BIOLOGICAL CLASSIFICATION
KINGDOM MONERA
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Gram negative bacteria have a thin peptidoglycan layer
|
|
|
Gram positive bacteria are stained purple with gram stain
|
|
|
Gram positive bacteria have lipopolysaccharide
|
|
|
Gram negative bacteria have an outer membrane
|
Detailed explanation-1: -Gram-negative bacteria are surrounded by a thin peptidoglycan cell wall, which itself is surrounded by an outer membrane containing lipopolysaccharide. Gram-positive bacteria lack an outer membrane but are surrounded by layers of peptidoglycan many times thicker than is found in the Gram-negatives.
Detailed explanation-2: -Gram positive bacteria have a thick peptidoglycan layer and no outer lipid membrane whilst Gram negative bacteria have a thin peptidoglycan layer and have an outer lipid membrane.
Detailed explanation-3: -Lipopolysaccharides (LPS) are important outer membrane components of gram-negative bacteria.
Detailed explanation-4: -Lipopolysaccharides (LPS) are characteristic components of the cell wall of Gram negative bacteria; they are not found in Gram positive bacteria. They are localized in the outer layer of the membrane and are, in noncapsulated strains, exposed on the cell surface.
Detailed explanation-5: -One of the most studied bacterial surface molecules is the glycolipid known as lipopolysaccharide (LPS), which is produced by most Gram-negative bacteria.