Final answer:
The correct answer to the question is 'c) Composed of peptidoglycan in bacteria', highlighting the unique presence and structure of the cell wall in bacterial cells.
Therefore the correct answer is option is c) Composed of peptidoglycan in bacteria
Step-by-step explanation:
The cell wall is c) Composed of peptidoglycan in bacteria. In particular, the cell walls of bacteria are unique and contain a compound known as peptidoglycan, which is built from polysaccharide chains cross-linked by peptides forming a strong, supportive net-like structure. It's important to note that the cell wall is indeed present in prokaryotic cells, which include bacteria and archaea, and is also found in plant cells, fungi, and some protists, but is absent in animal cells.
In bacteria, the cell wall composition is critical for the distinction between Gram-positive and Gram-negative bacteria in the Gram stain test, with Gram-positive having a thick peptidoglycan layer and Gram-negative having a thinner one accompanied by an outer membrane.