Lab Test 1 Flashcards
(40 cards)
Occular
10x magnification
eyepiece
Body/Arm
connects lens to base
Nosepiece
holds the objective lens, rroates
Stage
movable platform on which slides are mounted and secured
Coaxial Stage controls
allow the stage to move
2 knobs
Coarse adjust
outermost knob
fine focus
innermost knob
Iris diaphram
regulates light that passes through the specimen
condenser
sub stage lens
focuses light
adjusts contrast
Base
support
holds light source
compound
for slides
two lenses to focus: 10x occulars, 4x,10x,40x lens
stage clamps
holds specimen
Dissecting
for live specimens (3D)
adjustable magnification
Bryophytes
What do the lack?
non-vascular
no xylem and ploem
no roots, rhizoids
Bryophytes: Phylum________
hepatophyta
bryophyta
Phylum Hepatophyta
characteristics
Liverworts lack stomata gemmae cups alteration of generations antheridia/archegonium Gametophyte dominant
Archaegoniophores
umbrella shaped structures on the female gamete of liverworts
houses eggs
Antheridiophore
umbrella stalk structures on the male gamete of liverworts
produces sperm with antheridia
Phylum Bryophyta
3 characteristics
mosses cellular specialization possess stomata alteration of generations sporangium gametophyte dominant
Sporangium of moss
capsule on a long stalk
diploid
releases spores
Vascular- Seedless
pterophyta
lychophyta
Lycophyta
club mosses
Pterophyta
ferns
fronds
homosporous
homosporous
unigenger spores
