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biology > Bio 125 Lab Practical 1 > Flashcards

Bio 125 Lab Practical 1 Flashcards

1
Q

Brightfield Microscope

A

a type of compound microscope that allows light rays to pass directly to the eye w/out being deflected by an intervening opaque plate in the condenser

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2
Q

Resolving Power

A

ability of the lens to show two adjacent objects as discrete entities

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3
Q

Working Distance

A

proximity of the slide to the bottom of the objective lens

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4
Q

Refractive Index

A

the light bending ability of glass, oil, and air

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5
Q

Total Magnification Formula

A

oculars x objective lens = total magnification

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6
Q

Scanning Power =

A

40x

(10x4)

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7
Q

Low Power =

A

100x

(10x10)

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8
Q

High Power=

A

400x

(10x40)

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9
Q

Oil Immersion =

A

1000x

(10x100)

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10
Q

Working Distances

A

scanning= 9-10 mm

low power= 5-8mm

high power= 0.5-0.7mm

oil immersion= 0.13-0.18 mm

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11
Q

Parfocal

A

an object in view under one objective will still be in view under other objectives

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12
Q

Field of View

A

area seen through a microscope

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13
Q

Vector

A

agents that carry a pathogen affecting another species

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14
Q

Tick

aka

Ixodes Species

A

D= Eukarya

K= Animalia

P= Arthropoda

C=Arachnida

G=Ixodes

S=

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15
Q

Itch Mite

aka

Sarcoptes scabiei

A

D= Eukarya

K= Animalia

P= Arthropoda

C= Arachnida

G= Sarcoptes

S= scabiei

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16
Q

Flea

aka

Xenospylla

A

D= Eukarya

K= Animalia

P= Arthropoda

C= Insecta

G= Xenospylla

S=

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17
Q

Human Head or Body Louse

aka

Pediculus humanus capitis or corporis

A

D= Eukarya

K= Animalia

P= Arthropoda

C= Insecta

G= Pediculus humanus

S= capitis or corporis

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18
Q

Parasite

A

an organism that attacks and consumes parts of an organism much larger than itself

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19
Q

Host

A

the organism that harbors a parasite

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20
Q

Loss of Competency

A

when a parasite becomes so dependent on its host that it can no longer live indendently

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21
Q

Acoelomate

A

without a body cavity

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22
Q

Tapeworm

A

D= Eukarya

K= Animalia

P= Platyhelminthes (flatworms)

C= Cestoda (tapeworms)

G= Taenia

S= solium

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23
Q

Dog Tapeworm

aka

Echinococcus granulosus

A

D= Eukarya

K= Animalia

P= Platyhelminthes

C= Cestoda

G= Echinococcus

S= granulosus

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24
Q

Asian Liver Fluke

aka

Clonorchis sinensis

or

Opisthorchis sinensis

A

D= Eukarya

K= Animalia

P= Platyhelminthes

C= Trematoda (flukes)

G= Clonorchis

S= sinensis

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25
Q

Giant Intestinal Fluke

aka

Fasciolopsis buski

or

Fasciola hepatica (liver fluke)

A

D= Eukarya

K= Animalia

P= Platyhelminthes

C= Trematoda

G= Fasciolopsis or Fasciola

S= buski or hepatica

26
Q

Blood Fluke

aka

Schistosoma mansoni

A

D= Eukarya

K= Animalia

P= Platyhelminthes

C= Trematoda

G= Schistosoma

S= mansoni

27
Q

Pinworm

aka

Enterobius vermicularis

A

D= Eukarya

K= Animalia

P= Nemahelminthes or Nematoda (roundworms)

C= Rhabditea

G= Enterobius

S= vermicularis

28
Q

Intestinal Roundworm

aka

Ascaris lumbricoides

A

D= Eukarya

K= Animalia

P= Nemahelminthes or Nematoda

C= Rhabditea

G= Ascaris

S= lumbricoides

29
Q

Hookworm

aka

Ancylostoma caninum

A

D= Eukarya

K= Animalia

P= Nemahelminthes or Nematoda

C= Rhabditea

G= Ancylostoma

S= caninum

30
Q

Threadworm

aka

Trichinella spiralis

A

D= Eukarya

K= Animalia

P= Nematoda

C= Enoplea

G= Trichinella

S= spiralis

31
Q

Whipworm

aka

Trichuris trichiura

A

D= Eukarya

K= Animalia

P= Nematoda

C= Enoplea

G= Trichuris

S= trichiura

32
Q

Leech

aka

Haemopsis species

A

D= Eukarya

K= Animalia

P= Annelida

C= Hirudinea

G= Haemopsis

S=

33
Q

Protozoa

A

unicellular, eukaryotic organisms

Key Features:

  • absences of a cell wall
  • pellicle: flexible layer outside of the cell membrane
  • ability to move by locomotor organelles or gliding mechanism
  • mostly heterotrophic but can be photosynthetic
  • primarily asexual reproduce thru sexual modes
34
Q

Amoeba

A

D= Eukarya

K= n/a

P= Amoebozoa or Rhizopoda

G= Entamoeba

S= histolytica

35
Q

Amoeba Proteus

A

D= Eukarya

K= n/a

P= Tubulinea

G= Amoeba

S= proteus

36
Q

Trypanosoma

A

D= Eukarya

K= n/a

P= Euglenozoa

G= Trypanosoma

S= lewisi

37
Q

Giardia

A

D= Eukarya

K= n/a

P= Metamonada

G= Giardia

S= lamblia

38
Q

Name the three species of Trichomonas and their locationa

A

1) Trichomomonas hominis- large intestine, harmless infection
2) Trichomonas tenax- mouth, also harmless
3) Trichomonas vaginalis- vagina, urethra, seminal vesicles; causes venereal disease

39
Q

Trichomonas

A

D= Eukarya

K= n/a

P= Metamonada

G= Trichomonas

S= vaginalis

40
Q

Balantidium

A

D= Eukarya

K= n/a

P= Ciliophora

G= Balantidium

S= coli

41
Q

Plasmodium (malaria)

A

D= Eukarya

K= n/a

P= Apicomplexa

G= Plasmodium

S= malariae

42
Q

Diatoms aka Plankton

A

phytoplankton, food chains in the ocean

P= heterokontophytos

43
Q

Dinoflagellates

A
  • have photosynthetic pigments and are strengthened by internal plates of cellulose
  • bioluminescent= red tides
  • neurotoxins= can poison humans who eat shellfish that have ingested planktonic dinoflagellates and concentrated their toxins
44
Q

Fungi

A

eukaryotic cells which lack chlorophyll (cannot generate energy thru photosynthesis)

  • require aerobic environments
  • produce enzymes
  • absorb nutrients
45
Q

Saprophytic

A

obtain nutrients from dead matter

aka parasitic

46
Q

Distinguishing Features of Fungi

A

1) eukaryotic
2) heterotrophic
3) lack tissue differentiation
4) chitin cell walls
5) propogate by spores

47
Q

Fungi belong to Kingdom Myceteae

Name the three divisions

A

1) Mastigomycota= water molds
2) Gymnomycota= slime molds
3) Amastigomycota= yeasts, molds, bracket fungi, others

48
Q

Dimorphic

A

species of fungi that can exist as molds or yeasts under certain conditions

49
Q

Hyphae

A

microscopic filaments of molds

50
Q

Mycelium

A

mass of intertwined hyphae

51
Q

Septa

A

crosswalls that seperate hyphae into individual compartments with an organized nucleus and organelles

52
Q

Nonseptate or Coenocytic

A

having no septate

53
Q

Name the two types of asexual spores seen in molds

A

1) sporangiospores-form w/in a sac called a sporangium
2) conidia (aka phialospores)- form in specialized hyphae called conidiophores or phialide
- micro and macro conidia

54
Q

Name the three types of sexual spores seen in molds

A

1) zygospores- formed from union of nuclear material from hyphae of two diff. strains
2) ascospores- produced in enclosures called asci
3) basidiospores- produced in club shaped bodies called basidia

55
Q

Yeasts

A
  • don’t have true hyphae
  • form multicellular structures called pseudohyphae
  • produce asexual spores called blastospores or buds
56
Q

Ubiquitous

A

state or capacity of being everywhere at the same time

57
Q

Chemically defined medium

A

a medium whose exact chemical composition is known

58
Q

Agar

A

an extract from marine red algae

59
Q

inoculated

A

intentionally introduced

60
Q

Colony

A

a population of cells that theoretically arises from a single bacterial cell

61
Q

Colony forming unit

A

a colony that arises from a group of microbes attached to one another

62
Q

Sterilized

A

rendered free of life

biology (6 decks)

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