Sketch few bacteria viewed withthe oil immersion objective lens after negativestaining.
Complete the below . Simplestaining and Negative staining
Bacterial name, Sketch,Morphology & arrangement and Size*
*Compare the sizes of thedifferent types of bacteria viewed
(Escherichiacoli,Bacillus genus,Bacillussubtilis and Staphylococcus)
****************************************************
. Indicate if the statements below are true or false, correctthe false ones.
a. Our microscopes objectives are parfocal. (T/F)
b. When we increase themagnification, the diameter of the fieldof vision increases. (T/F)
c. Water can be used instead of immersion oil because it has thesame refractive index of the
glass microscope slide.(T/F)
3. What is the purposes of fixingthe smear?
5. What characteristic ofnigrosin helps in using it for negative staining?Explain.
6. What microscope techniquegives a field similar in appearance to that seen in thenegative
stain?
Sketch few bacteria viewed withthe oil immersion objective lens after negativestaining.
Complete the below . Simplestaining and Negative staining
Bacterial name, Sketch,Morphology & arrangement and Size*
*Compare the sizes of thedifferent types of bacteria viewed
(Escherichiacoli,Bacillus genus,Bacillussubtilis and Staphylococcus)
****************************************************
. Indicate if the statements below are true or false, correctthe false ones.
a. Our microscopes objectives are parfocal. (T/F)
b. When we increase themagnification, the diameter of the fieldof vision increases. (T/F)
c. Water can be used instead of immersion oil because it has thesame refractive index of the
glass microscope slide.(T/F)
3. What is the purposes of fixingthe smear?
5. What characteristic ofnigrosin helps in using it for negative staining?Explain.
6. What microscope techniquegives a field similar in appearance to that seen in thenegative
stain?
