Multiple Choice
The force that pulls water into capillaries is called the __________.
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1. Introduction to Biology
Introduction to Biology
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The respiratory conducting passageways perform all of the following functions except ________.
A
humidifying incoming air
B
warming incoming air
C
filtering out dust and debris
D
exchanging gases between air and blood
Verified step by step guidance1
Step 1: Understand the role of the respiratory conducting passageways. These structures include the nose, pharynx, larynx, trachea, bronchi, and bronchioles. Their primary function is to transport air to the lungs, not directly exchange gases.
Step 2: Review the processes performed by the conducting passageways. They humidify incoming air by adding moisture, warm the air to body temperature, and filter out dust and debris using mucus and cilia.
Step 3: Clarify the distinction between conducting passageways and the respiratory zone. Gas exchange occurs in the respiratory zone, specifically in the alveoli, not in the conducting passageways.
Step 4: Identify the exception in the list of functions. Since gas exchange between air and blood occurs in the alveoli, this function is not performed by the conducting passageways.
Step 5: Conclude that the correct answer is 'exchanging gases between air and blood,' as this is not a function of the respiratory conducting passageways.
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