I nvestigate the microscopic structure of various plant materials. To do this, prepare very tiny, thin slices of plant specimens using a single-edged razor blade. (Take care not to injure yourself with the blade.) Keep the slices in a container of water until you are ready to observe them. To observe a specimen, place it in a drop of water on a clean microscope slide and cover it with a coverslip. Use the microscope and view the specimen using low- and high-power magnifications. Observe near the edges where your section of tissue is most likely to be one cell thick. Add a drop of dilute methylene blue or iodine-potassium-iodide stain and note if any additional structures become visible. How are the microscopic structures of the plant specimens similar to the human tissues you observed? _
How are they different?
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.