BREATHING AND EXCHANGE OF GASES Set 2

I < II < III < IV ✘ I < III < II < IV ✘ I < IV < III < II ✘ I < IV < II < III ✔ NULL ✔ NULL NULL

✘ ✘ ✘ ✔ NULL ✔ NULL NULL

Increased level, decreased temperature ✘ Decreased level, decreased temperature ✘ Increased level, increased temperature ✘ Decreased level, increased temperature ✔ NULL ✔ NULL NULL

is continuously diffused though tissues ✘ combines with to form ✘ In transport, buffers plays an important role ✘ is absorbed by WBC ✔ NULL ✔ NULL NULL

Decrease in partial pressure of oxygen ✘ Decrease in amount of oxygen ✘ Increase in carbon dioxide concentration ✘ All of the above ✔ NULL ✔ NULL NULL

Raise of or fall in pH decreases the oxygen affinity of haemoglobin ✘ Decrease of or fall in pH decreases the oxygen affinity of haemoglobin ✘ Raise of or increase in pH decreases the oxygen affinity of haemoglobin ✘ Shifting of the oxygen-haemoglobin curve to left ✔ NULL ✔ NULL NULL

Pollution ✘ Smog ✘ Cigarette smoking ✘ Sanitary condition ✔ NULL ✔ NULL NULL

I and II ✘ Only I ✘ IV and II ✘ Only II ✔ NULL ✔ NULL NULL

Hypoxia ✘ Asphyxia ✘ Pleuracy ✘ Anoxia ✔ NULL ✔ NULL NULL

0% ✘ 0% ✘ 1% ✘ 0% ✔ NULL ✔ NULL NULL