglobin of erythrocytesis alkalineC. More than 70 % of carbondioxide is transferred from tissueto lungs as carbamino compounds.D. In healthyperson,haemoglobin content is more than 25 g/ 100 ml. |
Answer» Correct Answer - A `H^(+)` ions released from carbonic acid combine with haemoglobin to form haemoglobinic acid. |
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504. |
The rate and depth of respiration shall increase whenA. Oxygen concentration increasesB. `CO_(2)` concentration increases in alveolar airC. Bicarbonate concentration increasesD. Bicarbonate concentration decreases. |
Answer» Correct Answer - B | |
505. |
Assertion: Pneumotaxic center controls the rate of respiration . Reason: Primarly, it controls the switch off point of inspiration.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)B. If both Assertion & Reason are trye but the reason is not the correct explanation of the assertion , then mark (2)C. If Assertion is true statement but Reason is fakse, then mark (3)D. If both Assertion and Reason are false statements, then mark (4) |
Answer» Correct Answer - A | |
506. |
Assertion (A) : Severe Acute Respiratory Syndrome (SARS) originated in China. Reason `(R)`: China is the most populated country of the world. |
Answer» Correct Answer - b the world health organization(WHO) reported china as the origin place of SARS. Several other countries have reported SARS cases after travel to china and its nearby areas/countries in Asia or close contact with a person affected with SARS . microbiologists of Hongkong central University initially detected a virus meatpneumovirus and identified as corna virus causative agent of SARS. it is very known fact that the china is the most populated country. this fact cannot be correlated with SARS. |
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507. |
Asthma is characterised byA. Spasm in bronchial muscleB. Damage in diaphragmC. Alveolar wall degradationD. Pain in lungs |
Answer» Correct Answer - A Asthma is characterised by spasm in bronchial muscle. |
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508. |
Read the following statements and identify the one which is incorrect.A. The upper part of larynx, i.e, glottis is covered by epiglottis during swallowing of food.B. Apart from diaphragm and intercostal muscles, transversus abdominis and rectus abdominis also aid in respirationC. The pons have two centres for regulation breathing . I.e pneumotaxic an apnustic centre.D. Pncumtaxic centre releases neural signal, which reduces the expiration process thereby regulating respiratory rate |
Answer» Correct Answer - D | |
509. |
Amount of `CO_(2)` in expired air is aboutA. 0.0004B. 0.0003C. 0.21D. 0.045 |
Answer» Correct Answer - D `CO_(2)` content in atmosphere is 0.04% while in expired air it is 4.5%. In alveolar air, `CO_(2)" is "6%, O_(2)" is "14% "and "N_(2)` is 80% |
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510. |
The oxygen toxicity is related withA. Blood poisoningB. Collapse of alveolar wallsC. Failure of ventilation of lungsD. Both (a) and (b) |
Answer» Correct Answer - c oxygen toxicity develops when pure oxygen is breathed in for a prolonged period. This is formed due to progressive failure of ventilation of lungs. |
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511. |
Which one o the following is called inspiratory muscle in mammals?A. pleural muscleB. external intercostal muscleC. internal intercostal muscleD. abdominal muscles |
Answer» Correct Answer - B | |
512. |
Which is correct ?A. a human lung has 1000 alveoliB. respiatory centres are not affected by `CO_(2)`C. during inspiration the lungs act as suction pumpD. in human vital capactiy is just double the expriatory volume |
Answer» Correct Answer - C | |
513. |
Expiration involvesA. relaxation of diaphragm and intercostal musclesB. contraction of diaphragm and intercostal musclesC. contraction of diaphragm musclesD. contraction of intercostal muscles |
Answer» Correct Answer - A | |
514. |
The inspiratory and expiratory centres in man are located inA. ponsB. cerebellumC. medulla oblongataD. one in pons and the other in cerebellum |
Answer» Correct Answer - C | |
515. |
Inspiratory centre is located inA. CerebrumB. CerebellumC. HypothalamusD. Medulla oblongata |
Answer» Correct Answer - D Inspiratory centre is located in medulla oblongata. |
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516. |
Medullary inspiratory centre is underA. nervous controlB. physical controlC. chemical controlD. electric control |
Answer» Correct Answer - C | |
517. |
During inspiration in mammals the sternum movesA. forward and upwardB. backward and upwardC. forward and downwardD. backward and downward |
Answer» Correct Answer - A | |
518. |
Diffusion of gases along the respiratory surface occurs becauseA. `pCO_(2)` is more in alveoli than bloodB. `pO_(2)` is more in alveoli than bloodC. `pCO_(2)` is more in blood than in tissuesD. `pO_(2)` is more in blood than in tissue |
Answer» Correct Answer - B | |
519. |
Energy currency of the cell isA. 10 AMPB. ATPC. CarbohydratesD. NAD |
Answer» Correct Answer - B | |
520. |
During inspiration ,A. The diaphragm gets raised and ribs get loweredB. Both diaphragm and ribs get loweredC. Ribs get raised and diaphragm get loweredD. The diaphragm gets flattered and ribs get raised. |
Answer» Correct Answer - D | |
521. |
Why is CO poisonous for man ?A. CO affects the nerves of the lungsB. CO affects the diaphragm and intercostal musclesC. CO reacts with oxygen reducing percentage of `O_(2)` in airD. Haemoglobin combines with CO instead `O_(2)` and the product cannot dissociate |
Answer» Correct Answer - D | |
522. |
In human beings, rid cage and sternum move upwardly and outwardly duringA. exerciseB. suppen back injuryC. expirationD. inspiration |
Answer» Correct Answer - D | |
523. |
Which structures are respondsible for breathing process ?A. Tranchea and alveoliB. larynx and bronchiC. Ribs and intercostal musclesD. intercostal muscles and diaphragm |
Answer» Correct Answer - D | |
524. |
Even when there is no air in it, human trachea does not collapse due to the presence ofA. Bony ringsB. Turgid pressureC. Chitinous ringsD. Cartilaginous rings |
Answer» Correct Answer - D | |
525. |
What can determine the percentage of oxygen carried by Hb?A. pH of bloodB. Percentage of `CO_(2)`C. Partial pressure of oxygenD. All of the above |
Answer» Correct Answer - D | |
526. |
The correct order of structures through which the air passes in the body isA. Nasal cavity, larynx, trachea, bronchi air sacsB. Bronchi, nasal cavity, laryns, trachea air sacsC. Larynx, bronchi, nasal cavity, trachea air sacsD. Nasal cavity, trachea, larynx, bronchi air sacs. |
Answer» Correct Answer - A | |
527. |
Hamburger phenomenon is also known asA. Sodium shiftB. Chloride shiftC. Lead shiftD. None of these |
Answer» Correct Answer - B | |
528. |
Hamburger phenomenon is also known asA. Calcium shiftB. Bohr effectC. Chloride shiftD. `Na^(+)-K^(+)` pump |
Answer» Correct Answer - C | |
529. |
Hamburger phenomenon explainsA. chloride shiftB. formatioo of `HCO_(3)`C. breathing mechanismD. oxygen satureaton of hb |
Answer» Correct Answer - A | |
530. |
Haemoglobin is having maximum affinity withA. Carbon monoxideB. Carbon dioxideC. OxygenD. Ammonia |
Answer» Correct Answer - A | |
531. |
Hamburger phenomenon is also known asA. Bicarbonate shiftB. Chloride shiftC. Potassium shiftD. All of these |
Answer» Correct Answer - B | |
532. |
Why is CO poisonous for man ?A. CO effects the nerves of the lungs.B. CO affects the diaphragm and intercostal muscles.C. CO reacts with oxygen reducing percentage of `O_(2)` in air.D. Hemoglobin combines with CO instead `O_(2)` and the product cannot dissociate. |
Answer» Correct Answer - D | |
533. |
Respiration mechanism is controlled byA. Central nervous systemB. autonomic nervous systemC. Sympathetic nervous systemD. parasympathetic nervous system |
Answer» Correct Answer - A | |
534. |
Under which condition the oxygen dissociation curve will move towards the right ?A. Low `pO_(2)`B. High `CO_(2)`C. High `H^(+)` concentration and higher temperatureD. All of these |
Answer» Correct Answer - D | |
535. |
Which of the following factorss ar favorable for the formation of oxyhemoglobin ? (a) High `p_(O_(2))`, low `p_(CO_(2))` (b) Lesser `H^(+)` concentration, lower temperature ( c) Low `p_(O_(2))`, high `CO_(2)` (d) High `H^(+)` , higher temperatureA. (A) onlyB. (A) and (B)C. (B) and (C)D. (C) and (D) |
Answer» Correct Answer - B | |
536. |
the figure shows a diagrammatic view of human respiratory system with labels A, B , C and D . Select the option which given correct identification and main function and / or characteristic A. B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbingB. C- Alveoli -Thin walled vascular bag like structures for exchange of gases.C. D- Lower end of lungs -Diaphragm pulls it down during inspiration .D. A -Trachea -Long tube supported by complete cartilaginous rings for conducting inspired air. |
Answer» Correct Answer - B | |
537. |
CO is more toxic than `CO_(2)` because it `:`A. affects the nervous systemB. damages lungsC. reduces the oxyge carrying capacity of haemoglobinD. Forms acid with water |
Answer» Correct Answer - C | |
538. |
Total lung capacity isA. 1200 mLB. 2400 mLC. 500 mLD. 5800 mL |
Answer» Correct Answer - D | |
539. |
Hiccups can be best described asA. Forceful sudden expirationB. Jerky incomplete inspirationC. Vibration of the soft palate during breathingD. Sign of indigestion |
Answer» Correct Answer - B | |
540. |
Which menbrane covers the lungs and provide protection?A. PericardiumB. Renal capsuleC. PleuraD. Epineurium |
Answer» Correct Answer - C | |
541. |
If the thoracic wall but not lungs is punctruesA. the lungs get inflatedB. the man dies as the lungs get collapsedC. the breathing rat e decreasesD. the breathing rate icreases |
Answer» Correct Answer - B | |
542. |
The combination of `O_(2)` with hamoglobin can be increased mostly byA. Increasing `O_(2)` concentrated in airB. Decreasing `O_(2)` concentrated in blood.C. Increasin `CO_(2)` concentration in airD. Decreasing `CO_(2)` concentration in blood. |
Answer» Correct Answer - D | |
543. |
Statement 1 : Mammals can eat while breathing. Statement 2 : Mammals have negative-pressure breath-ing.A. Both statement 1 and 2 correct.B. Statement 1 is correct but statement 2 is incorrect.C. Statement 1 is incorrect but statement 2 is correct.D. Both statement 1 and 2 incorrect. |
Answer» Correct Answer - A The negative pressure breathing in mammals allows them to eat and breathe at the same time. |
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544. |
vocal cords are situated atA. PharynxB. LarynxC. GlottisD. Bronchial tube |
Answer» Correct Answer - B | |
545. |
Body tissues obtain oxygen from haemoglobin because of its dissociation in tissues caused by A. Low oxygen concentration and high carbon dioxide concentrationB. Low oxygen concentrationC. Low carbon dioxide concentrationD. High carbon dioxide concentration |
Answer» Correct Answer - A Body tissues obtain oxygen from haemoglobin because of its dissociation in tissues caused by low oxygen concentration and high carbon dioxide concentration. |
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546. |
vocal cords are situated atA. LarynxB. PharynxC. GlottisD. Bronchial tube |
Answer» Correct Answer - A | |
547. |
Body tissues obtain oxygen from haemoglobin because of its dissociation in tissues caused byA. Low oxygen concentration and high carbon dioxide concentrationB. Low oxygen concentrationC. Low carbon dioxide concentrationD. High carbon dioxide concentration |
Answer» Correct Answer - D | |
548. |
Which energy is consumed in breathing?A.  MechanicalB. Chemical C.  BioelectricityD. Physical |
Answer» Correct Answer - B In normal breathing, inspiration is the active process while expiration is the passive process. |
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549. |
Select the correct option with regard to the mode of respiration in various animals.A. Gills- CrustaceansB. Skin- InsectsC. Trachea- AnnelidsD. Lungs - Arachmids |
Answer» Correct Answer - A | |
550. |
Lungs have a large number of alveoli forA. Having spongy texture and proper shapeB. More surface are for diffusion of gasesC. More space for increasing volume of inspired airD. More nerve supply. |
Answer» Correct Answer - B | |