Question: Cell wall lack microorganism
Options:
Bacteria
Virus
Fungi
MLO
🔑Key Points:
-The cell is the structural & functional unit of life.
-Based on the presence or absence of nuclear membrane cells can categorize as prokaryotic & eukaryotic cells.
-Prokaryotic Cell –
-The cells having nuclear material without a nuclear membrane are termed prokaryotic cells.
-The organisms with these kinds of cells are called prokaryotes (pro: primitive; karyon: nucleus).
-Examples of prokaryotes are bacteria and blue-green algae.Â
-Eukaryotic cell –Â
-The cells having a well-organized nucleus with a nuclear membrane are designated as eukaryotic cells.
-All organisms other than bacteria and blue-green algae are called eukaryotes. (eu : true; karyon: nucleus).
-The Mycoplasm are organisms that completely lack a cell wall.
-They are the smallest living cells known and can survive without oxygen.
-Many mycoplasmas are pathogenic in animals and plants.
Therefore, Mycoplasmas are different from the other prokaryotes by the absence of the cell wall itself.
Additional Information
-The cell wall of fungi is composed of Chitin and Polysaccharides.
-In Euglenoids instead of a cell wall, they have a protein-rich layer called a pellicle.
-Algae have a cell wall, made of cellulose, Galatians, mannans, and minerals like calcium carbonate.