Respiration and Gas Exchange Flashcard

Front

What is the main waste product of cellular respiration that must be eliminated?

Back

Carbon dioxide (CO₂)

Front

Which part of the respiratory system is shared with the digestive system? Options: Trachea, Pharynx, Bronchi, Alveoli

Back

Pharynx

Front

What is the function of the pleural membrane?

Back

To help the lungs slide smoothly during breathing

Front

Which of the following describes the relationship between pO₂ and hemoglobin’s oxygen binding? Linear, Exponential, Sigmoid (S-shaped), Parabolic

Back

Sigmoid (S-shaped)

Front

What is the primary form of CO₂ transport in the blood?

Back

As bicarbonate ions (HCO₃⁻)

Front

Which of the following is NOT a lung volume measurement? Tidal volume, Residual volume, Vital capacity

Back

Hemoglobin volume

Front

Where are the central chemoreceptors located?

Back

Medulla oblongata

Front

What happens to the thoracic cavity during exhalation?

Back

It contracts

Front

Which cells in the alveoli produce surfactant?

Back

Type II cells

Front

What is the term for the air that remains in the lungs after maximal exhalation?

Back

Residual volume