BISC 261 prelab 1 | Questions & Answers (100 %Score) Latest Updated 2024/2025
Comprehensive Questions A+ Graded Answers | 100% Pass
condenser lens - ✔️✔️concentrates light and makes illumination of the specimen more uniform
refraction - ✔️✔️bending of light
resolution - ✔️✔️clarity of an image
limit of resolution/resolving power - ✔️✔️an actual measurement of how far apart two points must be for
the microscope to view them as being separate
0.2 um - ✔️✔️the best limit of resolution achieved by a light microscope is about..
numerical aperture - ✔️✔️the measure of a len's ability to "capture" light coming from the specimen and
use it to make the image
dark-field microscopy - ✔️✔️a special condenser is used so only the light reflected off the specimen
enters the objective
appearance is of a brightly lit specimen against a dark background
phase contrast microscopy - ✔️✔️uses special optical components to exploit subtle differences in the
refractive indices of water and cytoplasmic components to produce contrast
fluorescence microscopy - ✔️✔️uses a fluorescent dye that emits fluorescence when illuminated with
ultraviolet radiation
prokaryotes and eukaryotes - ✔️✔️cell are divided into two major groups...
archaea and bacteria - ✔️✔️What are the two domains of prokaryotes?
Comprehensive Questions A+ Graded Answers | 100% Pass
condenser lens - ✔️✔️concentrates light and makes illumination of the specimen more uniform
refraction - ✔️✔️bending of light
resolution - ✔️✔️clarity of an image
limit of resolution/resolving power - ✔️✔️an actual measurement of how far apart two points must be for
the microscope to view them as being separate
0.2 um - ✔️✔️the best limit of resolution achieved by a light microscope is about..
numerical aperture - ✔️✔️the measure of a len's ability to "capture" light coming from the specimen and
use it to make the image
dark-field microscopy - ✔️✔️a special condenser is used so only the light reflected off the specimen
enters the objective
appearance is of a brightly lit specimen against a dark background
phase contrast microscopy - ✔️✔️uses special optical components to exploit subtle differences in the
refractive indices of water and cytoplasmic components to produce contrast
fluorescence microscopy - ✔️✔️uses a fluorescent dye that emits fluorescence when illuminated with
ultraviolet radiation
prokaryotes and eukaryotes - ✔️✔️cell are divided into two major groups...
archaea and bacteria - ✔️✔️What are the two domains of prokaryotes?
