InterviewSolution
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InterviewSolution
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.
| 451. |
Respiration center is present inA. CerebellumB. CerebrumC. Medulla oblongataD. Hypothalamus |
| Answer» Correct Answer - C | |
| 452. |
`CO_(2)` dissociates from carbamino haemoglobin whenA. `PCO_(2)` is high and `PO_(2)` is lowB. `PO_(2)` is high and `PCO_(2)` is lowC. `PCO_(2)` and `PO_(2)` are equalD. none of the above. |
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Answer» Correct Answer - B High `PO_(2)` and low `PCO_(2)` in the lung blood capillaries favours separations of `CO_(2)` from carbominohaemoglobin. |
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| 453. |
How much percentage of `CO_(2)` is carried by haemoglobin as carbamino-haemoglobin?A. 0.07B. 0.7C. 20-25%D. 0.97 |
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Answer» Correct Answer - C Nearly 20-25 per cent of `CO_(2)` is transported by RBCs whereas 70 per cent of it is carried as bicarbonate (Sodium bicarbonate). About 7 per cent of `CO_(2)` is carried in a dissolved state through plasma. |
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| 454. |
Lungs have a large number of alveoli forA. Having spongy texture and proper shape B. More surface area for diffusion of gases C. More space for increasing volume of inspired airD. More nerve supply |
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Answer» Correct Answer - B Lungs have a large number of alveoli for more surface area for diffusion of gases. |
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| 455. |
Percentage of oxygen supplied by haemoglobin isA. 0.97B. 1C. 0.49D. 0.03 |
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Answer» Correct Answer - A Percentage of oxygen supplied by haemoglobin is 97%. |
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| 456. |
Match the following columns. A. 1,2,3,4B. 2,3,4,1C. 4,3,2,1D. 3,2,1,4 |
| Answer» Correct Answer - B | |
| 457. |
Match the following columns . A. 3,4,1,2B. 1,2,3,4C. 4,3,2,1D. 2,1,4,3 |
| Answer» Correct Answer - A | |
| 458. |
Haemoglobin is having maximum affinity withA. `CO_(2)`B. COC. `O_(2)`D. `NH_(3)` |
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Answer» Correct Answer - B Haemoglobin have 250 times more affinity for CO as compared to ` O_(2)` , forming a cherry -red, compound carboxyhaemoglobin. |
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| 459. |
Increased body temperature makes oxygen haemoglobin dissociation curve toA. Shift rightB. Shift leftC. Become parabolicD. Become hyperbolic |
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Answer» Correct Answer - A See Answer for Q.85 from topic-4. Increased body temperature makes oxygen haemoglobin dissociation curve to shift right. |
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| 460. |
Vital capacity of lungs isA. IRV + ERV + TVB. IRV + ERV + TV- RVC. IRV + ERV + TV + RVD. IRV + ERV |
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Answer» Correct Answer - A  Vital capacity of lung is equal to IRV + ERV + TV. |
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| 461. |
If a man from sea coast goes to Everest peak thenA. His breathing and heart beat will increaseB. His breathing and heart beat will decreaseC. His respiratory rate will decreaseD. His heart beat will decrease |
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Answer» Correct Answer - a At high alitude , `PO_(2)` of alveolar air falls becouse of low `O_(2)` tension of tissues ,so `O_(2)` is absorbed very quickly from alveoli , thus , inceasing beathing rate. Heart beat also icreases to supply required amount of `O_(2)` to tissues. |
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| 462. |
Hiccough (hiccup) is due to activity ofA. Intercostal musclesB. F ood in air tractC. Diaphragm/Jerky incomplete inspirationD. Inadequate oxygen in environment |
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Answer» Correct Answer - C  Hiccough (hiccup) is due to activity of diaphragm/ Jerky incomplete inspiration. |
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| 463. |
The toxic effect of carbon monoxide is due to its greater affinity for haemoglobin as compared to oxygen approximately byA. 2 timesB. 20 timesC. 200 timesD. 1000 times |
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Answer» Correct Answer - c The affinity of heamoglobin for CO is approximately 210 times greater than `O_(2)`. |
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| 464. |
By which mechanism, oxygen is released out from lungs to cellsA. DiffusionB. Facilitated diffusionC. TranspirationD. Osmosis |
| Answer» Correct Answer - A | |
| 465. |
`CO_(2)` is transported mainly as `:-`A. PlasmaB. Carbonic acidC. BicarbonateD. Carboxyhemoglobin |
| Answer» Correct Answer - C | |
| 466. |
By which mechanism, oxygen is released out from lungs to cellsA. DiffusionB. Facilitated diffusionC. Transpiration D. Osmosis |
| Answer» Correct Answer - A | |
| 467. |
Residual volume isA. Greater than vital capacityB. Greater than tidal volumeC. LesserGreater than IRVD. than tidal volume |
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Answer» Correct Answer - B Residual volume (1100-1200 ml) is greater than tidal volume (500 ml). |
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| 468. |
Ventilation / respiratory control is present inA. Medulla oblongataB. CerebellumC. CerebrumD. Diencephalon |
| Answer» Correct Answer - A | |
| 469. |
Ring - like cartilage of larynx is known asA. Thyroid cartilageB. Arytenoid catilageC. Cricoid cartilageD. Cartilage of Santorini |
| Answer» Correct Answer - C | |
| 470. |
Which of the following factors is not favourable for the formation of oxyhaemoglobin ?A. High `PO_(2)`B. Low temperatureC. Less `H^(+)` concentrationD. High `PCO_(2)` |
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Answer» Correct Answer - D Low `PCO_(2)` favours the formation of oxyhaemoglobin. |
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| 471. |
Facttor which is favourable for the formation of oxyhaemoglobin |
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Answer» Correct Answer - (A) Lesser `H^(+)` concentration (B) High `pO_(2)` (C) Low `pCO_(2)` |
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| 472. |
Respiration is the physilogical process in whichA. Breathing occursB. Breathing and external respiration occurC. Breathing, external respiration and cellular respiration occurD. Only inspiration occurs |
| Answer» Correct Answer - c | |
| 473. |
Fill up the blanks in the following paragraph by selecting the correct option. The movement of air into and out of the lungs is carried out by creating a (i).____ between the lungs and the atmosphere. Inspiration can occur if intra-pulmonary pressure is (ii).____ Expiration takes place when the intra-pulmonary pressure is (iii).____ than the atmospheric pressure. Expiration takes place when the intra-inspiration is initiated by the (iv).____ of diaphragm which (v).____the volume of thoracic chamber in the antero-posterior axis.A. `{:("(i)",(ii),(iii),(iv),(v)),("concentration gradient","less","higher","relaxation","increases"):}`B. `{:("(i)",(ii),(iii),(iv),(v)),("concentration gradient","higher","less","contraction","decrease"):}`C. `{:("(i)",(ii),(iii),(iv),(v)),("pressure gradient","higher","less","relaxation","decrease"):}`D. `{:("(i)",(ii),(iii),(iv),(v)),("pressure gradient","less","higher","contraction","increase"):}` |
| Answer» Correct Answer - D | |
| 474. |
The nerve impulses which stimulate the intercostal muscles and diaphragma and thus permit breathing, originate in theA. CerebellumB. PonsC. HypothalamusD. Medulla oblongata |
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Answer» Correct Answer - d the respiratory centres that control the breathing mechanism are present in medulla oblongata. These respiratory centres are expiratory centre and inspiratory centre. |
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| 475. |
High percentage of `CO_(2)` anti very low percentage of `O_(2)` may make a person unconsolous dueA. EupnoeaB. EmphysemaC. SuffocationD. Asphyxia |
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Answer» Correct Answer - D High percentage of `CO_(2)` and very low percentage of `O_(2)` may make a person unconscious due to asphyxia. |
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| 476. |
Number of alveoli in human lung is aboutA. One millionB. More than two millionsC. More than five millionsD. More than seven millions |
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Answer» Correct Answer - d the number of alveoli in human lungs has been estimated to be approximately 750 million , exposing a surface area of nearly `100m^(2)`. |
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| 477. |
Haemoglobin value for a healthy adult male isA. `10g//100 ml`B. `11g // 100 ml`C. `12 g // 100 ml`D. `14-15g//100 ml` |
| Answer» Correct Answer - D | |
| 478. |
The exchange of gases between blood capilaries and alveoli in the lung is thrughA. simple diffusionB. active transportC. osmosisD. facilited diffusion |
| Answer» Correct Answer - A | |
| 479. |
Glotties is a opening in the floor ofA. mouthB. tracheaC. pharynxD. diaphragm |
| Answer» Correct Answer - C | |
| 480. |
The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the option given below, the one part A, B, C or D is correctly identified along with its functions A. B : Red blood cell - transport of `CO_(2)` mainlyB. C : Arterial capillary - passes oxygen to tissuesC. A : alveolar cavity - main site of exchange of respiratory gasesD. D : Capillary wall - exchange of `O_(2) " and " CO_(2)` takes place here |
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Answer» Correct Answer - c A is the alveolar cavity which is the main site of exchange of respiratory gases. |
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| 481. |
Which is the first step of respiration ? |
| Answer» Breathing , i.e., inhalation and exhalation of air. | |
| 482. |
Food and air pathways are divided atA. larynxB. pharynxC. stomachD. oesophagus |
| Answer» Correct Answer - B | |
| 483. |
Assertion: Chemosensitive area is situated adjacent to l the rhythm centre which ishighly sensitiveo `CO_(2)` and 1 hydrogen ions. Reason: Receptors associated with aortic arch and carotidis artery can recognise changes in `O_(2)" and "H^(+)` concentration and send necessary signals to the rhythm centre for remedial actions.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - C Chemosensitive area is situated adjacent to the rhythm. centre which is highly sensitive to `CO_(2)` and hydrogen ions. Receptors associated with aortic arch and carotid artery can recognise changes in `CO_(2)" and "H^(+)` concentrated and send necessary signals to the rhythm centre for remedial actions. |
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| 484. |
What is glottis ? |
| Answer» Glottis is the opening at the upper part of larynx . | |
| 485. |
Common passage for food and air_____ |
| Answer» Correct Answer - Pharynx | |
| 486. |
Centre which can moderate the function of respiratory rhythm centre is located in: |
| Answer» Correct Answer - Pons | |
| 487. |
Chemosensitive area sends signals to make necessary adjustments for respiration to: |
| Answer» Correct Answer - Respiratory rhythm centre | |
| 488. |
Glottis is the opening of_____ |
| Answer» Correct Answer - Larynx | |
| 489. |
Structure which is sound production is made up of_____ |
| Answer» Correct Answer - Cartilages | |
| 490. |
To which substance chemosensitive area is highly sensitive ? |
| Answer» `CO_(2) and H^(+)` ions | |
| 491. |
Origin of right and left primary bronchi occurs at the level of______ |
| Answer» Correct Answer - `T_(5)` | |
| 492. |
What happens to bronchi and bronchiloles during asthma ? |
| Answer» Inflammation occurs in bronchi and bronchioles . | |
| 493. |
Give two examples of occupational respiratory disorders . |
| Answer» Silicosis and asbestosis. | |
| 494. |
why is surface area for exchange of gases decreased during Emphysema ? |
| Answer» If is decreased due to breakdown of alveolar walls . | |
| 495. |
Persons living at high altitude will haveA. high alveolar capacityB. more number of erythrocystesC. haemoglobin curve shift towards rightD. All of the above |
| Answer» Correct Answer - D | |
| 496. |
Rate of respiration is directly proportional toA. Concentration of oxygen in bloodB. Concentration of carbon dioxide in bloodC. Oxygen in tracheaD. Diaphragm expansion |
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Answer» Correct Answer - b Due to direct chemical contral on respiratory centres , `CO_(2)` stimulates respiratory centres in CNS. |
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| 497. |
What is correct about human respiration?A. About 90% of `CO_(2)` is carried by haemoglobin as carbaminohaemoglobin.B. Neural signals from pneumatoxic centre of pons can increase duration of inspirationC. Workers in grindingand stone breaking industries may suffer from lung fibrosis.D. Cigarette smokingleads to inllammation of bronchi. |
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Answer» Correct Answer - C Â See Answer for Q. 11 7 of topic-6 |
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| 498. |
Which of the following is a paired cartilage ?A. thyroid cartilageB. Epiglottis carlitageC. Cricoid cartilage carilageD. Arytenoid cartilage |
| Answer» Correct Answer - D | |
| 499. |
Respiration system in human comprises ofA. lungsB. gillsC. respiratory tractD. both (a) and © |
| Answer» Correct Answer - D | |
| 500. |
Which of the following characters is exclusive to mammalian respiratory system ?A. Presences of noseB. presence of glottisC. Respiration by lungsD. None of the above |
| Answer» Correct Answer - D | |