【判断题】Because lipids do not dissolve in water, they can form the thin membrane barriers that keep the aqueous interior of the cell separate from the surrounding aqueous environment.
【单选题】A cluster of amphipathic helices in GLUT1 are arranged so that their polar sides face each other and line a ________________ through which glucose can pass, while their hydrophobic sides interact with...
【单选题】The lipids that can be absorbed across the epithelial wall of the small intestine are hydrophobic and would have a difficult time in the watery lumen to come in contact with the epithelial membrane. T...