Which of the following statements concerning membrane transport across the plasma membrane is true?

Question

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Lipid-soluble substances can pass through the plasma membrane by dissolving in the lipid bilayer due to the nonpolar nature of the membrane. This allows for the passive diffusion of small nonpolar substances such as oxygen and carbon dioxide across the membrane. Polar molecules and ions, on the other hand, cannot pass through the membrane easily and require the assistance of transport proteins. Active transport is also used to move molecules against their concentration gradient. Water can also pass through the plasma membrane through specialized channels called aquaporins. The ease of passage for cations and anions depends on various factors such as their size, charge, and concentration gradient.

Which of the Following Statements Concerning Membrane Transport Across the Plasma