Large molecules and wastes move through the membrane through a. lipid layers b. protein channels c. carbohydrate gates

The correct answer is B. Protein channels.

Explanation

Protein channels are open pores in the cell membrane that allow the passage of cellular waste and molecules of large size and appropriate charge through the lipid bilayer. The most widely known protein channels are ion channels, which mediate the passage of ions through the plasma membrane. According to the above, the correct answer is B. Protein Channels.

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