Which of the following is higher in value?

1.	Amount of carbon dioxide delivered by 100 ml of blood at lungs than amount of oxygen delivered by 100 ml of blood at tissues
2.	Amount of carbon dioxide transported by hemoglobin than amount of oxygen transported by hemoglobin
3.	The diffusing capacity of carbon dioxide across the respiratory membrane than the diffusing capacity of oxygen across the respiratory membrane
4.	Alveolar ventilation than the minute ventilation

It is necessary that lungs must be present in anatomically air-tight chamber because: 

The conducting part of the human respiratory system is not involved in:

The amount of carbon dioxide that can diffuse through the diffusion membrane is much higher compared to that of oxygen because:

Pulmonary fibrosis is a pathological hallmark of:
1. Chronic obstructive lung disease
2. Bronchial asthma
3. Viral Pneumonia in children
4. Occupational lung diseases

Identify the incorrect statement regarding the enzyme carbonic anhydrase:

Under normal physiological conditions, what amount of oxygen is delivered to the tissues?

Regarding pulmonary capacities, the maximum volume of air a person can breathe in after a forced expiration can also be defined as:

Alveoli in the lungs are lined by:
1. a simple squamous epithelium.
2. a pseudostratified ciliated columnar epithelium.
3. a simple cuboidal epithelium.
4. a transitional epithelium.