BOT 1010L Lecture Notes - Lecture 7: Transmission Electron Microscopy, Calcium Fluoride, Electron Microscope
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___________ increase magnification as light passes through a series of transparent lenses made of glass or calcium fluoride crystals. __________ - use a beam of electrons produced when high voltage electricity is passed through a wire. (has to be dead) ________ produce magnification up to 500,000x, but material must be sliced extremely thin. ____________ offer magnification up to 100,000x but surface detail can be observed on thick objects. The main structural component of a plant cell wall is ___________. __________, is first produced when new cell walls are formed. __________, are derived from primary walls by thickening and inclusion of lignin. _______ is a hard material embedded in the cellulose matrix of vascular plant cell walls that provides structural support in terrestrial species. Fluids and dissolved substances can pass through walls of adjacent cells via _____________. (cytoplasmic strands and endoplasmic reticulum extend between cells. )
