What Is the PaO₂ at Which the Maximal Vasoconstrictive Response

question 4

Multiple Choice

What is the PaO₂ at which the maximal vasoconstrictive response occurs when the pH is 7.40?

• A) 40-50 mm Hg
• B) 50-60 mm Hg
• C) 60-70 mm Hg
• D) 70-80 mm Hg

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Definitions:

Calvin Cycle

Cyclic series of reactions in the chloroplast stroma in photosynthesis; fixes carbon dioxide and produces carbohydrate. See C3 Plant.

Ribulose Bisphosphate

A five-carbon sugar to which atmospheric carbon dioxide is bound during the first major step of carbon fixation in photosynthesis.

PGA Molecules

Short for phosphoglyceric acid, involved in the biochemical process of photosynthesis and glycolysis.

Glyceraldehyde-3-phosphate

A three-carbon molecule that plays a central role in glycolysis and photosynthesis, involved in the biochemical pathways of energy production.