Andhra Pradesh Board Solutions for Exercise 2: FOR IGNITED MINDS

In some people, lungs have ‘larger’, but ‘fewer alveoli’ due to damage to alveolar partition tissue. What do you call such a disorder?

Do alpha and beta chains of haemoglobin carry the same amount of oxygen per chain?

What is the percentage of oxygen that is released from saturated RBC in a resting person and what is the percentage of saturation of haemoglobin of the blood that returns to the heart.

In two different studies it was found that the dissociation of oxyhaemoglobin is $60\%$ and $40\%$ at the same partial pressure of oxygen. Do you think it is possible? If so what could be the reason(s) for such a shift in the oxyhaemoglobin dissociation curve ?

Why do people who suffer from carbon monoxide poisoning tend to die?

What is the enzyme that plays an important role in the transport of ${\mathrm{CO}}_2$ by blood?

Will the two oxyhaemoglobin dissociation curves of foetus and mother be similar or different? Can you give reasons for your opinion?

Evaluate the correctness of the following statement: If a person breathes in and out rapidly for some time (hyperventilation), his body allows him to hold his breath for a longer period than in the case of normal ventilation(for example when he is submerged in water). Is that due to $\left(i\right)$ increase in ${\mathrm{O}}_2$ levels in his body $\left(ii\right)$ decreased level of ${\mathrm{CO}}_2$ in his body at that time?