Why cant glucose be able to move across a cell membrane by simple ...
Jun 18, 2024 · What is the difference between facilitated diffusion and simple diffusion in terms of the mechanisms by which molecules move across a cell membrane?
Does simple diffusion require transport proteins? - Answers
Jun 12, 2024 · In summary, passive diffusion is a simple process driven by concentration gradients, while facilitated diffusion involves the assistance of transport proteins for more efficient movement of …
Why is facilitated diffusion faster than simple diffusion?
Jun 20, 2024 · Simple diffusion depends upon concentration gradients so the net movement of diffusing molecules depends on the concentration gradient, thus the rate of diffusion is directly proportional to …
What is diffusion simple? - Answers
Jun 11, 2024 · Simple diffusion is the net movement of substances from a region of high concentration to a region of low concentration so its overall net movement is along the concentration gradient.
Why does simple diffusion end? - Answers
Jun 5, 2024 · Diffusion is complete when there ceases to be a concentration gradient. For example diffusion has ended if the concentration of a substance is equal on the inside and outside of a …
What substance crosses the cell membrane by simple diffusion?
In simple diffusion, a substance passes through a membrane without any outside intermediary. The rate of diffusion is based on the force exerted.. Water, certain ions, air and glucose molecules.
Why do unicellular cells rely on diffusion? - Answers
Jun 14, 2024 · Instead, they rely on diffusion to exchange gases such as oxygen and carbon dioxide across their cell membrane. Do specialized cells in a unicellular organism perform specialized jobs?
What are the characteristics of simple diffusion? - Answers
Jun 11, 2024 · The four main kinds of passive transport are diffusion, facilitated diffusion, filtration and osmosis.Simple diffusion is the unassisted passage of small, hydrophobic, nonpolar molecules.
Why does a sugar cube disappears when it dissolves in water?
May 21, 2024 · Yes, when a sugar cube dissolves in hot water, it is a form of simple diffusion. The sugar molecules move from an area of higher concentration (sugar cube) to an area of lower concentration …
How does oxygen cross the cell membrane? - Answers
Jun 14, 2024 · Yes, nonpolar molecules can cross the cell membrane through simple diffusion. Oxygen and water molecules can penetrate the cell membrane due to small gaps that are created by the lipid …