Question

What is the basic difference in gram +ve and gram -ve bacteria ??

Answer 1

The main difference is in the physical structure. Gram positive bacteria have an extra shell around them (peptidoglycan) and Gram negative bacteria do not. This shows up in a test when you stain the culture with saffron and then a violet dye. The Gram positive only show up the violet dye making them appear blue, whereas the Gram negative only display the saffron, making them appear red.

Answer 2

But peptidoglycan is present in both type of bacteria..soguy1971

Answer 3

yes it is present in both types,it is much bigger with gram positive bacteria, gram negative bacteria have a small peptidoglycan layer between the 2 cell membranes