QUESTIONS AND ANSWERS A+ GRADED
Microscope involves three principles
1. Magnification
2. Contrast
3. Resolving power (sharpness)
Base
Arm
Objective lens
Ocular lens (eyepiece)
Diaphragm
Revolving Nosepiece
Coarse-focus Knob
Fine-focus knob
Mechanical stage
Stage clip adjustment knob
light source adjustment knob
light source
Domain Bacteria: Kingdom Eubacteria
-Staphylococcus
-Streptococcus
-Bacillus
-Escherichia coli
-Pseudomonas aeruginosa
Gram- positive (purple stain)
-staphylococcus
-streptococcus
-Bacillus
Staphylococcus and streptococcus are
round cocci
Bacillus are
Rod-shaped
Staphylococcus
Streptococcus
Gram- negative (pink stain)
- Escherichia coli (E-coli)
-Pseudomonas aeruginosa
E. coli/Pseudomonas aeruginosa are
rod-shaped
Escherichia coli
gram negative, rod shaped
Pseudomonas aeruginosa
gram negative, rod shaped
, Kingdom Protista
is a polyphyletic group
Three main locomotion structure of protist
1. Pseudopodia
2. Flagella
3. Cilia
Amoeba
without hard structure
Foraminifera
amoebas with a calcium shell
Phylum Radiolaria
amoebas with silicon test
Radiolaria
Ciliates
Paramecium
Phylum Apicomplexa
sporozoans (plasmodium) parasite
Green Algae (Phylum Chlorophyta)
Volvox
Diatoms: autotrophic
Dinoflagellates - Ceratium
Phylum Euglenophyta
autotrophic flagellates
Euglena
Cuticle (Phylum Embryophyta)
Dominant gametophyte generation
bryophytes
Stomata
water is released through holes in the leaves
stomata and guard cells
Phylum Pterophyta
ferns
Alternation of generations
the alternation between the haploid gametophyte and the diploid sporophyte in a fern's
life cycle
sori
clusters of sporangia
Life cycle of sori
Gymnosperms
naked seeds because they do not have fruits
examples of gymnosperms
ginkgo, conifers, cycads, junipers
Angiosperms
plants whose seeds are enclosed fruits and whose reproductive structures are in forms
of flowers
Sepals