Respiratory System Quiz

What type of respiratory system is found in most insects, consisting of tiny tubes that deliver air directly to cells?

• Tracheal system

• Gills

• Lungs

• Buccal respiration

Which aquatic animals typically use gills to extract oxygen from water?

• Frogs

• Snakes

• Fish

• Tortoises

Which of the following animals is known for its ability to respire through both its skin and simple lungs, depending on its environment?

• Frogs

• Birds

• Mammals

• Insects

What is the primary function of the respiratory system?

• Transportation of nutrients

• Elimination of waste products

• Exchange of gases

• Regulation of body temperature

Which of the following is the correct order of the parts of the respiratory system through which air passes during inhalation?

• Trachea, bronchi, bronchioles, alveoli

• Alveoli, bronchioles, trachea, bronchi

• Trachea, bronchi, alveoli, bronchioles

• Bronchioles, trachea, bronchi, alveoli

What is the role of the diaphragm in the respiratory system?

• To filter impurities from the inhaled air

• To humidify the air before it enters the lungs

• To control the rate and depth of breathing

• To facilitate the exchange of gases in the alveoli

Which structure in the respiratory system prevents food from entering the trachea during swallowing?

• Alveoli

• Epiglottis

• Bronchi

• Pharynx

Which of the following is not a function of the nasal cavity in the respiratory system?

• Warming and humidifying inhaled air

• Filtering out dust and particles

• Producing mucus to aid in gas exchange

• Detecting odors

Which gas is a waste product of cellular respiration that is expelled from the body through the respiratory system?

• Nitrogen (N2)

• Carbon dioxide (CO2)

• Oxygen (O2)

• Hydrogen (H2)

In which part of the respiratory system does the actual exchange of gases (oxygen and carbon dioxide) occur with the bloodstream?

• Trachea

• Bronchi

• Alveoli

• Bronchioles