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Bio 111 Lab > Lab 3 > Flashcards

Lab 3 Flashcards

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Biology 101 flashcards
1
Q

Compound microscope

A

High magnification, uses two lenses

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2
Q

Ocular lenses

A

lenses you look into on compound microscope

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3
Q

revolving nose piece

A

swivel nose piece attached to ocular lense

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4
Q

carrying handle

A

handle used to carry compound microscope

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5
Q

objective lens

A

lenses used to increase or decrease degree of magnification

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6
Q

slide holder

A

metal appendage that holds slides in place on compound microscope

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7
Q

stage

A

flat area on top of which slide rests

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8
Q

condenser aperture lever

A

controls diaphragm that adjusts illumination affects contrast and resolution of the image

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9
Q

condenser

A

concentrates wave fronts into a cone of light

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10
Q

light

A

light projecting into condenser to illuminate slide

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11
Q

light intensity control

A

dial at base of microscope that controls brightness of light

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12
Q

coarse adjustment

A

used to quickly move stage or objective lens to bring specimen into rough focus

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13
Q

fine adjustment

A

smaller knob on coarse adjustment
precise adjustments to bring highest level of quality

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14
Q

Ocular lens magnification

A

10x

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15
Q

Objectives

A

4x (scanning)
10x (low)
40x (high dry)
100x (oil immersion)

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16
Q

Total magnification

A

Ocular x objective

17
Q

Parfocal

A

lens stays in place when magnification or focal length is changed

18
Q

Images under compound microscope

A

Move in opposite direction and upside down

19
Q

micron

A

u
measure sizes in microscopy
1/1,000,000 0f a meter

20
Q

resolution

A

ability to distinguish between two objects

21
Q

Cell theory

A
  1. every living org made from cells
  2. cells are the functional units of an organism
  3. all cells arise from preexisting cells
22
Q

Prokaryotic cells

A

lack membrane bound organelles and nucleus
region of dna (nucleoid)
DNA single circular molecule
small ribosomes
reproduce by fission

23
Q

Types of prokaryotes

A

bacteria, archaea, cyanobacteria

24
Q

Coccus

A

round/ spherical

25
Q

Bacillus

A

rod shaped

26
Q

Spirillum

A

corkscrew/ spiral shape

27
Q

Archaea

A

similar to bacteria
Thermophiles (high temp)
Halophiles (high salt)

28
Q

Eukaryotic cells

A

endomembrane system and membrane bound organelles
DNA in nucleus cand chromatin (individual chromosomes)
produce by mitosis and meiosis

29
Q

Types of eukarotes

A

plants, animals, fungi, protists

30
Q

Paramecium

A

Protist

31
Q

Ameoba

A

Protist

32
Q

Euglena

A

Protist

33
Q

Volvox

A

Protist

34
Q

Physarum

A

Protist

35
Q

Elodea

A

Plant cell

36
Q

Human Cheek cell

A

Animal cell

37
Q

Yeast

A

Fungal cell

Bio 111 Lab (11 decks)

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