These findings demonstrate a critical role for membrane microdomains in vesicular trafficking-mediated cell polarity ... microdomains that slow Cdc42 diffusion through additional protein and ...

In facilitated transport, membrane proteins assist the diffusion of materials through the cell membrane. The protein binds the molecule being transported on the surface of the membrane ...

Cell membranes protect and organize cells. All cells have an outer plasma membrane ... pass through membranes, but they do so more slowly. On the other hand, cell membranes restrict diffusion ...

The cell model of ion-exchange membranes reveals violations of the Onsager reciprocity principle, particularly at high ...

This takes place when molecules diffuse across the cell membrane by travelling through specific transport ... not require a supply of energy because diffusion is a spontaneous process.

Some bacterial membrane transporters work almost like freight elevators to transport substances through the cell membrane into the interior of the cell. The transporter itself spans the bacterial ...

In living things, diffusion allows substances to move in and out of cells. It's how red blood cells distribute oxygen through the body. When empty blood cells enter the lungs, which have an ...

Their ports of entry are sophisticated transport channels embedded in a cell's protective membrane. Regulating what kinds of cargo can pass through the borderlands formed by the cell's two-layer ...

Sterols are among the most abundant lipids in eukaryotic cells, yet are synthesized through notoriously long, complex metabolic pathways. Researchers have used a novel approach to show how they ...

Red blood cells have the shape of a flattened disk, generating a broad surface area for the diffusion of oxygen ... A developing fetus receives oxygen through the mother’s blood supply.