Test 1 Bio 113, Dr. Metzler, ball state university Questions And Answers Rated A+ New Update Assured Satisfaction

abiogenesis (spontaneous generation) - The belief that certain nonliving materials can change directly into living organisms Anton van Leeuwenhoek - made first simple microscope bright field microscopy - Shines light through sample and magnifies the image with a series of lenses - simple(one lens) & compound (series of lenses) Contrast - difference in light density - staining increases contrast dark field microscopy - a form of microscopy in which the specimen is brightly illuminated on a dark background Differntial staining - two colors to differentiate Ehrlich - chemotherapy: take drug/chemical for cure of infection Electron microscopes - produce magnified images by focusing beams of electrons - transmission and scanning Eukaryotes - -Cells that contain nuclei - fungi and parasitic worms Fluorescence - dyes to glowGram staining - The method used to determine what type of cell wall bacteria has. Negative = pink = cell wall. Positive = purple = no cell wall - spores will be green Heat fixing - kills the organisms, makes them adhere to the slide, and permits them to accept the stain. Hypothesis - testable prediction - experimental level Interference contrast - Produces a three-dimensional microscopy image and layer-by-layer imaging of a specimen Jenner - Developed vaccine against smallpox - used children as test subject Koch's Postulates - Set of rules for proving that a microorganism causes a specific disease. Lister - First to use disinfectants in surgical procedures - clean instruments, patients, etc. Magnification - the increase of an object's apparent size by using lenses or mirrors that refract/ bend light Microbiology - study of small life Microbiology Sub-Disciplines - - Basic research - Medical micro- Applied environment - Industrial micro Mycobacteria - acid fast bacteria - blue when gram stained