BIOC17H3 Study Guide - Comprehensive Final Exam Guide - Bacteria, Oxygen, Dna
20 Nov 2018
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Our immune system doesn"t work well if we have too many of them. Microbiology: the scientific study of microorganisms and their effects: effects in terms of environment/physiology/technology/capacity to produce food and commodities. Organisms too small to be seen by the unaided eye. Small organisms that are relatively simple in construction: simple organization: Lack of highly differentiated cells come from a specific type of cell; no differentiation of different cells to form tissues. Lack of distinct tissues b/c didn"t have technology for viewing. Note: while they are simple in construction, they are still sophisticated. Microbial world is anything that goes below 100micrometeres to 1 micrometre: below 1micrometre = nanoworld. Compound microscope has 2 sets of lenses. Light goes through lenses --> goes through condenser --> onto specimen --> into eye. Magnification depends on the power of the ocular. 1mm canot be clearly distinguished by our eye (will look like one object) thus: we can"t form images of microbes.
