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| 211)The combination of oxygen with haemoglobin can be increased mostly by | |||
| Increasing CO2 concentration in air | Decreasing CO2 concentration in blood | ||
| Decreasing O2 concentration in blood | Increasing O2 concentration in air | ||
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| 212)Who explained the effect of CO2 concentration on dissociation of oxyhaemoglobin ? | |||
| Yapp | G S Carter | ||
| Christian Bohr | William Hoar | ||
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| 213)When the oxygen haemoglobin dissociation curve shifts toward right? | |||
| On decrease of Temperature | On decrease of Acidity | ||
| On decrease of pH | On decrease of carbon dioxide concentration | ||
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| 214)If carbon dioxide level gets increased in the blood, it favours | |||
| Unloading of oxygen in the blood | Loading oxygen in the blood | ||
| Decreased availability of oxygen to tissue | None of these | ||
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| 215)Which of the following is true when oxyhaemoglobin dissociation curves are drawn for maternal and foetal haemoglobin. | |||
| Foetal curve will be on the right side | Maternal curve will be on the right side | ||
| It will depend upon PCO2 level | Both will overlap each other | ||
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| 216)Chloride shift reverse is occured during | |||
| External respiration | Internal respiration | ||
| Anaerobic respiration | Cellular respiration | ||
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| 217)What percentage of carbon dioxide is carried or transported by Hb? | |||
| 10% | 23% | ||
| 75% | 82% | ||
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| 218)Which phenomenon occurs between RBCs and plasma during transportation of carbon dioxide? | |||
| Absorption | Adsorption | ||
| Osmosis | Chloride shift | ||
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| 219)Which of the following is opposite of Bohr's effect? | |||
| Hamburger's phenomenon | Haldane's effect | ||
| Herring Breuer reflex | None of these | ||
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| 220)The impulse for voluntary muscles for forced breathing starts in | |||
| Medulla | Cerebellum | ||
| Cerebrum | Vagus nerve | ||
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| 221)Which one of the following is respiratory control centre? | |||
| Cerebrum | Pons | ||
| Medulla oblongata | Both pons nad medulla oblongata | ||
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| 222)Mark the wrong statement | |||
| Pneumotaxic centre increases the depth of breathing | Expiratory centre lies in pons and inspiratory centre lies in medulla | ||
| The inspiratory centre increases the strength of contraction of rib muscles | Breathing movements are caused by change in concentration of CO2 in the blood | ||
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| 223)The switch off point of inspiration is controlled by | |||
| Pneumotaxic centre | Apneustic centre | ||
| Cerebrum | Pons varoli | ||
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| 224)What is not possible when pneumotaxic centre is sending a strong signal? | |||
| Increase breathing rate | Decrease duration of inspiration | ||
| Complete filling of lungs | Decrease duration of expiration | ||
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| 225)Which one of the following prevents overstretching of the lungs? | |||
| Herring- Breuer reflex | Bohr's effect | ||
| Haldane's effect | Conditioned reflex | ||
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