Arrangement G+ or G Su G+ or G-G Bacillus cereus 1000x Cell shape- roa Cell shap

Question

Arrangement G+ or G Su G+ or G-G Bacillus cereus 1000x Cell shape- roa Cell shape 0ol tn Arrangement ins G+ or G- G Look up E. coli, S. epidermidis, and B. cereus online. Search for gram-stained photos Did your slides look like the photos you found? If not, what could you have done differently? oeo sle 0 If you viewed your slide after applying the primary stain, but before decolorizing, what color would G- cells be? What color would G+ cells be? G- G+ 2 If you viewed your slide after decolorizing, but before counterstaining, what color would G- cells be? What color would G+ cells be? G- G+

Explanation / Answer

If we viewed our slide after applying the primary stain, but before decolorizing; the color

G+ cells would develop    

= the color of the primary stain; purple.

G - cells would develop    

= the color of the primary stain; purple.

If we viewed our slide after decolorizing but before counterstaining.

G+ as Gram-positive bacteria are not decolorized by alcohol and will remain as purple.

G - Gram-negative bacteria are decolorized by the alcohol, losing the color of the primary stain, purple.

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