Differentiate between the different types of protein-mediated transport and diagram the mechanisms of each, including the general energy requirements.

2. Draw, label and describe a polarized transporting epithelial cell (transporting glucose or amino acids, Na+, K+, water). Include the direction of movement and relevant membrane proteins, ions, and concentration gradients including water and relate the drawing to primary and secondary active transport (secondary active transport is also called cotransport).

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