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 ...

Cell structure Description Function Cell type Cell wall Freely permeable layer surrounding cell membrane. The cell wall of plant cells is made from cellulose. This gives them a rigid structure.

These include some obvious mechanical activities such as endocytosis, cell motility and membrane resealing, but also others, such as replication and transcription. Taking the motor proteins as an ...

While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions (Figure 1). In prokaryotic cells, DNA bundles together in a region called the nucleoid. Primitive ...

Animal and plant cells differ and they have similarities. Nucleus, cell membrane, cytoplasm and mitochondria are four cell components that are found in both animal and plant cells. All life on ...

Glycoproteins typically bind to receptors on the membrane of a host cell. Viruses that do not bud from the host cell membrane do not have an envelope, so they are called “naked” or ...

These spots are socRNAs being translated by ribosomes in a cell. They get brighter over time, showing active translation. The complex, which includes the socRNA and ribosome, is attached to the plasma ...

Proton exchange membrane cells include an anode ... that generates water as part of harmless byproducts, all per a description from New York's Plug Power, a hydrogen fuel cell developer not ...