These walls consist mainly of cellulose, noncellulosic polysaccharides and lignin, in proportions that depend upon the specific functions of the cell and its stage of development.

Eukaryotic cells form the foundation of complex life, their defining feature being the presence of membrane-bound organelles. This article details the structure of eukaryotic cells and provides ...

Prokaryotes are unicellular organisms that lack membrane-bound structures. This article details the structure of prokaryotic cells and provides examples of prokaryotic organisms.

The cell is the structural and functional unit of living organisms. It was discovered by Robert Hooke in 1665.

Xyloglucan plays two very different rôles in the control of cell growth: (a) as a major building material of the wall [concentration of xyloglucan in the wall in vivo ≃ 10% (w/v)] it probably directly ...

Do Cells, Tissues, And Organs Give Super Athletes An Edge? What does it take to be a super athlete? Take a close-up look at cells, tissues, and organs to see if their biology gives them an advantage.

A new structure in human cells has been discovered. The structure is a new type of protein complex that the cell uses to attach to its surroundings and proves to play a key part in cell division.

Researchers have developed artificial cell-like structures using inorganic matter that autonomously ingest, process, and push out material - recreating an essential function of living cells.