Multiple Choice
Which of the following best describes a key difference between the lysogenic cycle and the lytic cycle in bacteriophages?
28
views
7. Prokaryotic Cell Structures & Functions
Introduction to Bacterial Cell Walls
Struggling with Microbiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Peptidoglycan is a unique macromolecule found in which part of bacterial cells?
A
Nucleoid
B
Cytoplasm
C
Cell membrane
D
Cell wall
Verified step by step guidance1
Understand that peptidoglycan is a structural polymer unique to bacteria, composed of sugars and amino acids.
Recall the main components of a bacterial cell: nucleoid (DNA region), cytoplasm (fluid inside the cell), cell membrane (phospholipid bilayer), and cell wall (rigid outer layer).
Recognize that peptidoglycan forms a mesh-like layer that provides strength and shape to the bacterial cell, preventing it from bursting due to osmotic pressure.
Identify that this mesh-like layer is located outside the cell membrane, making up the bacterial cell wall.
Conclude that peptidoglycan is found in the bacterial cell wall, not in the nucleoid, cytoplasm, or cell membrane.
3:44mWatch next
Master Introduction to Bacterial Cell Walls with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
Introduction to Bacterial Cell Walls practice set
Problem sets built by lead tutorsExpert video explanations