Multiple Choice
Which of the following occurs in the lungs during inspiration?
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22. The Respiratory System
Introduction to Lung Physiology
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Which specific process helps the respiratory system get rid of excess water and heat?
A
Active transport of gases
B
Evaporation during exhalation
C
Osmosis in alveoli
D
Filtration in bronchioles
Verified step by step guidance1
Understand the role of the respiratory system in maintaining homeostasis, specifically how it helps regulate water and heat levels in the body.
Recall that during exhalation, the respiratory system expels air that contains water vapor and heat, which is a passive process rather than an active transport mechanism.
Learn that evaporation occurs as water vapor is released from the moist surfaces of the respiratory tract during exhalation, contributing to the removal of excess water and heat.
Differentiate evaporation from other processes like osmosis (movement of water across membranes) and filtration (separation of substances), which are not directly involved in exhalation.
Conclude that evaporation during exhalation is the specific process that helps the respiratory system get rid of excess water and heat, as it is a natural and passive mechanism tied to breathing.
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