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Unformatted text preview: C) a red blood cell surrounded by plasma D) a lymphocyte before it has been taken back into lymph fluid E) a plant being grown hydroponically (in a watery mixture of designated nutrients) Question 11 2 / 2 points Ions diffuse across membranes down their Question options: A) chemical gradients. B) concentration gradients. C) electrical gradients. D) electrochemical gradients. E) A and B are correct. Question 12 0 / 2 points Glucose diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. Using this information, which transport mechanism is most probably functioning in the intestinal cells? Question options: A) simple diffusion B) phagocytosis C) active transport pumps D) exocytosis E) facilitated diffusion...
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