2. (8 points) Below are metabolic data measured on 4 blood samples (A, B, C, D). Two of these samples were collected from a cow one from the portal vein and one from the aorta (as a sample of peripheral blood). The other two blood samples were collected from a pig, also the portal vein and aorta. Identify each of the four and how do you know it is from the pig or the cow and the portal vein an aorta? A. B. C. D
Acetate (mm) 105 15 105 15
Propionate (mm) 12 10 65 12
Glucose (mg/dl) 40 135 5 90