Question

assertion:fluid part of blood after removal of corpuscels is called plasma
reason:main function of blood is to transport gases,hormones and food etc.
a)Both A and R are true and R is the correct explanation of A
b)Both A and R are true but R is not correct explanation of A
c)A is true but R is not true
d)A is false but R is true

Answer 1

Answer:

The blood transports CO²comparatively easily because of its higher solubility. About 5-7% of carbon dioxide is transported, being dissolved in the plasma of blood. The carbon dioxide produced by the tissues, diffuses passively into the blood stream and passes into red blood corpuscles and react with water to form H ² CO³The RBCs contain an enzyme carbonic anhydrase which accelerates this reaction. Therefore, when CO²Enters the RBCs carbonic acid is formed more rapidly and in larger quantity than in plasma. 5% of the total CO²production is carried as carbonicacid.The oxyhaemoglobinHbo²of the erythrocytes is not basic. The study of oxygen-haemoglobin dissociation curve and the effect on it due to change in pH and CO² concentration, is a certain proof of acidic nature of oxyhaemoglobin.The chloride ions diffuse from plasma into the erythrocytes to maintain ionic balance, when bicarbonate ions diffuse out from the RBCs into the plasma, this is called as "Hamburger's phenomenon or chloride shift".

Thus, from the above discussion it is clear that A, C and E are true, B and D are false.

Therefore, the correct answer is option A.

Explanation:

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