QuestionSBA
QuestionChoice
*Escherichia coli* is a rod-shaped bacterium that does not retain the crystal violet stain and takes up the red counterstain during the Gram staining procedure, classifying it as Gram-negative.
10024040
a
Gram-negative bacilli
QuestionChoice
Gram-positive bacilli are rod-shaped bacterial cells that retain the crystal violet stain during Gram staining. Examples include *Bacillus* and *Clostridium*.
10024042
c
Gram-positive bacilli
QuestionChoice
Gram-positive cocci refer to spherical bacterial cells that retain the crystal violet stain during the Gram staining procedure. Examples include *Staphylococcus* and *Streptococcus*.
10024044
e
Gram-positive cocci
QuestionChoice
Gram-negative cocci refer to spherical bacterial cells that do not retain the crystal violet stain and take up the red counterstain during the Gram staining procedure. *Neisseria gonorrhoeae* is an example of a Gram-negative cocci.
10024043
d
Gram-negative cocci
QuestionChoice
Gram-negative spirilla are spiral-shaped bacterial cells, an example of which is *Helicobacter pylori*.
10024041
b
Gram-negative spirilla
Concept
Chapter
2693
5723
Bacterial Pathogens
Topic
285
Blood/ Immunity
17206
With reference to the morphology of bacterial pathogens, *Escherichia coli* is an example of a:
a