Question
Biology Question on kingdom monera
The main difference in Gram (+)ve and Gram (-)ve bacteria resides in their
A
cell wall
B
cell membrane
C
cytoplasm
D
flagella.
Answer
cell wall
Explanation
Solution
Danish bacteriologists Christian Gram for the first time classified bacteria on the basis of the cell wall into two groups - gram +ve and gram -ve by staining with crystal violet and safranin. Gram +ve cell walls are less complex with peptidoglycan compounds and proteins and no lipids in the cell wall. Whereas in Gram -ve cell walls are more complex with peptidoglycan compounds, phospholipids and lipopolysaccharides and contains 20% lipids.