pCO₂ is high and pO₂ is low can be found in

1. alveoli

2. tissues

3. blood

4. heart

In alveoli,

1. pCO₂ is high and pO₂is low

2. pCO₂ is low and pO₂ is high

3. pCO₂ is low and pO₂ low

4. None of the above

The formation of Carbonic acid from Carbon dioxide and water has catalyzed the enzyme

1. Carbonic anhydrase

2. Carbonic anhydride

3. Carbonic hydrase

4. Both A and C

At tissue sites, partial pressure of CO_2­ is high due to _______ process.

1. Anabolic

2. catabolic

3. Both A and B

4. Oxidative

Carbonic anhydrase is present in

1. R.B.C

2. Plasma

3. Both A and B

4. Tissues

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

1. Hamburger Phenomenon

2. Chloride Shift

3. Haldane effect

4. Both A and B

Which of the following helps in the regulation of the respiratory rhythm?

1. Respiratory rhythm centre

2. Pneumotaxic centre

3. Aortic arch and carotid artery receptors

4. All of the above

The respiratory centre is highly sensitive for

1. CO_2­

2. O_2­

3. H⁺ ions

4. Both A and C

Aortic arch and carotid artery receptors cannot recognise changes in

1. CO_2­ Concentration

2. O_2­ Concentration

3. H⁺ ions Concentration

4. All of these

Pneumotaxic Centre is present in the

1. forebrain

2. midbrain

3. Hindbrain

4. Diencephalon