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GCU BIO 202 exam Study Guide with Questions & Correct Verified Answers
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GCU BIO 202 exam Study Guide withQuestions & Correct Verified Answers
intrapleural pressure
pressure in the pleural cavity surrounding the lungs
compliance
how cooperative the lung tissue is
respiratory rate
number of breaths per minute
tidal volume
Amount of air that moves in and out of the lungs during a normal breath
Anatomic dead space volume (VD)
The volume of air the occupies the non-respiratory conducting airways
alveolar ventilation
the amount of air that reaches the alveoli per minute
composition of air
Nitrogen 78%, Oxygen 21%, Other Gases 1%(carbon dioxide & water vapor, etc.)
Dalton's Law
each gas contributes to the total pressure in proportion to its number of molecules
Henry's Law
, the solubility of a gas in a liquid is directly proportional to the partial pressure of that gas on the
surface of the liquid
hemoglobin saturation
The percentage of heme units in a hemoglobin molecule that contain bound oxygen
Environmental factors affecting hemoglobin
PO2 of blood
Blood pH
Temperature
Metabolic activity within RBCs
pH DOWN or temperature UP
more oxygen released, curve shift RIGHT
pH UP or temp DOWN
less oxygen is released, curve shift LEFT
Bohr effect
a decrease in the amount of oxygen associated with hemoglobin and other respiratory
compounds in response to a lowered blood pH resulting from an increased concentration of
carbon dioxide in the blood.
carbonic anhydrase
enzyme that catalyzes the reaction between carbon dioxide and water to form carbonic
acid (weak acid)
2,3-bisphosphoglycerate
(2,3-BPG) is created in erythrocytes during glycolysis (RBCs have no mitochondria and thus
can't produce energy via Krebs cycle or ETC)
Haldane effect
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