Which of the following characteristics does NOT apply to the bacterial cell wall?

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It is made up of a complex polymer known as peptidoglycanIt plays the main role in determining the outcome of Gram stainingIt is a distinctly flexible and plastic structureIt includes D-form amino acids within its composition

Explanation

The bacterial cell wall is composed of peptidoglycan, a complex polymer, and is crucial for the Gram staining reaction. It also contains D-isomers of amino acids, which are uncommon in other biological structures. However, the cell wall is not a flexible, plastic-like structure; rather, it is rigid and provides shape and protection to the cell.