Respiratory System Quiz

What is a vital function in all living organisms that facilitates the interchange of materials required for metabolic reactions?

• Photosynthesis

• Gas exchange

• Digestion

• Excretion

Which of the following is a by-product of aerobic respiration that must be removed from the organism?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

What is a key quality of respiratory surfaces that helps optimize the transfer of respiratory gases?

• Thick tissue layer

• Small surface area

• Rich blood system

• Dry surfaces

Which of the following is NOT a characteristic of respiratory surfaces?

• Large surface area

• Moist surfaces

• Thick tissue layer

• Absorptive surfaces

What is the mnemonic mentioned for remembering the qualities of respiratory surfaces?

• SMART

• START

• HEART

• PART

What is the function of alveoli in the lungs?

• To transport air to the bronchi

• To function as the site of gas exchange with the bloodstream

• To produce pulmonary surfactant

• To filter dust and particles from the air

Which type of cells release pulmonary surfactant?

• Type I pneumocytes

• Type II pneumocytes

• Alveolar macrophages

• Bronchial epithelial cells

What happens to the diaphragm during inhalation?

• It curves upwards

• It flattens

• It contracts inward

• It remains stationary

What is the term for the maximal volume of air the lungs can hold?

• Residual volume

• Tidal capacity

• Total lung capacity

• Expiratory reserve

During exhalation, what happens to the ribs?

• They are pulled upward

• They are pulled inward

• They expand outward

• They remain in place