BIOS LAB PRACTIUM exam With Actual Correct
Questions And Verified Detailed Answers| Currently
Testing Version | Already Graded A+|Newest |2026
2027
Eyepiece lens
Lens you look through, usually 10x magnification
Arm
Supports the microscope and is used to carry it
Illuminator
Light source of the microscope
1|Page
,Stage
Platform that holds the slide
Objective lenses
Primary magnification lenses on the microscope
Condenser lens
Focuses light onto the specimen
Diaphragm or iris
Controls the amount of light reaching the specimen
Coarse adjustment knob
Moves stage quickly for initial focus
2|Page
, Fine adjustment knob
Sharpens focus under high power
Aperture
Opening in the stage allowing light through
Parfocal objective
Allows microscope to stay in focus when switching lenses
Field of view
Area visible through the microscope
3|Page
Questions And Verified Detailed Answers| Currently
Testing Version | Already Graded A+|Newest |2026
2027
Eyepiece lens
Lens you look through, usually 10x magnification
Arm
Supports the microscope and is used to carry it
Illuminator
Light source of the microscope
1|Page
,Stage
Platform that holds the slide
Objective lenses
Primary magnification lenses on the microscope
Condenser lens
Focuses light onto the specimen
Diaphragm or iris
Controls the amount of light reaching the specimen
Coarse adjustment knob
Moves stage quickly for initial focus
2|Page
, Fine adjustment knob
Sharpens focus under high power
Aperture
Opening in the stage allowing light through
Parfocal objective
Allows microscope to stay in focus when switching lenses
Field of view
Area visible through the microscope
3|Page
