In a biology lab, students view a droplet of pond water under a microscope. One student observes a green, one-celled organism that has a flagella. What can the student infer from these observations?
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.
In a biology lab, students view a droplet of pond water under a microscope. One student observes a green, one-celled organism that has a flagella. What can the student infer from these observations?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
