15 Questions
What is the term used to describe the spherical or round-shaped bacteria?
Coccus
Which term is used to describe bacteria that are arranged in groups of four?
Tetrad
What is the main component of the gram-positive bacterial cell wall?
Peptidoglycan
What is the function of the teichoic acids in the gram-positive cell wall?
All of the above
What is the term used to describe bacteria that are rod-shaped?
Bacillus
What is the purpose of the cell wall in bacteria?
Both a and b
What is the name of the gelatinous substance located external to the cell wall, composed of polysaccharide or polypeptide, or both?
Glycocalyx
Which of the following is a characteristic of the gram-negative bacterial cell wall?
Contains an outer membrane
What is the term used to describe bacteria that are short and resemble elongated cocci?
Coccobacilli
Which of the following statements about the bacterial cell wall is correct?
The cell wall is composed of peptidoglycan and provides structural support and protection from osmotic damage.
Which of the following statements about the glycocalyx is correct?
The glycocalyx is a gelatinous substance located external to the cell wall, composed of polysaccharides or polypeptides, or both.
Which of the following statements about the arrangement of bacteria is correct?
Tetrads are arranged in groups of four, while coccobacilli are short and resemble elongated cocci.
Which of the following statements about the function of teichoic acids in gram-positive bacteria is correct?
Teichoic acids are surface antigens that can elicit an antibody response and aid in the attachment of the organism to host cells.
Which of the following statements about the components of gram-negative bacterial cell walls is correct?
The outer membrane is a component of gram-negative bacterial cell walls and acts as a permeability barrier.
Which of the following statements about the shapes of bacteria is correct?
Cocci are spherical or round-shaped, while bacilli are rod-shaped.
Test your knowledge on the classification of bacteria according to basic shapes and arrangements, as well as envelope structures like Glycocalyx. Learn about Cocci, Bacilli, Spiral-shaped bacteria, and their different arrangements such as diplococci, streptococci, and staphylococci.
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