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biology terms Q1

vocabulary

QuestionAnswer
cell the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
prokaryotic The prokaryotes are a group of organisms whose cells lack a membrane-bound nucleus. The organisms whose cells do have a nucleus are called eukaryotes.
eukaryotic A eukaryote is an organism whose cells contain a nucleus and other structures enclosed within membranes. Eukaryotes are formally the taxon Eukarya or Eukaryota
multicellular (of an organism or part) having or consisting of many cells
eyepiece the lens or group of lenses that is closest to the eye in a microscope, telescope, or other optical instrument.
stage a small platform on a microscope where the specimen is mounted for examination
low power objective The shortest lens that is mounted on the revolving nosepiece which has the least magnification and is used to scan the specimen
scanning power objective smallest lens on nosepiece, mag 4x
high power objective The longer lens that is mounted on the revolving nosepiece which has greater magnification and is used to observe close detail.
coarse objective focuses the image when it is viewed through the scanning/low power lenes
fine adjustment knob to focus the image when it is viewed through the high power lenes
diaphragm adjust the amount of light passing through the slide and into the lens
unicellular (of protozoans, certain algae and spores, etc.) consisting of a single cell.
Created by: charlesWHS
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