Which of the following would be likely to move through a plasma membrane by simple diffusion?

Question

Quizplus · Accepted Answer

Water (H₂O), carbon dioxide (CO₂), and oxygen (O₂) are all small, non-polar molecules that can easily pass through the lipid bilayer of a plasma membrane by simple diffusion. Polysaccharides, large protein molecules, and low-density lipoprotein particles are all much too large to diffuse through the membrane. Bacteria and yeast are also much too large to pass through the membrane. Sodium ions (Na⁺), hydrogen ions (H⁺), sugars, and amino acids are all charged or polar molecules that require specific membrane transport proteins to cross the membrane.

Which of the Following Would Be Likely to Move Through