What are some functions of cell membrane proteins quizlet
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S pecific transport proteins (carrier proteins) are required in order to transport the majority of molecules a cell requires across its cytoplasmic membrane. This is because the concentration of nutrients in most natural environments is typically quite low. Transport proteins allow cells to accumulate nutrients from even a sparse environment.
What functions do lipids, carbohydrates and proteins have in the cell membrane? Why is the cell membrane impermeable to some ions and glucose, but is permeable to alcohol and urea? What is the function of the lipid bilayer of the plasma membrane?