Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BIOL 225 > (1) Protozoa > Flashcards

(1) Protozoa Flashcards

1
Q

Anthony van Leeuwenhoek 1674

A

First person to see protista

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Protista

A

a kingdom; but NOT bacteria, fungi, plant, OR animal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Protozoa

A

once a phylum in the animal kingdom
-Animal-like Protista

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

General Characteristics (Protozoa)

A

Unicellular eukaryote

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Locomotion (Protozoa)

A

Pseudopod
Cilia and Flagella
1. Paired microtubules
2. cilia=shorter, flagellum=longer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Nutrition (Protozoa)

A
  1. Phagotrophs: solid food
  2. Osmotrophs: liquid food
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Asexual Reproduction (Protozoa)

A

-Budding: fission of smaller cell from larger
-Binary Fission: fission into two equal-sized cells
-Schizogony (split): nucleus divides several times

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Sexual Reproduction (Protozoa)

A
  1. Conjugation
    -two cell pair, exchange gametic nuclei
    -genetic variation increases, vigor is restored
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Encystment (Protozoa)

A

hardcover forms and metabolism slows
-dormancy lasts until harsh conditions pass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Types of Pseudopodia

A
  1. Lobopodia: broad lobe
  2. reticulopodia: branch and rejoin
  3. Axopodia and Filopodia: thin, radiate out
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Phylum Ameobozoa

A

Typical amebas
-heterotrophs (phagocytosis)
-some have tests (shells)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Phylum Foranifera

A

foraminifera- calcium test (shell)
-reticulopodia catch prey on ocean bottom (benthic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Phylum Radiolaria

A

Radiolarian- silica test (shell)
-axopodia or filopodia catch prey as they float in the ocean (pelagic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Phylum Stramenopiles

A

axopodia prey as they float in freshwater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Phytoflagellates

A

-have chlorophyll
- referred as algae
- sometimes heterotrophic or parasitic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Zooflagellates

A

-colorless heterotrophs (animal-like)
-many are symbionts, some are also parasites

17
Q

Phylum Virdiplantae

A

-phytoflagellates

Example: Volvox - multicellular colony, autotrophic

18
Q

Phylum Euglenozoa

A

-zooflagellates

Example:
-Euglena, autotroph, and heterotroph when light-limited
-Trypanosoma - parasitic heterotroph, african sleeping sickness, tsetse fly

19
Q

Phylum Dinoflagellata

A

two flagella at right angles
-dino: “whirling”
-some are phytoflagellates

20
Q

Plankton (Phylum Dinoflagellata)

A

small passively floating animals, plants, and protistans in water; base of aquatic food chain

21
Q

Zooxanthellae (Phylum Dinoflagellata)

A

term for dinoflagellates that are considered algae and that are also ENDOSYMBIONTS inside many jellyfish, corals, and molluscs; a MUTUALISTIC relationship

22
Q

Phylum Diplomonada

A

flagella: mostly commensal in vertebrate intestine

23
Q

Symptoms Giardia Lambia (Phylum Diplomonada)

A

causes diarrhea in a number of mammals (humans, beaver)

24
Q

Phylum Ciliophora

A
  1. Multinuclear
    -macronucleous: metabolism, growth
    -micronucleous: divide/exchange in conjunction
  2. trichocysts/toxicysts: defensive thread or toxin expelled to paralyze prey
25
Q

Paramecium (Phylum Ciliophora)

A
  1. freshwater osmotroph
  2. Oral groove, contractile vacuoles
  3. Binary fission (asexual) and conjuction (sexual)
26
Q

Endosymbionts (Phylum Ciliophora)

A

commensal and parasitic

Example: Ick

27
Q

Suctorians (Phylum Ciliophora)

A
  1. young swim with cilia
  2. adults become sessile on stalk, lose cilia, develop paralyzing tentacles
28
Q

Phylum Apicomplexa

A
  1. all endoparasites
  2. Apical complex aids infection
29
Q

Toxoplasma (Phylum Apicomplexa)

A

cats a main host
congenital (born with) toxoplasmosis: 2% of US mental retardation

30
Q

Plasmadium (Phylum Apicomplexa)

A

Malaria
1. primary host:
mosquito -> gametes -> zygote -> sporozoites -> salivary glands -> humans

  1. Secondary host:
    Human -> sporozoites -> liver -> merozoites -> rbc bursting -> toxins=chills/fever -> immature gambetes picked up by mosquito

BIOL 225 (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions