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30 Cards in this Set
- Front
- Back
Microscope |
An instrument to magnify the image of an object |
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Compound Microscope |
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Basic Types of Compound Micrscopes |
1). Bright- Field 2). Dark- Field 3). Phase Contrast 4). Fluorescence |
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Bright- Field Microscope |
1). Cells absorb or scatter light 2). Contrast between specimens and background 3). 2 sets of lens; Ocular and objective 4). Parfocal |
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Parfocal |
Once focused with one lense, the microscope can keep focus when switching to other lens |
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Magnification |
1).The degree to which the viewed object is enlarged 2). The process of making the object appear larger |
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Total Magnification |
(objective lens magnification) X (ocular lens magnification) |
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Resolution |
The ability of a lens to distinguish 2 adjacent objects as separate and instinct entities |
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Resolving Power |
1). Minimum distance between 2 distinguishable objects 2). Smaller resolving distance makes greater resolution |
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Oil Immersion |
1). A technique used to increase the resolving power of a microscope
2). Immersing both the objective lens and the specimen in a transparent oil |
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Contrast |
Difference in visual properties to make an object distinguishable from others or background |
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What color are bacterial cells? |
Transparent/ Clear |
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How to raise contrast to see bacterial cells |
1). Staining 2). Dark- field microscope 3). Phase Microscope 4). Fluorescent microscope |
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Staining |
1). Dyes used to increase a cells contrast so they can be more easily seen |
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Staining Techniques |
1). Simple staining 2). Differential Staining |
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Simple Staining |
1). Apply one dye to cell or background 2). Make cell visible |
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Differential Staining |
1). Applying at least two stains 2). Distinguish different parts of the cell |
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Cell |
Smallest fundamental unit of all cellular organisms |
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Four Key subcellular structures |
1). Plasma membrane 2). Cytoplasm 3). Nucleus/ Nucleoid 4). Ribosomes |
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Plasma membrane
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1). A semipermeable barrier 2). Separates the inside of the cell from the outside 3). AKA cytoplasmic membrane and cell membrane |
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Cytoplasm
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1). Substances and structures dissolved or suspended here 2). The fluid portion of a cell, bounded by the |
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Nucleus/ Nucleoid
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1). a membrane- enclosed structure in eukaryotic cells that contains the cells DNA genome |
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Ribosomes
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Protien- synthesizing factory |
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Genome
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An organism's full complement of genes |
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Macromolecules |
A polymer that occurs naturally in living organisms.
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Polymer
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A substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
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Examples of macromolecules |
1). Nucleic acid 2). Polysaccharides 3). Lipids 4). Proteins
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Metabolism |
1). All biochemical reactions in a cell, both anabolic and catabolic 2). Carbon and energy source for cells |
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Anabolic |
The phase of metabolism in which complex molecules are formed from simpler ones.
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Catabolic |
The breaking down in living organisms of more complex substances into simpler ones
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