GENERAL HISTOLOGY

INTRODUCTION

CELL STRUCTURE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What is the component that made up the cell wall of prokaryotes?

A	Cellulose
B	Chitin
C	Peptidoglycan
D	Phospholipids

Explanation:

Detailed explanation-1: -Explanation: Peptidoglycan (murein) is the major component of the bacterial cell wall. This peptidoglycan covering gives the cell shape and surrounds the cytoplasmic membrane. N-acetyl glucosamine (NAG) and N-acetyl muramic acid (NAM) are the structural components of peptidoglycan.

Detailed explanation-2: -The cell wall is made up of peptidoglycan, a polymer of modified sugars (N-acetyl glucosamine and N-acetyl muramic acid) crosslinked with short peptides that makes up the cell wall of prokaryotes.

Detailed explanation-3: -Peptidoglycan is made up of two repeating amino sugars, N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM), and a peptide of multiple amino acids is attached to each NAM unit.

Detailed explanation-4: -The cell wall of bacteria containspeptidoglycan, a substance that does not occur in eukaryotes and which contains D-amino acids and unusual sugars.

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