Before entering the metabolic pathways, amino acids first face____.

Which of the following statements is true of choline?

Vitamin D’s specific role in bone health is to assist in ________.

Electrons that reach the end of the electron transport chain are transferred to

Which statement is true of precursors?

Of the following foods, which one is the best source of vitamin C?

In the TCA cycle, which compound is involved in both the first and the last step?

In the Cori cycle, lactate is converted to glucose in the ____.

Which of the following vitamins is synthesized by intestinal bacteria?

Which of the following is not true of biotin?