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Electron micrographs of
biological material are familiar to all biologists. This program illustrates
the principles and techniques involved in the preparation and observation of
biological specimens by transmission electron microscopy, techniques vastly
different from placing a drop of pondwater on a slide and looking at algae.
In this experiment, leaf materials containing different types of plastid are
prepared for electron microscopy to provide insight into their
ultrastructure, ontogeny, and interrelationships in respect to
photosynthesis. Micrographs produced in the program and reproduced in the
guide enable students to examine closely information on the development of
chloroplasts and leucoplasts, the location of chlorophyll, and the effect of
a herbicide which is a photosynthetic inhibitor; they should also be able to
compare the various functions of light and electron microscopes. (15
minutes)
ORDER CODE: FFMBVL1086V
VHS
VIDEO
ORDER CODE: FFMBVL1086DVD
DVD
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