Types of Respiration System (3)

The insect respiratory structure (3)

The trachea branches out to form finer tubes called the tracheole

The insect respiratory structure (4)

Tracheole is the respiratory surface

The insect respiratory structure (5)

Some insects have air sacs in their trachea system

The insect respiratory structure (6)

Air sacs speed up the delivery of respiratory gas during active body movements

Adaptation of tracheole of insects (1)

A large number of tracheoles provides a large total surface area for the exchange of gases

Adaptation of tracheole of insects (2)

The tracheole wall of insects which is thin and moist allows oxygen gas to diffuse into the cells while carbon dioxide quickly diffuses out of the cells into the tracheole

The respiratory structure of fish

Is the gills

Gills

Are made up of a line of filament that is supported by the gill arch

Adaptation of fish filaments (1)

The filament has many thin and flat projections called lamella

Adaptation of fish filaments (2)

A large number of filaments and lamellae gives a large total surface area for an efficient gaseous exchange process

Biology

Question

Types of Respiration System (3)

Types of Respiration System (3)