Search results
Results from the WOW.Com Content Network
The glycocalyx is a type of identifier that the body uses to distinguish between its own healthy cells and transplanted tissues, diseased cells, or invading organisms. Included in the glycocalyx are cell-adhesion molecules that enable cells to adhere to each other and guide the movement of cells during embryonic development. [3]
English: This image briefly shows where does glycocalyx exist in a bacteria. 7 is pointing at glycocalyx, which could either be capsule or slime layer. The difference between them is that capsule means polysaccharides are firmly attached to cell wall; while slime layer means glycoprotein loosely attach to cell wall.
Capsule and slime layer are sometimes summarized under the term glycocalyx. A bacterial capsule has a semi-rigid border that follows the contour of the cell. The capsule excludes India Ink when dyed. A slime layer is a non-rigid matrix that is easily deformed and is not able to exclude India Ink.
The biologist had just come from the first floor, where tanks held a colony of gelatinous comb jellies. The blob was bigger than others, and it looked as though two of the jellies had merged into one.
English: The glycocalyx exists in bacteria as either a capsule or a slime layer. 6 points at the glycocalyx. The difference between a capsule and a slime layer is that in a capsule polysaccharides are firmly attached to the cell wall, while in a slime layer the glycoproteins are loosely attached to the cell wall.
Many bacteria secrete extracellular polymers outside of their cell walls called glycocalyx. These polymers are usually composed of polysaccharides and sometimes protein. Capsules are relatively impermeable structures that cannot be stained with dyes such as India ink. They are structures that help protect bacteria from phagocytosis and desiccation.
A slime layer in bacteria is an easily removable (e.g. by centrifugation), unorganized layer of extracellular material that surrounds bacteria cells. Specifically, this consists mostly of exopolysaccharides, glycoproteins, and glycolipids. [1]
The benthic comb jelly is a gelatinous organism 5–8 cm wide and 10–20 cm long. It can attach itself to the sea floor using two long filaments and has two retractable tentacles at the opposite end. Its appearance has been said to resemble a two-tailed box kite. [2]