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Breathing and Exchange of Gases MCQs for NEET — Zoology Questions with Answers

Practice free Breathing and Exchange of Gases (Zoology) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

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How many heme group are present in Hb molecule

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Explanation

Each chain contains one heme group.

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pCO₂ is high and pO₂ is low can be found in

alveoli

tissues

blood

heart

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Explanation

Refer NCERT, Heading 17.4.2, para 1, page-274

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In alveoli,

pCO₂ is high and pO₂is low

pCO₂ is low and pO₂ is high

pCO₂ is low and pO₂ low

None of the above

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Explanation

Refer NCERT, Heading 17.4.2, para 1, page-274

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The formation of Carbonic acid from Carbon dioxide and water is catalysed the enzyme

Carbonic anhydrase

Carbonic anhydride

Carbonic hydrase

Both A and C

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Explanation

Refer NCERT, Heading 17.4.2, para 1, page-275

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At tissue sites, partial pressure of CO₂ is high due to_______ process.

Anabolic

catabolic

Both A and B

Oxidative

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Explanation

Refer NCERT, Heading 17.4.2, para 1, page-275

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Carbonic anhydrase is present in

R.B.C

Plasma

Both A and B

Tissues

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Explanation

Refer NCERT, Heading 17.4.2, para 1, page-275

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The chloride ions diffuse into the erythrocytes to maintain the electrochemical neutrality, this phenomenon is called

Hamburger Phenomenon

Chloride Shift

Haldane effect

Both A and B

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Explanation

Hamburger Phenomenon is also called Chloride Shift.

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The respiratory centre is highly sensitive for

CO₂

O₂

H⁺ ions

Both A and C

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Explanation

Refer NCERT, Heading 17.5, para 1, page-275

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Aortic arch and carotid artery receptors cannot recognise changes in

CO₂ Concentration

O₂Concentration

H⁺ ions Concentration

All of these

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Explanation

Refer NCERT, Heading 17.5, para 1, page-275

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Pneumotaxic Centre is present in the

forebrain

midbrain

Hindbrain

Diencephalon

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Explanation

Refer NCERT, Heading 17.5, para 1, page-275 Pons is a part of Hindbrain.

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