The cell wall of gram(+) contain.. Peptedo glycogen and techoic acid

The cell wall of gram(+) contain:
a. Peptedo glycogen and techoic acid***
b. Peptedoglycan only
c. Techoic acid only
d. Celleluse and pectin.

Gram positive=thick-peptdog glycogen and techonic acid
Gram negative=thin=toxic lipo poly saccharide