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Bio-225 - Lab Test 1 questions with answers, Exams of Biology

Bio-225 - Lab Test 1 questions with answers

Typology: Exams

2024/2025

Available from 07/03/2025

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Bio-225 |\- |\Lab |\Test |\1 |\questions |\with |\answers
Eyepiece |\lenses |\located |\at |\at |\the |\top |\of |\the |\microscope |\- |\CORRECT |\
ANSWERS |\✔✔Ocular |\lenses
Magnification |\level |\of |\each |\ocular |\lens |\- |\CORRECT |\ANSWERS |\✔✔10x
Lenses |\located |\above |\the |\stage, |\mounted |\on |\the |\revolving |\
nosepiece |\- |\CORRECT |\ANSWERS |\✔✔Objective |\lenses
Movable |\part |\of |\the |\microscope |\that |\acts |\as |\a |\platform |\on |\which |\to
|\mount |\slides |\- |\CORRECT |\ANSWERS |\✔✔Mechanical |\stage
Shortest, |\red-striped |\lens |\that |\carries |\the |\lowest |\magnification |\- |\
CORRECT |\ANSWERS |\✔✔Scanning |\objective
Magnification |\level |\of |\scanning |\objective |\- |\CORRECT |\ANSWERS |\
✔✔4x |\(5x)
Yellow-striped |\lens |\that |\is |\the |\second |\shortest |\on |\the |\microscope |\- |\
CORRECT |\ANSWERS |\✔✔Low |\power |\objective
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Bio-225 |- |\Lab |\Test |\ 1 |\questions |\with |\answers

Eyepiece |\lenses |\located |\at |\at |\the |\top |\of |\the |\microscope |- |\CORRECT |
ANSWERS |\✔✔Ocular |\lenses Magnification |\level |\of |\each |\ocular |\lens |- |\CORRECT |\ANSWERS |\✔✔10x Lenses |\located |\above |\the |\stage, |\mounted |\on |\the |\revolving |
nosepiece |- |\CORRECT |\ANSWERS |\✔✔Objective |\lenses Movable |\part |\of |\the |\microscope |\that |\acts |\as |\a |\platform |\on |\which |\to |\mount |\slides |- |\CORRECT |\ANSWERS |\✔✔Mechanical |\stage Shortest, |\red-striped |\lens |\that |\carries |\the |\lowest |\magnification |- |
CORRECT |\ANSWERS |\✔✔Scanning |\objective Magnification |\level |\of |\scanning |\objective |- |\CORRECT |\ANSWERS |
✔✔4x |(5x) Yellow-striped |\lens |\that |\is |\the |\second |\shortest |\on |\the |\microscope |- |
CORRECT |\ANSWERS |\✔✔Low |\power |\objective

Magnification |\level |\of |\low |\power |\objective |- |\CORRECT |\ANSWERS |
✔✔10x Color |\of |\low |\power |\objective |- |\CORRECT |\ANSWERS |\✔✔Yellow Color |\of |\scanning |\objective |- |\CORRECT |\ANSWERS |\✔✔Red Second-longest |\objective |\lens |\that |\has |\a |\blue-stripe |- |\CORRECT |
ANSWERS |\✔✔High |\power |\or |\Hi-dry |\objective Magnification |\level |\of |\hi-dry |\lens |- |\CORRECT |\ANSWERS |\✔✔40x Color |\of |\hi-dry |\lens |- |\CORRECT |\ANSWERS |\✔✔Blue Longest |\objective |\lens |- |\CORRECT |\ANSWERS |\✔✔Oil |\immersion |
objective Color |\of |\longest |\objective |\lens |- |\CORRECT |\ANSWERS |\✔✔White Magnification |\level |\of |\longest |\objective |\lens |- |\CORRECT |\ANSWERS |
✔✔100x

Knob |\used |\to |\make |\large |\movements |\of |\the |\stage |\for |\broad |
focusing |\of |\the |\scanning |\objective |- |\CORRECT |\ANSWERS |\✔✔Coarse |
adjustment |\control |\knob Knob |\used |\to |\produce |\slight |\movements |\of |\the |\stage |\for |\detailed |
focusing |\with |\any |\of |\the |\objective |\lenses |- |\CORRECT |\ANSWERS |
✔✔Fine |\adjustment |\control |\knob Term |\used |\to |\describe |\a |\microscope |\with |\two |\sets |\of |\lenses |(ocular |\and |\objective) |- |\CORRECT |\ANSWERS |\✔✔Compound |\microscope Circular |\area |\of |\white |\light |\visible |\when |\looking |\through |\ocular |
lenses |- |\CORRECT |\ANSWERS |\✔✔Field |\of |\view Term |\used |\for |\microscopes |\that |\remain |\approximately |\focused |\for |
all |\lenses |\after |\one |\lens |\is |\set. |\This |\is |\due |\to |\automatic |
adjustments |\and |\the |\increasing |\length |\of |\the |\objective |\lenses |- |
CORRECT |\ANSWERS |\✔✔Parfocal The |\bending |\of |\light |\rays |\that |\necessitates |\the |\use |\of |\oil |\at |\the |
highest |\magnification |\levels |- |\CORRECT |\ANSWERS |\✔✔Refraction Mechanism |\on |\microscope |\that |\transmits |\the |\image |\from |\the |
objective |\lens |\to |\the |\ocular |\lenses |- |\CORRECT |\ANSWERS |\✔✔Body |
tube

Primary |\stain |\in |\gram |\stain |\technique |- |\CORRECT |\ANSWERS |
✔✔Crystal |\violet Step |\one |\in |\gram |\stain |\technique |- |\CORRECT |\ANSWERS |\✔✔Crystal |
violet |\primary |\stain |\for |\ 1 |\minute, |\then |\rinse |\with |\water Time |\for |\primary |\stain |(crystal |\violet) |\in |\Gram |\Stain |- |\CORRECT |
ANSWERS |\✔✔ 1 |\minute Step |\two |\in |\gram |\stain |\technique |- |\CORRECT |\ANSWERS |\✔✔Flood |
slide |\with |\mordant |(Gram's |\iodine) |\for |\ 1 |\minute, |\then |\rinse |\with |
water Mordant |\used |\in |\Gram |\stain |- |\CORRECT |\ANSWERS |\✔✔Gram's |\iodine Function |\of |\mordant |- |\CORRECT |\ANSWERS |\✔✔Contracts |
peptidoglycan |\cell |\wall |\to |\trap |\granules |\of |\primary |\stain Time |\for |\mordant |\in |\Gram |\stain |- |\CORRECT |\ANSWERS |\✔✔ 1 |\minute Step |\three |\of |\Gram |\stain |\technique |- |\CORRECT |\ANSWERS |\✔✔Flood |
slide |\with |\decolorizer |(alcohol) |\for |\3-5 |\seconds, |\quickly |\rinsing |\with |
water

Step |\ 2 |\in |\endospore |\stain |- |\CORRECT |\ANSWERS |\✔✔Decolorize |\with |
water |\for |\ 15 |\seconds Decolorizer |\in |\endospore |\stain |- |\CORRECT |\ANSWERS |\✔✔Water |(15 |
seconds) Step |\ 3 |\in |\endospore |\stain |- |\CORRECT |\ANSWERS |\✔✔Counterstain |
with |\sefranin |\for |\ 1 |\minute Color |\of |\endospores |\under |\microscope |\after |\endospore |\stain |- |
CORRECT |\ANSWERS |\✔✔Green |(due |\to |\malachite |\green |\and |\heat) Color |\of |\bacterial |\cells |\under |\microscope |\after |\endospore |\stain |- |
CORRECT |\ANSWERS |\✔✔Pink |(Due |\to |\sefranin) Staining |\procedure |\in |\which |\you |\do |\not |\heat |\fix |- |\CORRECT |
ANSWERS |\✔✔Capsule |\staining Step |\ 1 |\of |\capsule |\stain |- |\CORRECT |\ANSWERS |\✔✔Flood |\with |\Crystal |
Violet |\for |\ 90 |\seconds Step |\ 2 |\of |\capsule |\stain |- |\CORRECT |\ANSWERS |\✔✔Rinse |\smear |\with |
20% |\copper |\sulfate |(capsules |\are |\often |\water-soluble)

Length |\of |\time |\for |\primary |\stain |\in |\capsule |\staining |\technique |- |
CORRECT |\ANSWERS |\✔✔ 90 |\seconds Name |\of |\capsule |\staining |\technique |\used |- |\CORRECT |\ANSWERS |
✔✔Anthony's |\method Color |\of |\capsules |\after |\capsule |\stain |\using |\Anthony's |\method |- |
CORRECT |\ANSWERS |\✔✔Clear |\or |\white Color |\of |\cells |\and |\background |\after |\capsule |\stain |\using |\Anthony's |
method |- |\CORRECT |\ANSWERS |\✔✔Purple Common |\method |\used |\to |\isolate |\a |\specific |\species |\for |\study |\from |\a |\sample |\that |\is |\not |\pure |- |\CORRECT |\ANSWERS |\✔✔Quadrant |\streak |
plate |\method 5 |\Colonial |\characteristics |- |\CORRECT |\ANSWERS |\✔✔Elevation, |\size, |
pigmentation, |\form, |\margin Characteristic |\of |\a |\colony |\that |\describes |\the |\appearance |\of |\the |
outer |\edge |\of |\the |\colony |- |\CORRECT |\ANSWERS |\✔✔Margin