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Biology
Breathing and Exchange of Gases
53 questions from 29 papers, each with its answer.
- 53 questions
- 29 papers
- 1.5% of Biology
Pulmonary Volumes and Capacities
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Match List I with List II regarding respiratory volumes and capacities.
Pick the matching item from Column II for each row.
Column I
- A. Expiratory capacity
- B. Functional residual capacity
- C. Vital capacity
- D. Inspiratory capacity
Column II
- I. Expiratory reserve volume + Tidal volume + Inspiratory reserve volume
- II. Tidal volume + Expiratory reserve volume
- III. Tidal volume + Inspiratory reserve volume
- IV. Expiratory reserve volume + Residual volume
Correct answer: A → II, B → IV, C → I, D → III
Expiratory capacity = Tidal volume + Expiratory reserve volume Functional residual capacity = Expiratory reserve volume + Residual volume Vital capacity = Expiratory reserve volume + Tidal volume + Inspiratory reserve volume Inspiratory capacity = Tidal volume + Inspiratory reserve volume Correct match: A-II, B-IV, C-I, D-III.
Factors Favouring Oxyhaemoglobin Formation
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Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?In the alveoli, high $pO_2$, low $pCO_2$, lesser $H^+$ concentration and lower temperature are all favourable for the formation of oxyhaemoglobin. In the tissues, low $pO_2$, high $pCO_2$, high $H^+$ concentration and higher temperature favour dissociation of oxygen from oxyhaemoglobin. So high $pO_2$ and lesser $H^+$ concentration favour oxyhaemoglobin formation.
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