FIRST PUBLISH OCTOBER 2024
BMS 111 (Missouri State) Exam 1 Questions
and Answers
compound microscope - Ans:✔✔-are used to view thin specimens such as a section of tissue or small
organisms
oculars - Ans:✔✔-are the part of the microscope to which you put your eyes on
objectives - Ans:✔✔-magnify the sample
stage - Ans:✔✔-is the horizontal surface on which the microscope slide is placed
stage clip - Ans:✔✔-what holds the slide in place
stage adjustment knobs - Ans:✔✔-hang down form the side of the stage, one knob moves the slide left
to right and the other front to back
course focus knob - Ans:✔✔-moves the stage quickly
fine focus knob - Ans:✔✔-moves the stage slowly
illuminator - Ans:✔✔-microscope light source
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FIRST PUBLISH OCTOBER 2024
iris diaphragm - Ans:✔✔-is used to adjust the size of the circle of light entering the stage
condenser - Ans:✔✔-collects and focuses the light from the illuminator
rheostat - Ans:✔✔-adjusts the brightness of the light
base - Ans:✔✔-bottom of the microscope
arm - Ans:✔✔-the vertical bar of the microscope
total magnification - Ans:✔✔-is the amount the image is enlarged, the objective times the ocular
magnification
resolving power - Ans:✔✔-is the ability to distinguish features that are close together as separate
field of view - Ans:✔✔-is how much of the sample can be viewed in the x, y directions
parfocal - Ans:✔✔-the field of view remains in focus when the objectives are changed
parcentral - Ans:✔✔-when the center of the field of view stays in place when the objective is changed
contrast - Ans:✔✔-the range of light in an image, from the brightest white to the darkest black
depth of field - Ans:✔✔-is how much of the sample in the z direction is in focus
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