Podcast
Questions and Answers
Gas exchange takes place in the alveoli.
Gas exchange takes place in the alveoli.
True (A)
Oxygen passes into the lungs to be breathed out.
Oxygen passes into the lungs to be breathed out.
False (B)
Carbon dioxide is a waste product.
Carbon dioxide is a waste product.
True (A)
White blood cells are responsible for carrying oxygen in the blood.
White blood cells are responsible for carrying oxygen in the blood.
Hemoglobin is a protein in red blood cells that binds to oxygen.
Hemoglobin is a protein in red blood cells that binds to oxygen.
Flashcards
Alveoli
Alveoli
Tiny air sacs in the lungs where gas exchange occurs.
Oxygen Movement
Oxygen Movement
Oxygen enters the lungs from the air and then the blood.
Carbon Dioxide
Carbon Dioxide
A waste product produced by the body during metabolism.
White Blood Cells
White Blood Cells
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Gas Exchange
Gas Exchange
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Study Notes
Gas Exchange in the Lungs
- Gas exchange occurs primarily in the alveoli, tiny air sacs in the lungs.
- Oxygen (O2) is taken into the lungs during inhalation. It is then transferred from the alveoli to the bloodstream.
- Carbon dioxide (CO2), a waste product of cellular respiration, diffuses from the bloodstream into the alveoli to be exhaled.
- White blood cells do not directly carry oxygen in the blood. Red blood cells (erythrocytes) are the primary oxygen carriers in the blood. White blood cells (leukocytes) are part of the immune system and play a crucial role in defending the body against pathogens, but they are not involved in oxygen transport.
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