Eukaryotes : Fungi Algae Flashcards
Algae are photosynthetic, eucaryotic organisms
that, together with protozoa, are classified in what kingdom
kingdom Protista.
The study of algae is called
phycology
algae cells have a (a thickened cell membrane), called
pellicle
algae have (a light-sensing organelle, also known as an)
eyespot
are found in freshwater and salt water, in wet soil, and on wet rocks.
Algae
Algae produce their energy by
photosynthesis
are tiny, usually unicellular algae that live in both freshwater and seawater.
have silicon dioxide
in their cell walls; thus, they have cell walls made of glass.
Diatoms
are used in filtration systems, insulation, and abrasives.
diatoms
are microscopic, unicellular, flagellated, often photosynthetic algae
producing much of the oxygen in our atmosphere and serving as important links in food chains.
responsible for red tides
Dinoflagellates
are unicellular algae, some of which resemble a microscopic banana
Desmids
a multicellular alga (sometimes referred to as
a colonial alga or colony)
Volvox
alga, in that it possesses features possessed by both algae and protozoa.
Euglena
A typical protozoan life
cycle consists of two
stages:
a motile trophozoite stage
a nonmotile cyst stage.
is the motile, feeding, dividing stage
in a protozoan’s life cycle
trophozoite
the nonmotile, dormant, survival stage. of a protozoa
cyst
are the “garbage disposers” of nature—the “vultures
Fungi
Fungi are a diverse group of eucaryotic organisms
that include
yeasts, moulds, and mushrooms
fungi’s main source of food is
dead and decaying
organic matter.
fungi that grow as filaments called
hyphae
fungal cells can reproduce by
budding
hyphal extension
formation of
spores
Asexual fungal spores
are known as
conidia
a phylum class that include the common
bread moulds and other fungi that cause food spoilage.
Zygomycotina
a phylum class that contains fungi having no mode of sexual reproduction, or in which the mode of sexual reproduction is not known
Deuteromycota
Aspergillus and
Penicillium is under what phylum class
Deuteromycetes
yeast produce by
budding
Individual yeast cells, sometimes referred to as ____can only be observed using a microscope
blastospores
yeasts produce thick-walled, sporelike structures called
chlamydospores
They grow in the form of cytoplasmic filaments or hyphae
Moulds
also used to produce large quantities of enzymes
moulds
mushrooms, toadstools, puffballs, and bracket fungi, are collectively referred to as
Fleshy Fungi
Fungal infections are known as
mycoses
mycoses are categorized as
superficial, cutaneous, subcutaneous, or systemic mycoses
more severe types of mycoses. fungal infections of the dermis and underlying tissues
Subcutaneous and Systemic Mycoses.
can live either as
yeasts or as moulds
exist
as unicellular yeasts and produce yeast colonies
Dimorphic Fungi.
a combination of two
organisms: an alga
(or a cyanobacterium)
and a fungus
lichen
moulds that are found in soil and on rotting logs, have both fungal and protozoal characteristics and very interesting life cycles.
Slime moulds
- Which of the following statements about algae and
fungi is (are) true?
a. Algae are photosynthetic, whereas fungi are not.
b. Algal cell walls contain cellulose, whereas fungal
cell walls do not.
c. Fungal cell walls contain chitin, whereas algal cell
walls do not.
d. all of the above
d
- All of the following are algae except:
a. desmids.
b. diatoms.
c. dinoflagellates.
d. sporozoa.
d
- All of the following are fungi except:
a. moulds.
b. Paramecium.
c. Penicillium.
d. yeasts.
b
- A protozoan may possess any of the following
except:
a. cilia.
b. flagella.
c. hyphae.
d. pseudopodia.
a
- Which one of the following terms is not associated
with fungi?
a. conidia
b. hyphae
c. mycelium
d. pellicle
a
- All of the following terms can be used to describe
hyphae except:
a. aerial and reproductive.
b. septate and aseptate.
c. sexual and asexual.
d. vegetative
c
- A lichen usually represents a symbiotic relationship
between which of the following pairs?
a. a fungus and an ameba
b. a yeast and an ameba
c. an alga and a cyanobacterium
d. an alga and a fungus
d
- A stigma is a:
a. light-sensing organelle.
b. primitive mouth.
c. thickened membrane.
d. type of plastid.
a
- If a dimorphic fungus is causing a respiratory infection, which of the following might be seen in a sputum specimen from that patient?
a. amebae
b. conidia
c. hypha
d. yeast
d
- Which one of the following is not a fungus?
a. Aspergillus
b. Candida
c. Penicillium
d. Prototheca
d
