The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical gram-positive bacterial cell wall structure is that they ________.

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Mycobacterium and Nocardia have a unique waxy lipid layer in their cell wall structure called mycolic acids, which makes them impermeable to antibiotics, staining techniques, and immune system components. This waxy layer also makes their cell wall more hydrophobic than the typical gram-positive bacterial cell wall.

The Difference in Cell Wall Structure of Mycobacterium and Nocardia