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Exam 3: BIOS255 / BIOS 255 (Latest Update 2024 / 2025) Anatomy & Physiology III with Lab | Exam Weeks 5 – 7 Review | 100% Correct | Grade A - Chamberlain $7.99
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Exam 3: BIOS255 / BIOS 255 (Latest Update 2024 / 2025) Anatomy & Physiology III with Lab | Exam Weeks 5 – 7 Review | 100% Correct | Grade A - Chamberlain

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Exam 3: BIOS255 / BIOS 255 (Latest Update 2024 / 2025) Anatomy & Physiology III with Lab | Exam Weeks 5 – 7 Review | 100% Correct | Grade A - Chamberlain Question: External respiration Answer: exchange of gases between alveolar air and blood in pulmonary capillaries Question: Simp...

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  • September 3, 2024
  • 55
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Exam 3: BIOS255 / BIOS 255 (Latest
Update ) Anatomy &
Physiology III with Lab | Exam
Weeks 5 – 7 Review | 100% Correct
| Grade A - Chamberlain


Question:
External respiration
Answer:
exchange of gases between alveolar air and blood in pulmonary capillaries




Question:
Simple diffusion
Answer:
the reason o2 and co2 move across alveolar membrane

,Question:
simple diffusion
Answer:
movement of a solute from an area of high concentration to an area of low
concentration




Question:
Henry's law
Answer:
Amount of gas that dissolves in water is determined by partial pressure of that
gas in the air; each gas acts independently




Question:
Systemic arterial (o2) blood
Answer:
PO2 of 100mmHg, PCO2 of 40mmHg




Question:
PO2 in blood
Answer:
40 mmHg

,Question:
PO2 in alveoli
Answer:
100 mmHg




Question:
Solubility of gases
Answer:
Each gas differs in its ability to dissolve in water
More soluble -> diffuse across membrane more rapidly




Question:
Ventilation-perfusion coupling
Answer:
Airflow and blood flow are matched to each other




Question:
gas transport
Answer:
process of carrying gases from alveoli to systemic tissues and vice versa

, Question:
most oxygen (98.5%) is bound to
Answer:
hemoglobin (Hb) in RBCs




Question:
hemoglobin with one or more o2 bound
Answer:
oxyhemoglobin




Question:
hemoglobin with no oxygen bound
Answer:
deoxyhemoglobin




Question:
each hemoglobin can carry up to
Answer:
Four o2 molecules (four heme groups)

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