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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2012

Which one of the following is the correct statement for respiration in humans ?

( A ) About 90% of carbon dioxide $(CO_2)$ is carried by haemoglobin as carbamino haemoglobin
( B ) Workers in grinding and stone-breaking industries may suffer, from lung fibrosis
( C ) Cigarette smoking may lead to inflammation of bronchi
( D ) Neural signals from pneumotoxic centre in pons region of brain can increase the duration of inspiration

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