Special proteins -- known as membrane transporters -- are key to the mobility of sperm cells. A research team has, with the aid of cryo-electron microscopy, succeeded in decoding the structure of ...

In order to provide a cell with energy, these molecules have to pass across the cell membrane, which functions as a barrier — but not an impassable one. ... the plasma membrane is semi-permeable.

Mitochondria are cell organelles surrounded by a double membrane. In addition to numerous essential functions in the ...

Ca2 efflux via plasma membrane Ca2 -ATPase mediates chemotaxis in ascidian sperm. Scientific Reports , 2018; 8 (1) DOI: 10.1038/s41598-018-35013-2 Cite This Page : ...

Sperm function declined after exposure to OMVs for 45 minutes. After an hour, sperm motility decreased by over 10%, while at 1.5 hours, the motile and immotile sperm percentages were about 40% and ...

Cell membrane or plasma membrane and cell wall. 2. The nucleus and. 3. ... Functions: Plasma membrane permits the entry and exit of some materials in the cells. Therefore, ...

Researchers from Osaka University have identified a new sperm membrane protein that facilitates the complex sperm-oocyte fusion that is fundamental to sexual reproduction, naming it Fertilization ...

The proteins produced by bound ribosomes are used within the plasma membrane or, through exocytosis, ... Ribosome Function in Cells. News-Medical, viewed 12 July 2025, ...

Membrane proteins perform crucial functions in biological cells, which means they play a key role in medicine and pharmacy. (Visualisations: Shutterstock) Nearly a third of all proteins in living ...

A research team reports that molecules believed to be much too large to diffuse across the cell membrane can enter with help from a family of membrane proteins (Science 2022, DOI: 10.1126/science ...