Question

cross by facilitated diffusion. sort each statement into the correct column to compare simple and facilitated diffusion. molecules pass through proteins in the cell membrane molecules move across the cell membrane without needing cellular energy molecules pass directly through the phospholipids in the cell membrane molecules move from areas of high concentration to areas of low concentration large or charged molecules can move across the cell membrane simple diffusion facilitated diffusion both simple and facilitated diffusion

Explanation:

Simple diffusion involves molecules passing through the phospholipid - bilayer directly. Facilitated diffusion requires membrane - proteins for large or charged molecules. Both are passive transport with movement down a concentration gradient and no energy use.

Answer:

• simple diffusion: molecules pass directly through the phospholipids in the cell membrane
• facilitated diffusion: molecules pass through proteins in the cell membrane, large or charged molecules can move across the cell membrane
• both simple and facilitated diffusion: molecules move across the cell membrane without needing cellular energy, molecules move from areas of high concentration to areas of low concentration