18 Questions
What is the primary function of the cell wall in microbes?
To provide structure and protection
What is the term for the ability of microbes to move towards or away from a stimulus?
Taxis
What is the purpose of endospores in microbes?
To ensure survival in harsh environments
What is the term for the complex community of microbes adhering to a surface?
Biofilm
What is the term for the carbohydrate-rich outer layer of microbes?
Glycocalyx
What is the term for the outer layer of polysaccharides that provides protection and facilitates adhesion to surfaces?
Capsule
What is the primary function of teichoic acids in the gram positive cell wall?
Facilitating cell adhesion and maintaining a negative charge
What is the purpose of the glycocalyx in gram positive bacteria?
To protect the bacteria from host defenses
What is the primary function of the capsule in gram positive bacteria?
Inhibiting recognition and engulfment by immune cells
What is the purpose of the slime layer in gram positive bacteria?
To retain moisture around the cell and facilitate attachment to surfaces
What is the primary function of biofilms in gram positive bacteria?
To protect the bacteria from host defenses and environmental stressors
What type of bacteria are endoflagella typically found in?
Spirochetes
What is the function of the tail attached to the amino terminus of a protein?
To allow the protein to be embedded in the lipid bilayer
What happens to a cell when it is placed in a hypotonic solution?
Water flows into the cell, causing it to swell
What is the characteristic feature of a Gram-negative cell wall?
Two membranes separated by a periplasmic space
What is the function of lysosomes in a cell?
To break down molecules
What is the characteristic feature of Mycoplasma?
The presence of a cytoplasmic membrane
What is the function of porin proteins in the outer membrane of a Gram-negative cell wall?
To facilitate the transport of molecules across the membrane
Test your knowledge of the Gram positive cell wall, including its composition, function, and features such as peptidoglycan, teichoic acids, and lipoteichoic acids. Learn about the role of these components in cell adhesion and host-pathogen interactions.
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