What is the significance of the presence of cartilagenous and smooth tissues in the respiratory passage way?

Answer 1

The cartilages are to keep your air passage from collapsing at any one point, which serves primarily to prevent suffocation.
The smooth tissues consist of tiny cilia, which help in trapping pathogens and dust in the air you inhale, thus helping to prevent irritation and infection. Smooth tissues are not within our autonomic control, which means you won't have to control them at all, explaining why breathing is not something we need to learn.
The smooth tissues also contain mucous membranes, which secrete mucus, keeping the respiratory passage moist, and at the same time also helping to fight infection by trapping air-borne particles and pathogens.

Answer 2

The cartilagenous tissues always try to maintain the shape of the nose enabling the free flow of air,similarly the cartilagenous rings found in trachea prevent the pipe from collapsing.
The smooth tissues makes the lungs elastic and spongy having
extra ordinary capacity to expand not only this it lubricate the internal lining and always maintain the temperature .