Item BF012006: Molecules from food get from the digestive tract to the cells of the brain and the cells of the skin by way of the circulatory system.

Which of the following statements is TRUE about molecules getting from the digestive tract to cells of the brain and cells of the skin?

  1. Molecules from food get to cells of both the brain and the skin by way of the circulatory system.
  2. Molecules from food get to cells of the brain by way of the circulatory system, but molecules from food do not get to cells of the skin by way of the circulatory system.
  3. Molecules from food get to cells of both the brain and the skin but not by way of the circulatory system.
  4. Molecules from food do not get to cells of the brain or the skin.