bacteria lab Flashcards
1
Q
Gram positive
A
- thick peptidoglycan layer
- looks purple after gram stain since it saturates the peptidoglycan layer
- staphylococcus aureus
2
Q
gram negative
A
- have a lipopolysaccharide layer
- looks red after gram stain since it saturates the peptidoglycan layer which is under the more prominent lipopolysaccharide layer
- salmonella enteritidis
3
Q
vancomycin
A
attacks gram positive bacteria
- attacks the cell wall
4
Q
nalidixic
A
effective against gram negative bacteria
- inhibits DNA synthesis
5
Q
tetracycline
A
effective against gram positive and negative bacteria
- inhibits protein synthesis
6
Q
Salmonella enteritidis
A
gram negative
7
Q
Staphylococcus aureus
A
gram positive
8
Q
Three basic forms of bacteria
A
- coccus (spherical)
- bacillus (rod-like)
- spirillum (spiral)
