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Micro/Lab0001

Negative Staining

QuestionAnswer
Why is the size more accurate in negative stain than in direct stain negative stain is more accurate than positive stain because no heat is involved & stain does not penetrate the cell. However some shrinkage does occur
Could any dye be used in place of nigrosin for negative staining? what types can be used No only a cell that does not penetrate the cell, india ink works
why were u instucted to discard the toothpick disinfectant safe disposal to preventing spread of infectious material
what microscope technique gives a field similar in appearance of a negative stain dark microscopy
carbolfuchsin can be used as a direct stain and as a negative stain as a direct stain, ph is acidic
acidic congo red does not contain carbon particles like nigrosin but can give the appearance of a negative stain. What is the basis for this stain? the large carbon particles cannot enter the cell so the cell remains colorless against a dark background
Created by: eve amaya
 

 



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