BIOL 2730 LAB OBJECTIVES 1, 2, 3, 4 EXAM REVIEW FLASH CARD SOLUTION-GUARANTEED PASS! A+ GRADE

BIOL 2730 LAB OBJECTIVES 1, 2, 3, 4 EXAM REVIEW FLASH CARD SOLUTION-GUARANTEED PASS! A+ GRADE Ocular - ANS-(Eyepiece) pair of lenses closest to eyes used to view an object through a microscope (10x magnification) Objective - ANS-Sample side (of the turret) lenses mounted in metal cylinders that magnify by 4x, 10x, 40x, 100x. The barrel length varies to exactly alight the lenses with the oculars to multiply magnification Low Power Objective - ANS-4x and 10x High-and-Dry Objective - ANS-40x (but also technically 4x and 10x) Oil Immersion Objective - ANS-100x (needs 1mm oil on slide) Fine Adjustment - ANS-Small knob on microscope used for sharp focusing Coarse Adjustment - ANS-Large knob on microscope used only in 4x objective for initial/ "rough" focusing Parfocal - ANS-The calibration of objectives so that when changing from one objective to another, the focus will not change by much and will only need to fine adjust to maintain focus Substage Condenser - ANS-The condenser limits and distributes the light source to create even illumination-the condenser may also be adjusted to increase/decrease side scatter to sharpen focused images Iris Diaphragm - ANS-A camera like diaphragm mounted with the condenser that can be used to adjust the amount of light that illuminates a sample Mechanical Stage - ANS-Holds samples steady and flat and allows for fine movement of the slides in a 2 dimensions utilizing dials mounted on the side Resolution - ANS-(Resolving power) the smallest distance 2 points can be brought together and still appear as separate points Wavelength - ANS