CH. 14 Respiratory system ICSE_IX

Mammals respire by:

• Gills

• Trachea

• Skin

• Lungs

Arrange the following parts of respiratory system in correct order from head to toe.

1. 1. Trachea 2. Larynx 3. Nasal passage 4. Bronchi 5. Pharynx

• 3,5,2,1,4

• 1,2,3,4,5

• 3,2,1,4,5

• 3,4,5,2,1

If someone has sore throat which part of respiratory system is effected?

• Trachea

• Larynx

• Nasal cavity

• Pharynx

Anaerobic respiration in plants leads to the production of :

• Lactic acid

• Carbon dioxide

• Ethanol

• Ascorbic acid

The sheet that separates abdominal cavity from thoracic cavity is called ______

• Sheet membrane

• Diaphragm

• Pleural membrane

• Pericardium

The muscle that assists diaphragm with expanding and compressing the lungs

• Skeletal

• Intercoastal

• Smooth

• Abdominal

During inspiration, diaphragm ______

• Is flattened

• Become dome shaped

• Become concave

• is arched

Gas exchange is a function of:

• Bronchi

• Bronchioles

• Alveoli

• Trachea

Dead air space means

• Place where no air is present

• Air present in the brain

• Air not available for gas exchange

• Air left in lungs in dead body

Maximum amount of carbon dioxide from cell to lungs is transported by:

• RBCs

• Plasma

• WBCs

• Spleen