Textbook Question
Which of the following is an intracellular parasite?
a. Rickettsia
b. Mycobacterium
c. Bacillus
d. Staphylococcus
e. Streptococcus
597
views
7. Prokaryotic Cell Structures & Functions
Gram-Negative Cell Walls
Struggling with Microbiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
The cell wall of Gram-negative organisms:
A
Has a thick peptidoglycan layer.
B
Is more permeable to various molecules than the Gram-positive cell wall.
C
Is characterized by an outer membrane containing LPS.
D
Has a thin peptidoglycan layer AND is characterized by an outer membrane containing LPS.
Verified step by step guidance1
Understand the structure of Gram-negative bacteria: Gram-negative bacteria have a unique cell wall structure that differentiates them from Gram-positive bacteria.
Identify the components of the Gram-negative cell wall: It consists of a thin peptidoglycan layer and an outer membrane.
Learn about the outer membrane: The outer membrane of Gram-negative bacteria contains lipopolysaccharides (LPS), which are important for the structural integrity and protection of the cell.
Compare the permeability: The outer membrane makes the Gram-negative cell wall more permeable to certain molecules compared to the thicker peptidoglycan layer of Gram-positive bacteria.
Recognize the correct characteristics: The Gram-negative cell wall is characterized by a thin peptidoglycan layer and the presence of an outer membrane containing LPS.
3:4mWatch next
Master Gram-Negative Cell Walls with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
Gram-Negative Cell Walls practice set
Problem sets built by lead tutorsExpert video explanations