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Bacteria Classification By Gram Staining
Beginning of essay
THE AMERICAN UNIVERSITY IN CAIRO
BIOLOGY DEPARTMENT
SCIENCE 453 : BIOLOGY FOR ENGINEERS REPORT No.1
Objective:
To test a sample of laboratory prepared bacteria and categorise it
according to Christian’s gram positive and gram negative classes and also by
viewing it under a high powered microsco ....
Middle of essay
....learly from
the slide. 7. The smear should rinsed for a few seconds with distilled water to
stop the action of the alcohol. 8. Drain and blot off the excess with bibulous
9. Introduce Safranin to the smear and leave standing for 20 seconds. 10. Wash
off the stain with distilled water; drain and blot off the excess with bibulous
paper. 11. Leave the slide to air dry.
B. Examination:
1. Place the slide under microscope on low powered lens. 2. Move the slide
using the apparatus until the .... |
| Number of words: 751 |
Approximate pages: 3 |
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