Which of the Following Is the Most Important Cause of Pulmonary

question 35

Multiple Choice

Which of the following is the most important cause of pulmonary artery constriction?

• A)Low alveolar PO₂
• B)Hyperventilation
• C)Respiratory alkalosis
• D)Epinephrine

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Definitions:

Cytoplasm

The jelly-like substance within a cell that surrounds the nucleus and organelles, providing a medium for biochemical reactions.

ATP Synthase Complex

An enzyme complex that synthesizes ATP from ADP and inorganic phosphate during cellular respiration and photosynthesis.

Cristae

The folds of the inner membrane of a mitochondrion that are involved in the electron transport chain of aerobic respiration, increasing the surface area for ATP production.

Mitochondria

Mitochondria are membrane-bound cell organelles responsible for generating most of the chemical energy needed to power the cell's biochemical reactions.