People who have migrated from the planes to an area adjoining Rohtang pass about six months backA. have more RBCs and their haemoglobin has a lower binding affinity to `O_(2)`B. are not [hyusically fit to play games like footballlC. suffer form altitude suckness with symptoms like nausea fatigue etc.D. lhave the usual RBC count but their haemoglobin has very high binding affinity to `CO_(2)`

People who have migrated from the planes to an area adjoining Rohtang

1.	People who have migrated from the planes to an area adjoining Rohtang pass about six months backA. have more RBCs and their haemoglobin has a lower binding affinity to `O_(2)`B. are not [hyusically fit to play games like footballlC. suffer form altitude suckness with symptoms like nausea fatigue etc.D. lhave the usual RBC count but their haemoglobin has very high binding affinity to `CO_(2)`
Answer» Correct Answer - A As a person moves up a hill the `pO_(2)` and total atmospheric pressure decreases.Decrease in 1`PO_(2)` due to the increasing altitude, stimulates the juxtaglomeruclar cells of kidney to secreate erythropotiin hormone which increases the number of RBCs (polycthemis) to compensate the supply of

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Which one of the following is the incorrect statement for respiration in humans ?A. Cigraette smoking may lead to inflammation of bronchiB. Neural signals from pneumotoxic centre in pons region of brain can increase the duration of inspirationC. Workers in grinding and stone breaking industries may surffer from lung fibrosisD. About 90% of cabon dioxide `(CO_(2))` is carried by haemoglobin as carbamino haemoglobin
People who have migrated from the planes to an area adjoining Rohtang pass about six months backA. have more RBCs and their haemoglobin has a lower binding affinity to `O_(2)`B. are not [hyusically fit to play games like footballlC. suffer form altitude suckness with symptoms like nausea fatigue etc.D. lhave the usual RBC count but their haemoglobin has very high binding affinity to `CO_(2)`
Two friends are eating together on a dinning table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement ofA. diaphragmB. neckC. tongueD. epiglottis
listed below are four respiratory capacities (A-D) and four jumbled respiratory volumes of a normal human adult `{:("Respiratory capacities" , - " " "Respiratory volumes"),("Residual volume", -" " "2500 mL"),("Vital capacit",- " ""3500 mL"),("Inspiratory reserve volume",-" "1200 mL),("Inspiratory capacity", -" " 4500mL):}` Which one of the following is the correct matching of two capacities and volumesA. (2)2500 mL.(3) 4500 mLB. (3) 1200 mL.(4)2500 mLC. (4) 3500 mL, (1) 1200 mLD. (1) 4500 mL, (2) 3500 mL
The quantity 1500 mL in the respiratory volumes of a normal human adult refers toA. maximum ari that can be breathed in and breathed outB. residual volumeC. expriatory reserve volumeD. Total lung capacity minus residual volume
Which two of the following changes ususally tend to occur in the plain dwellers when they move to high altitudes (3500 m or more)?A. 2 and 3B. 3 and 4C. 1 and 4D. 1 and 2
At high altitude the RBCs in the human blood willA. increase in sizeB. decrease in sizeC. increase in numberD. decrease in number
Carbonic anhydrase is mostly active inA. lymphocytesB. blood plasmaC. RBCD. leucocytes
Oxyghen dissociation curve of haemoglobin iusA. sigmoidB. hyperbolicC. linearD. hypobolic
In which disease, due to flattening of tracheal vessels, alveoli are deprived of oxygen " " Or Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar wallsA. pleurissyB. EmphysemaC. PneunoniaD. Asthma

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