Delali A. has the “stomach flu” that is going around campus and has been vomiting profusely for the past 24 hours. Not only has she been unable to keep down fluids or food, but she also has lost the acidic digestive juices secreted by the stomach that are normally reabsorbed back into the blood farther down the digestive tract. (a) In what ways might this condition threaten to disrupt homeostasis in Jennifer’s internal environment? (b) What body systems respond to resist these changes?
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.
Delali A. has the “stomach flu” that is going around campus and has been vomiting profusely for the past 24 hours. Not only has she been unable to keep down fluids or food, but she also has lost the acidic digestive juices secreted by the stomach that are normally reabsorbed back into the blood farther down the digestive tract.
(a) In what ways might this condition threaten to disrupt homeostasis in Jennifer’s internal environment?
(b) What body systems respond to resist these changes?
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