Ch.12: The Eukaryotes: Fungi, Algae, Protozoa, and Helminths Flashcards Preview

Microbiology > Ch.12: The Eukaryotes: Fungi, Algae, Protozoa, and Helminths > Flashcards

Flashcards in Ch.12: The Eukaryotes: Fungi, Algae, Protozoa, and Helminths Deck (31):
1

Characteristic of Fungi:
kingdom,
nutrition type,
multicellurity,
cellular arrangement,
food acquisition method,
characteristic features

Fungi
chemoheterotroph
all, except yeast
unicellular, filamentous, fleshy absorptive
sexual and asexual spores

2

The study of fungi

mycology

3

Difference between bacteria and fungi

plasma membrane: ergosterols
cell wall : chitin
Eukaryotic
asexual/sexual spores
heterotrophic, aerobic, faculatative

4

The _______ of a mold or fleshy fungus consist of long filaments of cells joined together; filaments are called HYPHAE

thallus

5

a mass of hyphae

mycelium

6

______ are nonfilamentous, unicellular fungi that are typically spherical or oval. frequently found as a white powdery covering on fruits and leaves. capable of facultative anaerobic growth.

yeast

7

________ ______ such as Saccharomyces divide unevenly.

budding yeast

8

_______ _______ such as Schizosaccharomyces divide evenly to produce two new cells.

Fission yeast

9

Some fungi most notably the pathogenic species exhibit _________- two forms of growth, they can either grow as a mold or as a yeast.

dimorphism

10

Dimorphism in pathogenic fungi is temperature-dependent at

37 degrees celcius (yeast)
25 degrees celcius (mold)

11

True or False: Although fungal spores can survive for extended periods in dry or hot environments, most do not exhibit the extreme tolerance and longevity of bacterial endospores

True

12

_______ ______ are formed by hyphae of one organism. Genetically identical to the parent.

Asexual Spores

13

_________ ______: result from the fusion of nuclei from two opposite mating strains of the same species of fungus. will contain both parental strains.

sexual spores

14

Benefits of Fungi

decomposition nutrient cycling
yeast
antibiotics
increases surface area for nutrient absorption

15

Characteristic of Algae:
kingdom,
nutrition type,
multicellurity,
cellular arrangement,
food acquisition method,
characteristic features

domain eukarya; DIVIDED INTO SUPERGROUPS
photoautotrophs
both multi/uni
unicellular, colonial filamentous, tissues
diffusion
pigments

16

Key characteristics of Algae

contain chlorophyll and carry out oxygenic photosynthesis
CELL WALL CELLULOSE/ SIIICA
often green, but can also be brown/red
photosynthetic

17

Characteristic of Protozoa:
kingdom,
nutrition type,
multicellurity,
cellular arrangement,
food acquisition method,
characteristic features

SUPERGROUP
chemoheterotroph
unicellular eukaryotic organisms
absortive; ingestive
motility, some form cycst

18

Key characteristic of Protozoa:

reproduce asexually/sexually
found in both land and water
no cellulose based cell wall
motile

19

Vegetative feeding form

trophozite

20

dormant resting state during harsh conditions

cyst

21

host in which parasite reproduce sexually

definitive host

22

host in which a parasite reproduces asexually

intermediate host

23

Malaria Definitive host & intermediate host

Definitive host: anopheles mosquito
intermediate host: human

24

Characteristics of Helminth:
kingdom
nutritional type
multicellularity
cellular arrangment
food acquisition method
characteristics Features

Kingdom Animalia
chemoheterotroph
all multicellular
tissues and organs
ingestive/ absortive
elaborate life cylce

25

2 Phylums of Helminths include:

platyhelminthes (flatworms)
Nematoda (roundworms)

26

2 Class of Platyhelminthes include:

trematodes (flukes)
Cestodes ( tapeworms)

27

Which systems are underdeveloped in parasitic helminths

reduced digestive system, reduced nervous system, and reduced locomotion

28

Which systems are well developed in parasitic helminths

complex reproduction (ensure infectivity)
body covering that is resistant to host digestion

29

Male and female reproductive systems in one animals

monoecious (hermaphroditic)

30

seperate male and female

dioecious

31

Life cycle of parasitic helminth

egg
larvae
adult