Biology MCQs

Page No. 37

The increase in pH of blood has ________ effect on the oxygen carrying capacity of haemogolobin?


aplus ve


b– ve


cNo


dAll of these


View Answer plus ve

The glycolate produced diffuses into the membrane bounded organelles called____________?


aGlyoxisomes


bPeroxisomes


cLysosomes


dMitochondria


View Answer Peroxisomes

The air spaces may comprise upto _________ of total volume of leaf surface?


a30%


b20%


c40%


d50%


View Answer 40%

There are _________ stomata per square cm of leaf surface in Tobacco plants?


a1200


b12000


c100,000


d1000


View Answer 100,000

Important factors which affect the capacity of haemoglobin to combine with oxygen is


aTemperature


bCarbon dioxide


cpH


dAll of these


View Answer All of these

Water is _________ times viscous than air?


a50


b1000


c5000


d8000


View Answer 50

Haemoglobin can be almost completely oxygenated by an oxygen pressure of __________ of mercury.


a10 mm


b60 mm


c10 cm


d100 mm


View Answer 100 mm

Oxygen contents per liter of air is____________?


a10 ml


b100 ml


c200 ml


d100ml


View Answer 200 ml

The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood.


a10 ml


b20 ml


c30 ml


d40 ml


View Answer 20 ml

Of the following, which one is better respiratory medium___________?


aAir


bWater


cSoil


dNone of these


View Answer Air

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