WorksheetsRespiratory Systems 1
Total questions: 8
Worksheet time: 4mins
What milestone did the fishy-looking ancestor achieve about 380 million years ago?
Breathing air
Developing gills
Growing fleshy fins
Living on land
What is the main function of the nose in the respiratory system?
Detecting odors
Warming and moistening incoming air
Producing mucus
Filtering out dust and particles
What is the purpose of the epiglottis in the respiratory system?
Producing mucus to moisten the air
Covering the larynx to prevent food and liquids from entering the lungs
Directing food and liquids toward the lungs
Supporting the trachea
What is the function of the alveoli in the respiratory system?
Warming and moistening incoming air
Producing mucus
Gas exchange with the bloodstream
Filtering out dust and particles
What is the role of the diaphragm in the breathing process?
Expanding the chest cavity to inhale air
Producing mucus to moisten the air
Supporting the trachea
Contracting to push air out of the lungs
What is the purpose of the rings in the trachea?
To keep the trachea flexible
To warm and moisten incoming air
To support the trachea during breathing
To prevent the trachea from collapsing
What is the total surface area of the alveoli in both lungs?
50 square meters
75 square meters
100 square meters
125 square meters
What are the two main principles that make respiration possible?
Endocytosis and exocytosis
Active transport and passive transport
Osmosis and filtration
Bulk flow and diffusion
