NEET2013BotanyBiological ClassificationActual
The term 'glycocalyx' is used for:
Options
- Aa layer present bet ween cell wall and membrane of bacteria
- Bcell wall of bacteria
- Cbacterial cell glyco-engineered to possess N -glycosylated proteins
- Da layer surrounding the cell wall of bacteria
Correct answer
D. a layer surrounding the cell wall of bacteria
Step-by-step solution
Glycocalyx is a gelatinous polysaccharide and/or polypeptide covering present in the cell envelop in bacteria. When it occurs in the form of a loose sheath, it is known as a slime layer. When it occurs in the form of a thick and tough mucilage covering, it is called a capsule. Glycocalyx assists cells in adhesion to a solid surface, and also protects pathogenic bacteria from the attack of the host's immune system. It provides protection against desiccation and holds the bacterial cells together. Related Theory The