The red coloured, Fe Containing pigment present in the Erythrocytes is

1. Haemoglobin

2. Myoglobin

3. Globin

4. Albumin

The binding of Hb with Carbon dioxide forms

1. Methamoglobin

2. Carbamino-haemoglobin

3. Oxyhaemoglobin

4. none of these

More binding of CO₂ occurs when pCO₂ is _____ and pO₂ is ____

1. high, high

2. low, high

3. high, low

4. low, low

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

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

The maximum amount of air that a person can breathe out after a forced inspiration, under normal physiological conditions, would be about: