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Questions and Answers
Which of the following is a consequence of cell wall damage in bacteria?
Which of the following is a consequence of cell wall damage in bacteria?
- Enhanced biofilm formation
- Loss of cell shape and structure (correct)
- Increased antibiotic resistance
- Increased DNA replication
What is the function of lipopolysaccharides in Gram-negative bacteria?
What is the function of lipopolysaccharides in Gram-negative bacteria?
- To maintain cell shape and structure
- To regulate gene expression
- To synthesize peptidoglycan
- To play a role in the innate immune response (correct)
What is the characteristic of acid-fast cell walls?
What is the characteristic of acid-fast cell walls?
- High lipid content (correct)
- High peptidoglycan content
- High water content
- High protein content
What is the function of the periplasm in Gram-negative bacteria?
What is the function of the periplasm in Gram-negative bacteria?
What is the purpose of Gram staining in microbiology?
What is the purpose of Gram staining in microbiology?
Flashcards
Cell Wall Damage Effect
Cell Wall Damage Effect
Loss of cell shape and structure in bacteria.
Lipopolysaccharide's Role
Lipopolysaccharide's Role
Triggers the body's innate immune response in Gram-negative bacteria.
Acid-Fast Cell Wall
Acid-Fast Cell Wall
High lipid content, making them less permeable to certain stains.
Periplasm Function
Periplasm Function
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Gram Staining Purpose
Gram Staining Purpose
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Study Notes
The Cytoplasmic Membrane
- The cytoplasmic membrane is 7 nm thick and composed of phospholipid and protein molecules.
- It has a distinctive structure with 2 dark bands separated by a light band.
- Prokaryotic membranes, excluding mycoplasmas, lack sterols.
Functions of the Cytoplasmic Membrane
- Acts as an osmotic or permeability barrier, allowing for passive and facilitated diffusion.
- Performs other functions, but these are not specified.
Cell Structure of the Domain Bacteria
- Consists of two main components:
- The cytoplasmic membrane
- The bacterial cell wall
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Description
Learn about the composition and characteristics of the cytoplasmic membrane in cells, including its thickness, molecular structure, and differences in prokaryotic membranes.
