Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike ...

This takes place when molecules diffuse across the cell membrane by travelling through ... by the breakdown of ATP inside the cell. This diagram shows molecules moving from area of low ...

The table below list organelles, their function and the types of cell that they can be found in. Can you fill in the blanks to complete the table? Cell structure Description Function Cell type ...

A plasma membrane is permeable to specific molecules that a cell needs. Transport proteins in the cell membrane allow for selective passage of specific molecules from the external environment.

but the one automakers are primarily focusing on for fuel cell cars is one that relies on a proton-exchange membrane, or PEM. In the generic PEM fuel cell pictured at left, the membrane lies ...

The investigators studied the membrane-targeting sequence (MTS) of bactofilin A (BacA) in Caulobacter crescentus to explore its role in membrane binding and polymerization. They used various ...

Take the evolution of sex, for instance. To make the move from asexual to sexual reproduction, nature took a system by which parent cells reproduced simply by dividing (asexual reproduction ...

A solar cell is made of two types of semiconductors, called p-type and n-type silicon. The p-type silicon is produced by adding atoms—such as boron or gallium—that have one less electron in their ...

A new approach to elucidate the operation and control of Polymer Electrolyte Membrane (PEM) fuel cells is being developed. A global reactor engineering approach is applied to PEM fuel cells to ...

The researchers identified that the molecular plasmons had a near-symmetrical structure with an arm that aided in anchoring the molecule to the lipid bilayer of the cell membrane, contributing to ...

These membranes, composed of flexible lipid bilayers, can reshape and remodel themselves during processes like cell movement, division, and molecular trafficking. Until now, it was commonly assumed ...

tearing apart cancer cells' membrane." The plasmons have an arm on one side, helping to connect the molecules to the cancer ...