RESPIRASI 15 OKT 2025
Authored by Deasyka Yastani
Health Sciences
University
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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which statement is true about oxygen transport?
Most O₂ is dissolved in plasma.
O₂ binds to the globin portion of hemoglobin
Oxyhemoglobin (HbO₂) is the major form of O₂ transport.
Hemoglobin has higher affinity for O₂ in tissues than in lungs.
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Most of the carbon dioxide in the blood is transported as:
Dissolved CO₂
Carbaminohemoglobin (HbCO₂)
Bicarbonate ion (HCO₃⁻)
Carbonic acid (H₂CO₃)
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Surfactant is mainly composed of:
A. Cholesterol and bile salts
B. Proteins and phospholipids (especially dipalmitoylphosphatidylcholine)
C. Triglycerides and sphingolipids
D. Glycoproteins only
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following best describes the Bohr Effect?
A. CO₂ and H⁺ decrease Hb’s affinity for O₂, promoting O₂ release to tissues
B. O₂ binding to Hb enhances CO₂ transport
C. CO₂ increases O₂ binding in the lungs
D. O₂ and CO₂ bind to the same site on hemoglobin
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which factor shifts the oxygen–hemoglobin dissociation curve to the right?
A. ↓ CO₂, ↓ temperature, ↑ pH
B. ↑ 2,3-BPG, ↑ CO₂, ↑ temperature
C. ↓ 2,3-BPG, ↓ CO₂, ↓ temperature
D. ↑ pH, ↓ CO₂, ↓ temperature
A. ↓ CO₂, ↓ temperature, ↑ pH
B. ↑ 2,3-BPG, ↑ CO₂, ↑ temperature
C. ↓ 2,3-BPG, ↓ CO₂, ↓ temperature
D. ↑ pH, ↓ CO₂, ↓ temperature
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