Excersize 9 - Gram Staining

Question 0

Names, shapes, and arrangements of the organisms used

Answer 0

*slide 1*
Staphylococcus aureus (circular, small groups)

Escherchia coli ( circular, groups)

*slide 2*
Bacillus megaterium ( rod, chains)

Moraxella catarrhalis (circular, small groups)

Question 1

Gram staining procedure

Answer 1

1) crystal violet, 1 minute
2) wash
3) grams iodine, 1 minute
4) decolorize with Alchohol, 10-20 seconds
5) wash
6) safranin, 1 minute
7) wash
8) blot dry