Exam (elaborations) BioChem C785

Exam (elaborations) BioChem C785 Which of the following vitamins does not travel through the bloodstream in the form of a lipid micelle? Select one: a. Vitamin C ! Vitamin C is a water soluble vitamin that is not solubilized in lipid micelles. b. Vitamin A c. Vitamin D d. Vitamin K Which lipid has a 4-ring structure? Select one: a. Sterol ! Sterols are lipids that contain four hydrocarbon rings. Cholesterol, cortisol, and testosterone are examples of sterols. b. Fatty Acid c. Phospholipid d. Plasminogen Which of the following situations is MOST likely to increase the rate of beta oxidation? Select one: a. No fat diet b. Fasting ! Beta-oxidation is a major source of cellular energy, especially during a fast when carbohydrates are not available. Glucagon is released after fasting and promotes beta-oxidation. c. Large pasta meal prior to running a marathon d. Excess intake of Vitamin B7 (biotin)