Microscope, Microbe Experiments, Eukaryotes & Lab Safety: Study Guide for Biology Quiz
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31 Terms
Total magnification
Ocular × objective
Ocular lens
Where you look (15x)
Objective lenses
4x, 10x, 40x, 100x
Condenser
Focuses light
Iris diaphragm
Controls light
Coarse knob
Big focusing (LOW power only)
Fine knob
Sharp focus (HIGH power)
Resolution
Ability to see detail (limit ≈ 0.2 µm)
Oil immersion
Reduces light bending → clearer image
Parfocal
Stays mostly in focus when switching lenses
Culture media
Food for microbes
Agar
Makes it solid
Colony
Visible group of microbes
General media
Grows many
Enrichment media
Extra nutrients
Selective media
Blocks some, allows others
Differential media
Shows differences (like color)
Euglena
Protist with flagella + photosynthesis
Paramecium
Protist with cilia
Amoeba
Protist with pseudopods
Yeast
Fungi that is unicellular and buds
Mold
Fungi with hyphae + spores
Planaria
Multicellular worm (Animal)
Prokaryote
No nucleus
Eukaryote
Has nucleus
Fungi
Not photosynthetic, absorb nutrients
Cilia
Movement in paramecium
Flagella
Movement in euglena
Pseudopods
Movement in amoeba
BSL-1
Harmless
BSL-2
Can cause disease