Hemoglobin

question 25

Multiple Choice

Hemoglobin

• A)contains iron.
• B)carries O₂.
• C)is a respiratory pigment.
• D)All apply.

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Definitions:

Alveoli

Tiny air sacs within the lungs where gas exchange of oxygen and carbon dioxide occurs.

Bronchioles

Small passages in the lungs that connect the bronchi to the alveoli, facilitating the transfer of oxygen and carbon dioxide.

Nasal Cavity

The large air-filled space behind the nose involved in respiration and filtering, warming, and moistening incoming air.

Glottis

The part of the larynx consisting of the vocal cords and the slit-like opening between them, involved in breathing, producing sound, and protecting the trachea against food aspiration.