The glucose concentration is higher in the cytosol of an intestinal epithelial cell (IEC) than it is in the intestinal lumen and in the basal extracellular fluid. Thus, to prevent glucose from leaving the IEC and going into the intestine lumen and to allow glucose to enter into the blood: a. IEC symporters are found only in the plasma membrane (PM) facing the intestine lumen. b. IEC Na+/glucose symporters are found only in the plasma membrane (PM) facing the basal extracellular fluid c. IEC glucose uniporters are found only in the PM facing the basal extracellular fluid. d. IEC glucose uniporters are found only in the PM facing the intestine lumen. e. Both a and c are correct answers.

Which of the following statements is correct in hour our immune system responds to a potential pathogen? a. the adapted immune system will call on the innate immune system to destroy the pathogen. b. b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c. the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. d. the t-cells in the adapted immune systems are the first to recognize the pathogen vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a. antigen, antibody b. antibody, antigen c. antibody, antibiotic d. antibiotic, antibody