Respiration System

Gaseous exchange takes place in the following structures except

• Tracheae

• Lungs

• Alveoli

• Chloroplast

Respiration is an essential life process providing the living cells with ____

• Oxygen

• Sugars

• Energy

• Carbon dioxide

Generally, Plants use ____and ____ for exchange of gases

(a)  

Cutaneous respiration in Toad is through one the following organs

• Skin

• Mouth

• Lungs

• Alveoli

Exchange of gases in Man takes place via the ____

• Trachea

• Alveoli

• Skin

• Larynx

A flat piece of tissue that prevents food particles from entering into the larynx and trachea is_____

• Epiglottis

• Pharynx

• Nose

• Cilia

A respiratory surface must have the following characteristics. Thick the correct answers.

• Moist

• Impermeable to gases

• Permeable to gases

• Must have a large surface area

Gill chambers in the fish consists of the following except____

• Gill filament

• Gill raker

• Gill arch

• Operculum

Exchange of gases in the fish takes place in the

(a)  

Inhalation makes the diaphragm to _____

• Relax

• Contract

• assumes a dome shape