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NEET 2014
Exam
NEET
Year
2014
Subject
Zoology
Chapter
Breathing and Exchange of Gases

NEET 2014 · Zoology · Breathing and Exchange of Gases

Approximately seventy percent of carbon-dioxide absorbed by the...

Approximately seventy percent of carbon-dioxide absorbed by the blood will be transported to the lungs:

Options

  1. Aas bicarbonate ions
  2. Bin the form of dissolved gas molecules
  3. Cby binding to R.B.C
  4. Das carbamino-haemoglobin

Correct answer

A. as bicarbonate ions

Step-by-step solution

About 70% of CO2C{O}_{2} is converted into bicarbonates inside RBCs in presence of an enzyme carbonic anhydrase. The bicarbonates are transported as salts of sodium and potassium in blood plasma as well as RBCs.

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