NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM MONERA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The following statements are true about gram positive bacteria
A
Has a thick peptidoglycan layer
B
Has an outer membrane and an inner membrane
C
Has a thin peptidoglycan layer
D
red when stained with Gram stain
Explanation: 

Detailed explanation-1: -The cell wall of gram-positive bacteria is thick as it contains many layers of peptidoglycan. Whereas, the cell wall of gram-negative bacteria is thin layered and is composed of peptidoglycan and other structures. Hence, this option is correct.

Detailed explanation-2: -To withstand the turgor pressure exerted on the plasma membrane, Gram-positive microorganisms are surrounded by layers of peptidoglycan many times thicker than is found in E. coli.

Detailed explanation-3: -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-4: -The Gram-positive cell wall consists of many interconnected layers of peptidoglycan and lacks an outer membrane. Peptidoglycan prevents osmotic lysis in the hypotonic environment in which most bacteria live. Teichoic acids and lipoteichoic acids are interwoven through the peptidoglycan layers.

Detailed explanation-5: -Q. Which of the following is true about the cell wall of Gram-positive bacteria? Notes: The cell wall of Gram-positive bacteria are: consists of multiple layers, thicker than that associated with gram-negative bacteria and contains teichoic acids.

There is 1 question to complete.