Oxygen, O2, is a small enough molecule that it diffuses diwn it's concentration gradient into the cell and rather easily foes through the plasma membrane. Many small molecules can do this.
oxygen
Plasma membrane
The plasma membrane.
simple diffusion. Oxygen is a small, nonpolar molecule that can pass freely through the lipid bilayer of the plasma membrane. This process does not require energy and is driven by the concentration gradient of oxygen on either side of the membrane.
The cell membrane is also called the plasma membrane.
oxygen
Oxygen is a small, nonpolar molecule that can cross the plasma membrane via simple diffusion. Sodium ions, on the other hand, are charged and larger molecules that cannot easily pass through the hydrophobic interior of the plasma membrane. Sodium must rely on specific transport proteins like ion channels or pumps to cross the membrane.
diffusion
Plasma membrane
The plasma membrane.
A cell membrane is also known as a plasma membrane or cytoplasmic membrane. The cell membrane separates the interior of a cell from its outside environment. The main function of a cell membrane is to protect the cell from its surroundings.
Oxygen crosses the plasma membrane through passive diffusion, moving from an area of higher concentration (outside the cell) to an area of lower concentration (inside the cell). This process occurs due to the concentration gradient and the lipid nature of the plasma membrane, which allows small, nonpolar molecules like oxygen to pass through easily.
The plasma membrane is responsible for the passive diffusion of oxygen and carbon dioxide into and out of the cell. It regulates the movement of molecules in and out of the cell, allowing for gas exchange.
simple diffusion. Oxygen is a small, nonpolar molecule that can pass freely through the lipid bilayer of the plasma membrane. This process does not require energy and is driven by the concentration gradient of oxygen on either side of the membrane.
plasma membrane
The Plasma membrane.
The cell membrane is also called the plasma membrane.