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Cells

TermDefinition
Ocular lens Also called eyepiece. Objects are viewed through this. It contains a lens that commonly magnifies an image 10 times.
Arm This supports the body above the stage. Always carry a microscope by this and the base.
Base The base supports the microscope.
Coarse Adjustment Knob This knob is used to focus the image of an object when it is viewed through the low power lens.
Stage This supports the object being viewed.
Stage Clips The stage clip holds a slide in place on the stage.
Objective lens This lens is closest to the object being viewed. Can magnify up to 40 times original size.
Light Source Some microscopes use light that is reflected through the stage by a mirror. Other microscopes have their own light sources.
Diaphragm This is used to adjust the amount of light passing through the slide and into an objective lens.
Slide Is a thin flat piece of glass, used to hold objects for examination under a microscope.
Lamp The light source for a microscope, typically located in the base of the microscope.
Fine adjustment Small, round knob on the side of the microscope used to fine-tune the focus of your specimen after using the coarse adjustment knob.
Magnification The action or process of magnifying something, especially visually
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.
Nucleus The round granular structure within a cell, composed of proteins, DNA, and RNA
Prokaryotic Is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
Eukaryotic An organism whose cells contain a nucleus surrounded by a membrane and whose DNA is bound together by proteins (histones) into chromosomes.
Unicellular Characterized by the formation or presence of a single cell or cells.
Multicelluar Having or consisting of many cells.
Created by: DDenney
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