Image A: Image B: 25 um O A. image A- scanning electron microscope, Image B- phase contrast microscope O B. Image A brightfield microscope; Image B- darkfield microscope O C.image A- brightfield scanning microscope Image B- phase contrast scanning microscope O D. image A- transmission electron microscope, Image B- scanning electron microscope O E. image A- scanning electron microscrope, Image B- transmission electron microscope
Microscopic examination
The analysis of minute organisms, cellular organization of any biological structure, and composition of body fluids with the help of a microscope is known as microscopic examination. The magnification of specimens or samples under study helps in attaining a clearer picture of it.
Gram Staining
Named after Hans Christian Gram, a Danish bacteriologist, Gram stain is one of the most powerful staining techniques within microbiology. This technique was introduced in 1882 to identify pneumonia-causing organisms. The Gram staining technique uses crystal violet or methylene blue as primary staining colors to distinguish gram-positive from gram-negative organisms. Under a microscope, the gram-positive organisms appear purple-brown, retaining the primary color. Gram-negative organisms appear pink or red as they do not acquire the color of the primary stain.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
