Relatively small, Nonpolar molecules, molecules that do not posses an electrical charge can easily pass through the cell membrane unaided. Without the need of channel and or carrier proteins, basically transport proteins.
Molecular genetics represents the structure and function of genes at a molecular level.
Facilitated diffusion is the process of moving molecules across the membrane with the help of transport proteins to make the transportation of the molecules a lot easier and smoother.
Simple diffusion, however, does not have the assistance of transport proteins. Simple diffusion takes place when molecules move from a high concentration (of said molecule) to a low concentration.
The difference: Facilitated diffusion has the help of transport proteins while simple diffusion does not.
Hope I could help! If this isn't the answer you are looking for, or just...completely wrong, please let me know!
Plant cell Animal cell
2. Have a cell membrane. 2. Have no chloroplasts.
3. Have cytoplasm. 3. Have only small vacuoles.
4. Have a nucleus. 4. Often irregular in shape.
5. Often have chloroplasts containing chlorophyll. 5. Do not contain plastids.
Answer:
I'm not 100% sure but I'm positive the answer was or is Methane, correct me if I'm wrong!
