Exam 3: BIO202 / BIO202 (Latest
2024 / 2025 Update) Human Anatomy and Physiology II Exam | Questions and Verified Answers | 100% Correct | Grade A - GCU
Question:
type I pneumocytes
Answer:
squamous epithelial cells for gas exchange
Question:
type II pneumocytes
Answer:
produce surfactant in the alveoli, which decreases surface tension in the lungs
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Question:
neonates younger than 30 weeks gestation need to receive what?
Answer:
surfactant because prior to 30 weeks it is not yet produced in the fetus; lungs are likely to collapse without it
Question:
how is carbon dioxide transferred in the blood?
Answer:
as carbonic acid (H2CO3) (70% of the blood CO2 distribution)
Question:
carbonic acid further disassociates into what by which enzyme?
Answer:
carbonic anhydrase splits it into bicarbonate ions and protons
Question:
how are bicarbonate ions exchanged?
Answer:
exchanged for Cl- to maintain the pH levels of the blood
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Question:
carbon dioxide binds to what region on hemoglobin?
Answer:
nitrogen, 23% of blood carbon dioxide is distributed onto the hemoglobin
Question:
the small remainder of the blood carbon dioxide exists where?
Answer:
in the plasma
Question:
dalton's law
Answer:
partial pressure of each gas is equal to the sum of the total pressure
Question:
Boyles law
Answer:
as volume increases, pressure decreases
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