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.
| 351. |
Inner surface of bronchi, bronchioles and fallopian tubes is lined byA. Columnar epitheliumB. Squamous epitheliumC. Cubical epitheliumD. Ciliated epithelium |
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Answer» Correct Answer - D Inner surface of bronchi, bronchioles and fallopian tubes is lined by ciliated epithelium. |
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| 352. |
The respiratory or the exchange part of the rrespiratory system is formed byA. From external nostrils up to the alveoliB. From external to initial bronchiolesC. From trachea to terminal bronchiolesD. Alveoli and duct of alveoli |
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Answer» Correct Answer - D The respiratory or the exchahge part of the respiratory system is formed by alveoli and duct of alveoli. |
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| 353. |
Which of the following comprises the lungs? a. Tracheae, b. `1^(@)"bronchi, c. "2^(@)" bronchi, d. "3^(@)` bronchi, e. initial bronchioles, f. terminal bronchioles, g. duct of alveoli, h. alveoliA. a, b, c, d and eB. a, b, c, d, e and fC. a, b, c, d, e, f and gD. a, b, c, d, e, f, g and h |
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Answer» Correct Answer - A The trachcae, primary, secondary and tertiary bronchi, and initial bronchioles are supported by incomplete cartilaginous rings. Trachea is supported by C-shaped cartilagenous rings made of hyaiine cartilage. The cartilagenous rings are incomplete posteriorly and prevent collapsing the wall of trachea. |
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| 354. |
Inspiration occurs when intra-pulmonary pressure isA. Higher than atmospheric pressureB. Lower than atmospheric pressureC. Equal to atmospheric pressureD. Zero compared to atmospheric pressure |
| Answer» Correct Answer - B | |
| 355. |
Chest movement are inconspicuous duringA. Normal breathingB. Abdominal breathingC. Thoracic breathingD. Both (1) and (2) |
| Answer» Correct Answer - D | |
| 356. |
Which of the following muscles contracts during normal expiration ?A. Internal intercostal musclesB. DiaphragmC. Abdominal musclesD. None of these |
| Answer» Correct Answer - D | |
| 357. |
Haemoglobin is having maximum affinity withA. COB. `CO_(2)`C. `O_(2)`D. `NH_(3)` |
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Answer» Correct Answer - A  Haemoglobin has maximum affinity for CO (200-250 times higher as compared to `O_(2)`). |
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| 358. |
Which of the following sts of conditions promotes the dissociation of oxygen from haemoglobin ?A. Low `pO_(2) ,"high " pCO_(2), " high " H^(+)`B. High ` pO_(2) , " high " pCO_(2) , "low " H^(+) `C. High ` pO_(2) " low" pCO_(2) " low " H^(+)`D. Low ` pO_(2) , " low " pCO_(2) , " low " H^(+)` |
| Answer» Correct Answer - A | |
| 359. |
Bicarbonate ion is produced insideA. LymphocytesB. ErythrocytesC. NeutrophilsD. Basophils |
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Answer» Correct Answer - B See Answer for Q.87. Bicarbonate ion is produced inside erythrocytes. |
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| 360. |
Where are lungs situated in human body?A. Abdominal cavityB. Thoracic cavityC. Coelomic cavityD. Pleural cavity |
| Answer» Correct Answer - B | |
| 361. |
What is the last step involved in respiration?A. Diffusion of gasesB. BreathingC. Utilisation of `O_(2)` by body cells and resultant releasa of `CO_(2)`D. Transport of gases |
| Answer» Correct Answer - C | |
| 362. |
The process by which chloride ions pass into R.B.C. and bicarbonate ions pass out is calledA. Bicarbonate shiftB. Chloride shiftC. Buffer systemD. Enzyme shift |
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Answer» Correct Answer - b to maintain electrostatic neutrality of plasma, many chloride ions diffuse from plasma into RBCs and bicarbonate ions pass out. The choride content of RBCs increases when oxygenated blood becomes deoxyfenated. This termed as chloride shift or Hamburge shift. |
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| 363. |
One of the following is not a respiratory pigment.A. HemoglobinB. ChlorocruorinC. HemocyaninD. Hemozoin |
| Answer» Correct Answer - D | |
| 364. |
What are the factors on which vital capacity of lungs depend ? |
| Answer» Squamous epithelium | |
| 365. |
What is respiratory valume ? |
| Answer» The quantity of air which our lungs can hold or expel under different conditions. | |
| 366. |
StatementsA. statement (a) s correct and is responsible for sttement (b)B. statement (a) is not correct but statement (b) is correctC. both statements (a) and (b) are wrongD. statement (a) is correct but not ivolved in statement (b) |
| Answer» Correct Answer - A | |
| 367. |
What is the value of tidal volume in a normal healthy man per minute ? |
| Answer» It is about 6000 ml to 8000 ml of air per minute. | |
| 368. |
Enzyume involved in `CO_(2)` tranport blood isA. carboxylaseB. carboxykinaseC. carboic anhydraseD. none of these |
| Answer» Correct Answer - C | |
| 369. |
Carbon dioxide is transproted from tissues to respirtatory surface by onlyA. plasma onlyB. RBCs and WBCsC. plasma and RBCsD. Red blood corpuscles only |
| Answer» Correct Answer - C | |
| 370. |
`CO_(2)` is carried in blood asA. Sodium bicarbonateB. Sodium carbonateC. Potassium carbonateD. Magnesium carbonate |
| Answer» Correct Answer - A | |
| 371. |
Oxygen is transproted in blood mainly byA. leucocytesB. erthrocytesC. serumD. blood plasma |
| Answer» Correct Answer - B | |
| 372. |
What happens when the pressure within the pulmonary cavity is more than the atmospheric air ? |
| Answer» Expulsion of air from the lungs occurs. | |
| 373. |
Pneumotaxic centre is present onA. CerebrumB. CerebellumC. Medulla oblongataD. Pons varolii |
| Answer» Correct Answer - D | |
| 374. |
Name the additional muscles which help in increasing the strength of breathing . |
| Answer» Correct Answer - Abdominal muscles | |
| 375. |
Pneumotaxic centre is present onA. CerebellumB. CerebrumC. Medulla oblongataD. Pons varolii |
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Answer» Correct Answer - D Pneumotaxic centre occurs in pons varolii. |
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| 376. |
Muscles which help in respiration areA. Sternum and petrohyalB. Sternohyal and petrohyalC. Jugal and tendonsD. none of these |
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Answer» Correct Answer - b stemphyal and petrohyal helps in respiration of frog. Constration of stemohtal muscle during breathing in frog lowers floor of oral cabity. While contration of petrohyal muscle during beathing in frog raises the floor of buccal cavity. |
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| 377. |
The exchange of materials between blood and interstitial fluid is byA. arteriesB. veinsC. capillaries of lungsD. arterioles |
| Answer» Correct Answer - C | |
| 378. |
Assertion : Chloride shift is exchange of `Cl^(-)` of plasma and `HCO_(3)^(-)` of RBCs.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true and reason is not the correct explanation of assertionC. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - B Chloride shift is the movement of chloride ions `(Cl)` into red blood cells. Carbon dioxide reacts with water to form carbonic acid in the red blood cells. The carbonic acid then dissociated into hydrogen carbonate ions `(HCO_(3)^(-))` and hydrogen ions `(H^(+))`. The plasma membrane is relatively permeable to negative ions. Therefore, the hydrogencarbonate ions diffuse out of the cell into the plasma, leaving the hydrogen ions, which create a net positive charge, this is neutralised by the diffusion of chloride ions from the plasma into the cell. |
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| 379. |
Respiration center is present inA. CerebrumB. HypothalamusC. CerebellumD. Medulla oblongata |
| Answer» Correct Answer - D | |
| 380. |
Oxygen carrying capacity of human blood is reduced due ot the pollution ofA. `CO_(2)` on RBCsB. `CO`C. `SO_(2)`D. `O_(3)` |
| Answer» Correct Answer - B | |
| 381. |
Which one of the following is capable of carrying oxygen ?A. PlasmaB. BloodC. SerumD. Lymph |
| Answer» Correct Answer - B | |
| 382. |
Which of the following is shifted in chloride - shift ?A. `O_(2) and CO_(2)`B. Bicarbonate ionsC. `CO_(2)`D. `O_(2)` |
| Answer» Correct Answer - B | |
| 383. |
Which one of the following mammalian cells is not capable of metabolising glucose to carbon-dioxide aerobically ?A. WBCB. RBCC. Liver cellsD. Unstriated muscle cells |
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Answer» Correct Answer - B Mammalian RBC is incapable of metabolising glucose to carbon dioxide aerobically as RBC lack mito chondira. |
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| 384. |
Oxygen carrying capacity of human blood is reduced due to the pollution ofA. `CO_(2)`B. `CO`C. `SO_(2)`D. `O_(3)` |
| Answer» Correct Answer - B | |
| 385. |
Oxygen bindingto haemoglobinA. Directly proportional to `CO_(2)` concentrationB. Directly proportional to CO concentrationC. Inversely proportional to `CO_(2)` concentrationD. Independent of CO concentration |
| Answer» Correct Answer - C | |
| 386. |
Oxy-haemoglobin dissociates into oxygen and deoxy-haemoglobin atA. low ` O_(2)` pressure in tisseB. high ` O_(2)` pressure in tissueC. equal ` O_(2)` pressure inside and outside tissueD. all times irrespective of ` O_(2)` pressure |
| Answer» Correct Answer - A | |
| 387. |
(a) What are the end products in anaerobic respiration ? How much energy is released in it ? Is it considered wasteful process ? (b) Does anaerobic respiration occur in aerobes ? Give example . |
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Answer» (a) In yeasts ,ethyl alcohol and carbon dioxide are the en products . In some bacteria and parasitic worms (Ascaris tapeworm), lactic acid is the end product. Anaerobic respiration yields only about 5% of the energy available in glucose. Thus it is a wasteful process. (b) yes . The aerobes also carry on anaerobic metabolism in certain tissues e.g., skeletal tissues . |
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| 388. |
A large proportion of oxygen is left unused the human blood even after its uptake by the body tissue. This `O_(2)`A. acts as a reserve during muscular exerciseB. raises the `pco_(2)` of blood to 75 mm of hgC. is enough to keep oxyhaemoglobin sat uration at 96%D. helps in releasing more `O_(2)` to the epithelial tissues |
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Answer» Correct Answer - A The percentage of blood that gives up its oxygen as it passes through the tissure capillaries is called the utilization coefficient .The normal value of this is 25 prcent i.e 25% of the oxygenated haemoglobin gives its oxygen to the tissues during stenous exercise the utilization coefficient in the entire body increase to 75 to 75% so that more oxygen is given to the tissues |
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| 389. |
fill in the blanks : (a) `"………"` ml of oxygen is transported per decilitre of blood. (b) Total lung capacity is `"………."` (c ) There are `"………."` pairs of spiracles in cockroach. ( d ) lungs is enclosed by `"…………"` membrane . ltbgt (e ) `"........."` bacteria cause pneumonia. |
| Answer» (a) 19.4 ml , (b) 3400 ml -4800 ml, (c ) 10, (d) Pleural (e ) Streptococcus pneumoniae. | |
| 390. |
capacity of human lung for airA. 3000 mlB. 1500 mlC. 1000 mlD. 500 ml |
| Answer» Correct Answer - a | |
| 391. |
the vital capacity of the lung significs the volume of airA. beathed in during normal inspirationB. Breathed out with frocible expirationC. breathed in with forcible insporationD. With deep inspiration and forcible expiration |
| Answer» Correct Answer - d | |
| 392. |
Oxygen carrying capacity of blood is A. 0.2B. 0.3C. 0.4D. 0.5 |
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Answer» Correct Answer - A See Answer for Q.44 of topic 8. |
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| 393. |
In mammals how much `CO_(2)` is transported as bicarbonates of soidum and potassium in the bloodA. 5-10%B. 10-90%C. 70-72%D. 90-95% |
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Answer» Correct Answer - c 7% of `CO_(2)` is transported in dissplved from in the plasma . 23% as carbaminohaemoglobin and 70% in the from of bicarbonates. |
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| 394. |
Which is correct? A. Respiratory centres are not affected by `CO_(2)`B. In human vital capacity is just double the expiratory volume.C. A human lung has `10^(3)` alveoli.D. During inspiration the lungs act as a suction pump. |
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Answer» Correct Answer - D During inspiration the lungs act as suction pump. |
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| 395. |
The cells which do not respire . A.  Epidermal cellsB. Sieve cellsC. Cortical cells D. Erythrocytes |
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Answer» Correct Answer - D The erythrocytes do not respire. |
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| 396. |
The amount of `O_(2)` transported in a dissolved state through plasma is approximatelyA. 0.97B. 20-25%C. 0.07D. 0.03 |
| Answer» Correct Answer - e | |
| 397. |
A major percentage (97%) of `O_(2)` is transported by RBCs in the blood. How does the remaining percentage (3%) of `O_(2)` transported?A. 3 percentB. 97 percentC. 70 percentD. 7 percent |
| Answer» Correct Answer - B | |
| 398. |
A major percentage (97%) of `O_(2)` is transported by RBCs in the blood. How does the remaining percentage (3%) of `O_(2)` transported? |
| Answer» In simple solution form through plasma. | |
| 399. |
Oxygen is transported to every cell of the body throughA. RBCB. WBCC. RBC and WBCD. RBC and hormones |
| Answer» Correct Answer - a | |
| 400. |
Acquiring an oxygen debt is evidence thatA. `O_(2)` cannot be stored in tissueB. Aerobic respiration is more complex than glycolysisC. Lactic acid can be converted into glycogenD. Anaerobic process are slower than aerobic processes |
| Answer» Correct Answer - a | |