Bacteria Morphology Flashcards
What type of cell is a bacterial cell?
eukaryotic or prokaryotic?
prokaryotic
What are the three forms of bacteria?
Coccus (spherical)
Bacillus (rods)
Eukaryotic cells (linear)
Describe how the Staphylococcus genus looks.
- gram-positive (purple)
- spherical (cocci)
- form grape like clusters
Describe how the Streptococcus genus looks.
- gram-positive (blue/pink)
- spherical (cocci)
- form chains/pairs
Describe how the Bacillus genus looks.
- grampositive (blue)
- rod-shaped (bacillus)
- produces oval endospore (in centrum)
What does the Bacillus genus produce?
oval endopore (pink), in the center of the rod-shaped bacteria (blue).
When the Bacillus genus is stained, in what colour do the endospores and the vegetative cells appear?
endospores = green
vegetative cell = red
Describe how the Listeria genus looks.
- gram-positive (purple)
- rods
- do not produce endospores
What rods produce endospores and which dont?
produce endospores: Bacillus
do not produce endospores: Listeria
Describe how the Escherichia coli looks. State its family.
- gram-negative (pink)
- rod-shaped
- Enterobacteriaceae family
Describe how the Salmonella genus looks. State its family.
- gram-negative bacteria (pink)
- rod-shaped
- Enterobacteriaceae family
Describe how the Yersinia genus looks. State its family.
- gram-negative (pink)
- rod shaped
- Yersiniaceae family
Describe how the Malassezia genus looks.
- eukaryotic cell
- patogenic yeast
What type of cells are the ‘macrocodinia of dermophytes’ formed from?
- eukaryotic cells
